updates

Signed-off-by: Jess Frazelle <github@jessfraz.com>

.eslintrc

@@ -4,7 +4,8 @@
       "project": "./tsconfig.json"
     },
     "plugins": [
-      "css-modules"
+      "css-modules",
+      "suggest-no-throw",
     ],
     "extends": [
       "react-app",
@@ -17,6 +18,7 @@
         "never"
       ],
       "react-hooks/exhaustive-deps": "off",
+      "suggest-no-throw/suggest-no-throw": "warn",
     },
     "overrides": [
       {
@@ -25,6 +27,12 @@
           "@typescript-eslint/no-floating-promises": "warn",
           "testing-library/prefer-screen-queries": "off"
         }
+      },
+      {
+        "files": ["src/**/*.test.ts"],
+        "rules": {
+          "suggest-no-throw/suggest-no-throw": "off",
+        }
       }
     ]
 }

.github/workflows/ci.yml

@@ -367,7 +367,7 @@ jobs:
           export VITE_KC_API_BASE_URL
           xvfb-run yarn test:e2e:tauri
         env:
-          E2E_APPLICATION: "./src-tauri/target/${{ env.BUILD_RELEASE == 'true' && 'release' || 'debug' }}/zoo-modeling-app"
+          E2E_APPLICATION: "./src-tauri/target/${{ env.BUILD_RELEASE == 'true' && 'release' || 'debug' }}/app"
           KITTYCAD_API_TOKEN: ${{ env.BUILD_RELEASE == 'true' && secrets.KITTYCAD_API_TOKEN || secrets.KITTYCAD_API_TOKEN_DEV }}
 
       - name: Run e2e tests (windows only)
@@ -376,7 +376,7 @@ jobs:
           cargo install tauri-driver --force
           yarn wdio run wdio.conf.ts
         env:
-          E2E_APPLICATION: ".\\src-tauri\\target\\${{ env.BUILD_RELEASE == 'true' && 'release' || 'debug' }}\\Zoo Modeling App.exe"
+          E2E_APPLICATION: ".\\src-tauri\\target\\${{ env.BUILD_RELEASE == 'true' && 'release' || 'debug' }}\\app.exe"
           KITTYCAD_API_TOKEN: ${{ env.BUILD_RELEASE == 'true' && secrets.KITTYCAD_API_TOKEN || secrets.KITTYCAD_API_TOKEN_DEV }}
           VITE_KC_API_BASE_URL: ${{ env.BUILD_RELEASE == 'true' && 'https://api.zoo.dev' || 'https://api.dev.zoo.dev' }}
           E2E_TAURI_ENABLED: true

.github/workflows/playwright.yml

@@ -90,26 +90,21 @@ jobs:
     - name: build web
       run: yarn build:local
     - name: Run ubuntu/chrome snapshots
-      run: yarn playwright test --project="Google Chrome" --update-snapshots e2e/playwright/snapshot-tests.spec.ts
+      run: |
+        yarn playwright test --project="Google Chrome" --update-snapshots e2e/playwright/snapshot-tests.spec.ts
+        # remove test-results, messes with retry logic
+        rm -r test-results
       env:
         CI: true
         token: ${{ secrets.KITTYCAD_API_TOKEN_DEV }}
         snapshottoken: ${{ secrets.KITTYCAD_API_TOKEN }}
-    - uses: actions/upload-artifact@v3
-      if: always()
-      with:
-        name: playwright-report
-        path: playwright-report/
-        retention-days: 30
     - name: check for changes
       id: git-check
       run: |
           git add .
           if git status | grep -q "Changes to be committed"
-          then
-            echo "::set-output name=modified::true"
-          else
-            echo "::set-output name=modified::false"
+          then echo "modified=true" >> $GITHUB_OUTPUT
+          else echo "modified=false" >> $GITHUB_OUTPUT
           fi
     - name: Commit changes, if any
       if: steps.git-check.outputs.modified == 'true'
@@ -125,17 +120,55 @@ jobs:
         git commit -am "A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu)" || true
         git push
         git push origin ${{ github.head_ref }}
+    # only upload artifacts if there's actually changes
+    - uses: actions/upload-artifact@v4
+      if: steps.git-check.outputs.modified == 'true'
+      with:
+        name: playwright-report-ubuntu
+        path: playwright-report/
+        retention-days: 30
+    # if have previous run results, use them
+    - uses: actions/download-artifact@v4
+      if: always()
+      continue-on-error: true
+      with:
+        name: test-results-ubuntu
+        path: test-results/
+    - name: Run ubuntu/chrome flow retry failures
+      id: retry
+      if: always()
+      run: |
+        if [[ -d "test-results" ]];
+        then if [[ $(ls -1 "test-results" | wc -l) != "0" ]];
+          then echo "retried=true" >> $GITHUB_OUTPUT;
+          else echo "retried=false" >> $GITHUB_OUTPUT; exit 0;
+          fi;
+        else echo "retried=false" >> $GITHUB_OUTPUT; exit 0;
+        fi;
+        yarn playwright test --project="Google Chrome" --last-failed e2e/playwright/flow-tests.spec.ts
+      env:
+        CI: true
+        token: ${{ secrets.KITTYCAD_API_TOKEN_DEV }}
     - name: Run ubuntu/chrome flow
+      if: steps.retry.outputs.retried == 'false'
       run: yarn playwright test --project="Google Chrome" e2e/playwright/flow-tests.spec.ts
       env:
         CI: true
         token: ${{ secrets.KITTYCAD_API_TOKEN_DEV }}
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
+      if: always()
+      with:
+        name: test-results-ubuntu
+        path: test-results/
+        retention-days: 30
+        overwrite: true
+    - uses: actions/upload-artifact@v4
       if: always()
       with:
         name: playwright-report-ubuntu
         path: playwright-report/
         retention-days: 30
+        overwrite: true
 
   playwright-macos:
     timeout-minutes: 60
@@ -194,16 +227,48 @@ jobs:
       run: yarn build:wasm
     - name: build web
       run: yarn build:local
+    # if have previous run results, use them
+    - uses: actions/download-artifact@v4
+      if: ${{ always() }}
+      continue-on-error: true
+      with:
+        name: test-results-macos
+        path: test-results/
+    - name: Run macos/safari flow retry failures
+      id: retry
+      if: always()
+      run: |
+        if [[ -d "test-results" ]];
+        then if [[ $(ls -1 "test-results" | wc -l) != "0" ]];
+          then echo "retried=true" >> $GITHUB_OUTPUT;
+          else echo "retried=false" >> $GITHUB_OUTPUT; exit 0;
+          fi;
+        else echo "retried=false" >> $GITHUB_OUTPUT; exit 0;
+        fi;
+        yarn playwright test --project="webkit" --last-failed e2e/playwright/flow-tests.spec.ts
+      env:
+        CI: true
+        token: ${{ secrets.KITTYCAD_API_TOKEN_DEV }}
     - name: Run macos/safari flow
+      if: steps.retry.outputs.retried == 'false'
       # webkit doesn't work on Ubuntu because of the same reason tauri doesn't (webRTC issues)
       # TODO remove this and the matrix and run all tests on ubuntu when this is fixed
       run: yarn playwright test --project="webkit" e2e/playwright/flow-tests.spec.ts
       env:
         CI: true
         token: ${{ secrets.KITTYCAD_API_TOKEN_DEV }}
-    - uses: actions/upload-artifact@v3
-      if: always()
+    - uses: actions/upload-artifact@v4
+      if: ${{ always() }}
+      with:
+        name: test-results-macos
+        path: test-results/
+        retention-days: 30
+        overwrite: true
+    - uses: actions/upload-artifact@v4
+      if: ${{ always() }}
       with:
         name: playwright-report-macos
         path: playwright-report/
         retention-days: 30
+        overwrite: true
+

Makefile

@@ -1,14 +1,17 @@
 .PHONY: dev
 
 WASM_LIB_FILES := $(wildcard src/wasm-lib/**/*.rs)
+TS_SRC := $(wildcard src/**/*.tsx) $(wildcard src/**/*.ts)
+XSTATE_TYPEGENS := $(wildcard src/machines/*.typegen.ts)
 
-dev: node_modules public/wasm_lib_bg.wasm
+dev: node_modules public/wasm_lib_bg.wasm $(XSTATE_TYPEGENS)
 	yarn start
 
+$(XSTATE_TYPEGENS): $(TS_SRC)
+	yarn xstate typegen 'src/**/*.ts?(x)'
+
 public/wasm_lib_bg.wasm: $(WASM_LIB_FILES)
 	yarn build:wasm-dev
 
-node_modules: package.json
-
-package.json:
+node_modules: package.json yarn.lock
 	yarn install

README.md

@@ -89,25 +89,6 @@ enable third-party cookies. You can enable third-party cookies by clicking on
 the eye with a slash through it in the URL bar, and clicking on "Enable
 Third-Party Cookies".
 
-## Running tests
-
-First, start the dev server following "Running a development build" above.
-
-Then in another terminal tab, run:
-
-```
-yarn test
-```
-
-Which will run our suite of [Vitest unit](https://vitest.dev/) and [React Testing Library E2E](https://testing-library.com/docs/react-testing-library/intro/) tests, in interactive mode by default.
-
-For running the rust (not tauri rust though) only, you can
-
-```bash
-cd src/wasm-lib
-cargo test
-```
-
 ## Tauri
 
 To spin up up tauri dev, `yarn install` and `yarn build:wasm-dev` need to have been done before hand then
@@ -195,7 +176,9 @@ $ cargo +nightly fuzz run parser
 For more information on fuzzing you can check out
 [this guide](https://rust-fuzz.github.io/book/cargo-fuzz.html).
 
-### Playwright
+## Tests
+
+### Playwright tests
 
 For a portable way to run Playwright you'll need Docker.
 
@@ -284,6 +267,37 @@ Where `./store` should look like this
 
 However because much of our tests involve clicking in the stream at specific locations, it's code-gen looks `await page.locator('video').click();` when really we need to use a pixel coord, so I think it's of limited use.
 
+### Unit and component tests
+
+If you already haven't, run the following:
+
+```
+yarn
+yarn build:wasm
+yarn start
+```
+
+and finally:
+
+```
+yarn test:nowatch
+```
+
+For individual testing:
+
+```
+yarn test abstractSyntaxTree -t "unexpected closed curly brace" --silent=false
+```
+
+Which will run our suite of [Vitest unit](https://vitest.dev/) and [React Testing Library E2E](https://testing-library.com/docs/react-testing-library/intro/) tests, in interactive mode by default.
+
+### Rust tests
+
+```bash
+cd src/wasm-lib
+cargo test
+```
+
 #### Some notes on CI
 
 The tests are broken into snapshot tests and non-snapshot tests, and they run in that order, they automatically commit new snap shots, so if you see an image commit check it was an intended change. If we have non-determinism in the snapshots such that they are always committing new images, hopefully this annoyance makes us fix them asap, if you notice this happening let Kurt know. But for the odd occasion `git reset --hard HEAD~ && git push -f` is your friend.

docs/kcl/KNOWN-ISSUES.md

@@ -17,4 +17,13 @@ once fixed in engine will just start working here with no language changes.
     currently move or transform the imported objects at all, once we have assemblies
     this will work.
 
-- **Fillets**: Fillets cannot intersect, you will get an error. Only simple fillet cases work currently.
+- **Fillets**: Fillets cannot intersect, you will get an error. Only simple fillet
+    cases work currently.
+
+- **Chamfers**: Chamfers cannot intersect, you will get an error. Only simple
+    chamfer cases work currently.
+
+    Sketching on the chamfered face does not currently work.
+
+- **Shell**: Shell is only working for `end` faces, not for `side` or `start` 
+    faces. We are tracking the engine side bug on this.

docs/kcl/angleToMatchLengthX.md

@@ -9,7 +9,7 @@ Returns the angle to match the given length for x.
 
 
 ```js
-angleToMatchLengthX(segment_name: string, to: number, sketch_group: SketchGroup) -> number
+angleToMatchLengthX(segment_name: TagIdentifier, to: number, sketch_group: SketchGroup) -> number
 ```
 
 ### Examples
@@ -17,11 +17,8 @@ angleToMatchLengthX(segment_name: string, to: number, sketch_group: SketchGroup)
 ```js
 const sketch001 = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
-  |> line([2, 5], %, 'seg01')
-  |> angledLineToX([
-       -angleToMatchLengthX('seg01', 7, %),
-       10
-     ], %)
+  |> line([2, 5], %, $seg01)
+  |> angledLineToX([-angleToMatchLengthX(seg01, 7, %), 10], %)
   |> close(%)
 
 const extrusion = extrude(5, sketch001)
@@ -31,7 +28,12 @@ const extrusion = extrude(5, sketch001)
 
 ### Arguments
 
-* `segment_name`: `string` (REQUIRED)
+* `segment_name`: `TagIdentifier` (REQUIRED)
+```js
+{
+	value: string,
+}
+```
 * `to`: `number` (REQUIRED)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
@@ -71,10 +73,181 @@ const extrusion = extrude(5, sketch001)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -101,8 +274,12 @@ const extrusion = extrude(5, sketch001)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -110,8 +287,12 @@ const extrusion = extrude(5, sketch001)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -123,8 +304,12 @@ const extrusion = extrude(5, sketch001)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -132,8 +317,12 @@ const extrusion = extrude(5, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -141,8 +330,12 @@ const extrusion = extrude(5, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -152,8 +345,12 @@ const extrusion = extrude(5, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -165,8 +362,12 @@ const extrusion = extrude(5, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/angleToMatchLengthY.md

@@ -9,7 +9,7 @@ Returns the angle to match the given length for y.
 
 
 ```js
-angleToMatchLengthY(segment_name: string, to: number, sketch_group: SketchGroup) -> number
+angleToMatchLengthY(segment_name: TagIdentifier, to: number, sketch_group: SketchGroup) -> number
 ```
 
 ### Examples
@@ -17,9 +17,9 @@ angleToMatchLengthY(segment_name: string, to: number, sketch_group: SketchGroup)
 ```js
 const sketch001 = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
-  |> line([1, 2], %, 'seg01')
+  |> line([1, 2], %, $seg01)
   |> angledLine({
-       angle: angleToMatchLengthY('seg01', 15, %),
+       angle: angleToMatchLengthY(seg01, 15, %),
        length: 5
      }, %)
   |> yLineTo(0, %)
@@ -32,7 +32,12 @@ const extrusion = extrude(5, sketch001)
 
 ### Arguments
 
-* `segment_name`: `string` (REQUIRED)
+* `segment_name`: `TagIdentifier` (REQUIRED)
+```js
+{
+	value: string,
+}
+```
 * `to`: `number` (REQUIRED)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
@@ -72,10 +77,181 @@ const extrusion = extrude(5, sketch001)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -102,8 +278,12 @@ const extrusion = extrude(5, sketch001)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -111,8 +291,12 @@ const extrusion = extrude(5, sketch001)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -124,8 +308,12 @@ const extrusion = extrude(5, sketch001)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -133,8 +321,12 @@ const extrusion = extrude(5, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -142,8 +334,12 @@ const extrusion = extrude(5, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -153,8 +349,12 @@ const extrusion = extrude(5, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -166,8 +366,12 @@ const extrusion = extrude(5, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/angledLine.md

@@ -9,7 +9,7 @@ Draw an angled line.
 
 
 ```js
-angledLine(data: AngledLineData, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+angledLine(data: AngledLineData, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -78,10 +78,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -108,8 +279,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -117,8 +292,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -130,8 +309,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -139,8 +322,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -148,8 +335,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -159,8 +350,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -172,15 +367,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -222,10 +428,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -252,8 +629,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -261,8 +642,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -274,8 +659,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -283,8 +672,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -292,8 +685,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -303,8 +700,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -316,8 +717,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/angledLineOfXLength.md

@@ -9,7 +9,7 @@ Draw an angled line of a given x length.
 
 
 ```js
-angledLineOfXLength(data: AngledLineData, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+angledLineOfXLength(data: AngledLineData, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -17,10 +17,10 @@ angledLineOfXLength(data: AngledLineData, sketch_group: SketchGroup, tag?: Strin
 ```js
 const sketch001 = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
-  |> angledLineOfXLength({ angle: 45, length: 10 }, %, "edge1")
-  |> angledLineOfXLength({ angle: -15, length: 20 }, %, "edge2")
+  |> angledLineOfXLength({ angle: 45, length: 10 }, %, $edge1)
+  |> angledLineOfXLength({ angle: -15, length: 20 }, %, $edge2)
   |> line([0, -5], %)
-  |> close(%, "edge3")
+  |> close(%, $edge3)
 
 const extrusion = extrude(10, sketch001)
 ```
@@ -77,10 +77,181 @@ const extrusion = extrude(10, sketch001)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -107,8 +278,12 @@ const extrusion = extrude(10, sketch001)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -116,8 +291,12 @@ const extrusion = extrude(10, sketch001)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -129,8 +308,12 @@ const extrusion = extrude(10, sketch001)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -138,8 +321,12 @@ const extrusion = extrude(10, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -147,8 +334,12 @@ const extrusion = extrude(10, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -158,8 +349,12 @@ const extrusion = extrude(10, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -171,15 +366,26 @@ const extrusion = extrude(10, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -221,10 +427,181 @@ const extrusion = extrude(10, sketch001)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -251,8 +628,12 @@ const extrusion = extrude(10, sketch001)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -260,8 +641,12 @@ const extrusion = extrude(10, sketch001)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -273,8 +658,12 @@ const extrusion = extrude(10, sketch001)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -282,8 +671,12 @@ const extrusion = extrude(10, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -291,8 +684,12 @@ const extrusion = extrude(10, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -302,8 +699,12 @@ const extrusion = extrude(10, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -315,8 +716,12 @@ const extrusion = extrude(10, sketch001)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/angledLineOfYLength.md

@@ -9,7 +9,7 @@ Draw an angled line of a given y length.
 
 
 ```js
-angledLineOfYLength(data: AngledLineData, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+angledLineOfYLength(data: AngledLineData, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -79,10 +79,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -109,8 +280,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -118,8 +293,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -131,8 +310,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -140,8 +323,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -149,8 +336,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -160,8 +351,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -173,15 +368,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -223,10 +429,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -253,8 +630,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -262,8 +643,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -275,8 +660,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -284,8 +673,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -293,8 +686,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -304,8 +701,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -317,8 +718,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/angledLineThatIntersects.md

@@ -9,7 +9,7 @@ Draw an angled line that intersects with a given line.
 
 
 ```js
-angledLineThatIntersects(data: AngledLineThatIntersectsData, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+angledLineThatIntersects(data: AngledLineThatIntersectsData, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -18,7 +18,7 @@ angledLineThatIntersects(data: AngledLineThatIntersectsData, sketch_group: Sketc
 const exampleSketch = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
   |> lineTo([5, 10], %)
-  |> lineTo([-10, 10], %, "lineToIntersect")
+  |> lineTo([-10, 10], %, $lineToIntersect)
   |> lineTo([0, 20], %)
   |> angledLineThatIntersects({
        angle: 80,
@@ -40,7 +40,9 @@ const example = extrude(10, exampleSketch)
 	// The angle of the line.
 	angle: number,
 	// The tag of the line to intersect with.
-	intersectTag: string,
+	intersectTag: {
+	value: string,
+},
 	// The offset from the intersecting line.
 	offset: number,
 }
@@ -83,10 +85,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -113,8 +286,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -122,8 +299,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -135,8 +316,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -144,8 +329,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -153,8 +342,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -164,8 +357,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -177,15 +374,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -227,10 +435,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -257,8 +636,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -266,8 +649,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -279,8 +666,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -288,8 +679,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -297,8 +692,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -308,8 +707,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -321,8 +724,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/angledLineToX.md

@@ -9,7 +9,7 @@ Draw an angled line to a given x coordinate.
 
 
 ```js
-angledLineToX(data: AngledLineToData, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+angledLineToX(data: AngledLineToData, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -76,10 +76,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -106,8 +277,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -115,8 +290,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -128,8 +307,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -137,8 +320,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -146,8 +333,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -157,8 +348,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -170,15 +365,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -220,10 +426,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -250,8 +627,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -259,8 +640,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -272,8 +657,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -281,8 +670,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -290,8 +683,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -301,8 +698,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -314,8 +715,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/angledLineToY.md

@@ -9,7 +9,7 @@ Draw an angled line to a given y coordinate.
 
 
 ```js
-angledLineToY(data: AngledLineToData, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+angledLineToY(data: AngledLineToData, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -76,10 +76,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -106,8 +277,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -115,8 +290,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -128,8 +307,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -137,8 +320,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -146,8 +333,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -157,8 +348,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -170,15 +365,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -220,10 +426,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -250,8 +627,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -259,8 +640,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -272,8 +657,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -281,8 +670,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -290,8 +683,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -301,8 +698,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -314,8 +715,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/arc.md

@@ -9,7 +9,7 @@ Draw an arc.
 
 
 ```js
-arc(data: ArcData, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+arc(data: ArcData, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -87,10 +87,181 @@ const exampleSketch = startSketchOn('XZ')
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -117,8 +288,12 @@ const exampleSketch = startSketchOn('XZ')
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -126,8 +301,12 @@ const exampleSketch = startSketchOn('XZ')
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -139,8 +318,12 @@ const exampleSketch = startSketchOn('XZ')
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -148,8 +331,12 @@ const exampleSketch = startSketchOn('XZ')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -157,8 +344,12 @@ const exampleSketch = startSketchOn('XZ')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -168,8 +359,12 @@ const exampleSketch = startSketchOn('XZ')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -181,15 +376,26 @@ const exampleSketch = startSketchOn('XZ')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -231,10 +437,181 @@ const exampleSketch = startSketchOn('XZ')
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -261,8 +638,12 @@ const exampleSketch = startSketchOn('XZ')
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -270,8 +651,12 @@ const exampleSketch = startSketchOn('XZ')
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -283,8 +668,12 @@ const exampleSketch = startSketchOn('XZ')
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -292,8 +681,12 @@ const exampleSketch = startSketchOn('XZ')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -301,8 +694,12 @@ const exampleSketch = startSketchOn('XZ')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -312,8 +709,12 @@ const exampleSketch = startSketchOn('XZ')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -325,8 +726,12 @@ const exampleSketch = startSketchOn('XZ')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/bezierCurve.md

@@ -9,7 +9,7 @@ Draw a bezier curve.
 
 
 ```js
-bezierCurve(data: BezierData, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+bezierCurve(data: BezierData, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -82,10 +82,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -112,8 +283,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -121,8 +296,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -134,8 +313,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -143,8 +326,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -152,8 +339,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -163,8 +354,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -176,15 +371,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -226,10 +432,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -256,8 +633,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -265,8 +646,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -278,8 +663,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -287,8 +676,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -296,8 +689,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -307,8 +704,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -320,8 +721,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/chamfer.md

@@ -9,7 +9,7 @@ Create chamfers on tagged paths.
 
 
 ```js
-chamfer(data: ChamferData, extrude_group: ExtrudeGroup) -> ExtrudeGroup
+chamfer(data: ChamferData, extrude_group: ExtrudeGroup, tag?: TagDeclarator) -> ExtrudeGroup
 ```
 
 ### Examples
@@ -22,19 +22,19 @@ const chamferLength = 2
 
 const mountingPlateSketch = startSketchOn("XY")
   |> startProfileAt([-width / 2, -length / 2], %)
-  |> lineTo([width / 2, -length / 2], %, 'edge1')
-  |> lineTo([width / 2, length / 2], %, 'edge2')
-  |> lineTo([-width / 2, length / 2], %, 'edge3')
-  |> close(%, 'edge4')
+  |> lineTo([width / 2, -length / 2], %, $edge1)
+  |> lineTo([width / 2, length / 2], %, $edge2)
+  |> lineTo([-width / 2, length / 2], %, $edge3)
+  |> close(%, $edge4)
 
 const mountingPlate = extrude(thickness, mountingPlateSketch)
   |> chamfer({
        length: chamferLength,
        tags: [
-         getNextAdjacentEdge('edge1', %),
-         getNextAdjacentEdge('edge2', %),
-         getNextAdjacentEdge('edge3', %),
-         getNextAdjacentEdge('edge4', %)
+         getNextAdjacentEdge(edge1, %),
+         getNextAdjacentEdge(edge2, %),
+         getNextAdjacentEdge(edge3, %),
+         getNextAdjacentEdge(edge4, %)
        ]
      }, %)
 ```
@@ -50,7 +50,9 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	length: number,
 	// The tags of the paths you want to chamfer.
 	tags: [uuid |
-string],
+{
+	value: string,
+}],
 }
 ```
 * `extrude_group`: `ExtrudeGroup` - An extrude group is a collection of extrude surfaces. (REQUIRED)
@@ -58,16 +60,182 @@ string],
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -79,8 +247,12 @@ string],
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -88,8 +260,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -97,8 +273,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -108,8 +288,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -121,12 +305,17 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -135,10 +324,14 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -146,30 +339,24 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
+}
+```
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
 }
 ```
 
@@ -180,16 +367,182 @@ string],
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -201,8 +554,12 @@ string],
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -210,8 +567,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -219,8 +580,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -230,8 +595,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -243,12 +612,17 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -257,10 +631,14 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -268,30 +646,16 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 

docs/kcl/circle.md

@@ -9,7 +9,7 @@ Sketch a circle.
 
 
 ```js
-circle(center: [number], radius: number, tag?: String, sketch_surface_or_group: SketchSurfaceOrGroup) -> SketchGroup
+circle(center: [number], radius: number, sketch_surface_or_group: SketchSurfaceOrGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -41,7 +41,6 @@ const example = extrude(5, exampleSketch)
 
 * `center`: `[number]` (REQUIRED)
 * `radius`: `number` (REQUIRED)
-* `tag`: `String` (OPTIONAL)
 * `sketch_surface_or_group`: `SketchSurfaceOrGroup` - A sketch surface or a sketch group. (REQUIRED)
 ```js
 {
@@ -76,10 +75,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -138,10 +308,74 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -168,8 +402,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -177,8 +415,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -190,8 +432,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -199,8 +445,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -208,8 +458,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -219,8 +473,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -232,14 +490,26 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -281,10 +551,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -311,8 +752,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -320,8 +765,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -333,8 +782,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -342,8 +795,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -351,8 +808,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -362,8 +823,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -375,8 +840,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/close.md

@@ -9,7 +9,7 @@ Close the current sketch.
 
 
 ```js
-close(sketch_group: SketchGroup, tag?: String) -> SketchGroup
+close(sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -77,10 +77,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -107,8 +278,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -116,8 +291,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -129,8 +308,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -138,8 +321,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -147,8 +334,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -158,8 +349,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -171,15 +366,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -221,10 +427,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -251,8 +628,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -260,8 +641,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -273,8 +658,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -282,8 +671,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -291,8 +684,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -302,8 +699,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -315,8 +716,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/extrude.md

@@ -102,10 +102,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -132,8 +303,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -142,8 +317,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -155,8 +334,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -164,8 +347,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -173,8 +360,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -184,8 +375,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -197,8 +392,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
@@ -216,16 +415,182 @@ const example = extrude(10, exampleSketch)
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -237,8 +602,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -246,8 +615,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -255,8 +628,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -266,8 +643,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -279,12 +660,17 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	type: "extrudeGroup",
@@ -294,10 +680,14 @@ const example = extrude(10, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -305,30 +695,16 @@ const example = extrude(10, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 } |
 {
 	type: "extrudeGroups",

docs/kcl/fillet.md

@@ -22,19 +22,19 @@ const filletRadius = 2
 
 const mountingPlateSketch = startSketchOn("XY")
   |> startProfileAt([-width / 2, -length / 2], %)
-  |> lineTo([width / 2, -length / 2], %, 'edge1')
-  |> lineTo([width / 2, length / 2], %, 'edge2')
-  |> lineTo([-width / 2, length / 2], %, 'edge3')
-  |> close(%, 'edge4')
+  |> lineTo([width / 2, -length / 2], %, $edge1)
+  |> lineTo([width / 2, length / 2], %, $edge2)
+  |> lineTo([-width / 2, length / 2], %, $edge3)
+  |> close(%, $edge4)
 
 const mountingPlate = extrude(thickness, mountingPlateSketch)
   |> fillet({
        radius: filletRadius,
        tags: [
-         getNextAdjacentEdge('edge1', %),
-         getNextAdjacentEdge('edge2', %),
-         getNextAdjacentEdge('edge3', %),
-         getNextAdjacentEdge('edge4', %)
+         getNextAdjacentEdge(edge1, %),
+         getNextAdjacentEdge(edge2, %),
+         getNextAdjacentEdge(edge3, %),
+         getNextAdjacentEdge(edge4, %)
        ]
      }, %)
 ```
@@ -50,7 +50,9 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	radius: number,
 	// The tags of the paths you want to fillet.
 	tags: [uuid |
-string],
+{
+	value: string,
+}],
 }
 ```
 * `extrude_group`: `ExtrudeGroup` - An extrude group is a collection of extrude surfaces. (REQUIRED)
@@ -58,16 +60,182 @@ string],
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -79,8 +247,12 @@ string],
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -88,8 +260,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -97,8 +273,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -108,8 +288,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -121,12 +305,17 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -135,10 +324,14 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -146,30 +339,16 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 
@@ -180,16 +359,182 @@ string],
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -201,8 +546,12 @@ string],
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -210,8 +559,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -219,8 +572,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -230,8 +587,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -243,12 +604,17 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -257,10 +623,14 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -268,30 +638,16 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 

docs/kcl/getEdge.md

@@ -9,7 +9,7 @@ Get an edge on a 3D solid.
 
 
 ```js
-getEdge(tag: String, extrude_group: ExtrudeGroup) -> Uuid
+getEdge(tag: TagIdentifier, extrude_group: ExtrudeGroup) -> Uuid
 ```
 
 ### Examples
@@ -17,7 +17,7 @@ getEdge(tag: String, extrude_group: ExtrudeGroup) -> Uuid
 ```js
 const box = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
-  |> line([0, 10], %, 'revolveAxis')
+  |> line([0, 10], %, $revolveAxis)
   |> line([10, 0], %)
   |> line([0, -10], %)
   |> close(%)
@@ -30,7 +30,7 @@ const revolution = startSketchOn(box, "revolveAxis")
   |> line([0, -10], %)
   |> close(%)
   |> revolve({
-       axis: getEdge('revolveAxis', box),
+       axis: getEdge(revolveAxis, box),
        angle: 90
      }, %)
 ```
@@ -39,22 +39,193 @@ const revolution = startSketchOn(box, "revolveAxis")
 
 ### Arguments
 
-* `tag`: `String` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
+```js
+{
+	value: string,
+}
+```
 * `extrude_group`: `ExtrudeGroup` - An extrude group is a collection of extrude surfaces. (REQUIRED)
 ```js
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -66,8 +237,12 @@ const revolution = startSketchOn(box, "revolveAxis")
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -75,8 +250,12 @@ const revolution = startSketchOn(box, "revolveAxis")
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -84,8 +263,12 @@ const revolution = startSketchOn(box, "revolveAxis")
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -95,8 +278,12 @@ const revolution = startSketchOn(box, "revolveAxis")
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -108,12 +295,17 @@ const revolution = startSketchOn(box, "revolveAxis")
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -122,10 +314,14 @@ const revolution = startSketchOn(box, "revolveAxis")
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -133,30 +329,16 @@ const revolution = startSketchOn(box, "revolveAxis")
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 

docs/kcl/getNextAdjacentEdge.md

@@ -9,7 +9,7 @@ Get the next adjacent edge to the edge given.
 
 
 ```js
-getNextAdjacentEdge(tag: String, extrude_group: ExtrudeGroup) -> Uuid
+getNextAdjacentEdge(tag: TagIdentifier, extrude_group: ExtrudeGroup) -> Uuid
 ```
 
 ### Examples
@@ -21,15 +21,13 @@ const exampleSketch = startSketchOn('XZ')
   |> angledLine({ angle: 60, length: 10 }, %)
   |> angledLine({ angle: 120, length: 10 }, %)
   |> line([-10, 0], %)
-  |> angledLine({ angle: 240, length: 10 }, %, 'referenceEdge')
+  |> angledLine({ angle: 240, length: 10 }, %, $referenceEdge)
   |> close(%)
 
 const example = extrude(5, exampleSketch)
   |> fillet({
        radius: 3,
-       tags: [
-         getNextAdjacentEdge("referenceEdge", %)
-       ]
+       tags: [getNextAdjacentEdge(referenceEdge, %)]
      }, %)
 ```
 
@@ -37,22 +35,193 @@ const example = extrude(5, exampleSketch)
 
 ### Arguments
 
-* `tag`: `String` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
+```js
+{
+	value: string,
+}
+```
 * `extrude_group`: `ExtrudeGroup` - An extrude group is a collection of extrude surfaces. (REQUIRED)
 ```js
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -64,8 +233,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -73,8 +246,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -82,8 +259,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -93,8 +274,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -106,12 +291,17 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -120,10 +310,14 @@ const example = extrude(5, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -131,30 +325,16 @@ const example = extrude(5, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 

docs/kcl/getOppositeEdge.md

@@ -9,7 +9,7 @@ Get the opposite edge to the edge given.
 
 
 ```js
-getOppositeEdge(tag: String, extrude_group: ExtrudeGroup) -> Uuid
+getOppositeEdge(tag: TagIdentifier, extrude_group: ExtrudeGroup) -> Uuid
 ```
 
 ### Examples
@@ -21,13 +21,13 @@ const exampleSketch = startSketchOn('XZ')
   |> angledLine({ angle: 60, length: 10 }, %)
   |> angledLine({ angle: 120, length: 10 }, %)
   |> line([-10, 0], %)
-  |> angledLine({ angle: 240, length: 10 }, %, 'referenceEdge')
+  |> angledLine({ angle: 240, length: 10 }, %, $referenceEdge)
   |> close(%)
 
 const example = extrude(5, exampleSketch)
   |> fillet({
        radius: 3,
-       tags: [getOppositeEdge("referenceEdge", %)]
+       tags: [getOppositeEdge(referenceEdge, %)]
      }, %)
 ```
 
@@ -35,22 +35,193 @@ const example = extrude(5, exampleSketch)
 
 ### Arguments
 
-* `tag`: `String` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
+```js
+{
+	value: string,
+}
+```
 * `extrude_group`: `ExtrudeGroup` - An extrude group is a collection of extrude surfaces. (REQUIRED)
 ```js
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -62,8 +233,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -71,8 +246,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -80,8 +259,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -91,8 +274,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -104,12 +291,17 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -118,10 +310,14 @@ const example = extrude(5, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -129,30 +325,16 @@ const example = extrude(5, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 

docs/kcl/getPreviousAdjacentEdge.md

@@ -9,7 +9,7 @@ Get the previous adjacent edge to the edge given.
 
 
 ```js
-getPreviousAdjacentEdge(tag: String, extrude_group: ExtrudeGroup) -> Uuid
+getPreviousAdjacentEdge(tag: TagIdentifier, extrude_group: ExtrudeGroup) -> Uuid
 ```
 
 ### Examples
@@ -21,14 +21,14 @@ const exampleSketch = startSketchOn('XZ')
   |> angledLine({ angle: 60, length: 10 }, %)
   |> angledLine({ angle: 120, length: 10 }, %)
   |> line([-10, 0], %)
-  |> angledLine({ angle: 240, length: 10 }, %, 'referenceEdge')
+  |> angledLine({ angle: 240, length: 10 }, %, $referenceEdge)
   |> close(%)
 
 const example = extrude(5, exampleSketch)
   |> fillet({
        radius: 3,
        tags: [
-         getPreviousAdjacentEdge("referenceEdge", %)
+         getPreviousAdjacentEdge(referenceEdge, %)
        ]
      }, %)
 ```
@@ -37,22 +37,193 @@ const example = extrude(5, exampleSketch)
 
 ### Arguments
 
-* `tag`: `String` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
+```js
+{
+	value: string,
+}
+```
 * `extrude_group`: `ExtrudeGroup` - An extrude group is a collection of extrude surfaces. (REQUIRED)
 ```js
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -64,8 +235,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -73,8 +248,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -82,8 +261,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -93,8 +276,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -106,12 +293,17 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -120,10 +312,14 @@ const example = extrude(5, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -131,30 +327,16 @@ const example = extrude(5, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 

docs/kcl/helix.md

@@ -48,16 +48,182 @@ const part001 = startSketchOn('XY')
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -69,8 +235,12 @@ const part001 = startSketchOn('XY')
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -78,8 +248,12 @@ const part001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -87,8 +261,12 @@ const part001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -98,8 +276,12 @@ const part001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -111,12 +293,17 @@ const part001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -125,10 +312,14 @@ const part001 = startSketchOn('XY')
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -136,30 +327,16 @@ const part001 = startSketchOn('XY')
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 
@@ -170,16 +347,182 @@ const part001 = startSketchOn('XY')
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -191,8 +534,12 @@ const part001 = startSketchOn('XY')
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -200,8 +547,12 @@ const part001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -209,8 +560,12 @@ const part001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -220,8 +575,12 @@ const part001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -233,12 +592,17 @@ const part001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -247,10 +611,14 @@ const part001 = startSketchOn('XY')
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -258,30 +626,16 @@ const part001 = startSketchOn('XY')
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 

docs/kcl/hole.md

@@ -88,10 +88,181 @@ const example = extrude(1, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -118,8 +289,12 @@ const example = extrude(1, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -128,8 +303,12 @@ const example = extrude(1, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -141,8 +320,12 @@ const example = extrude(1, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -150,8 +333,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -159,8 +346,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -170,8 +361,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -183,8 +378,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
@@ -232,10 +431,181 @@ const example = extrude(1, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -262,8 +632,12 @@ const example = extrude(1, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -271,8 +645,12 @@ const example = extrude(1, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -284,8 +662,12 @@ const example = extrude(1, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -293,8 +675,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -302,8 +688,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -313,8 +703,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -326,8 +720,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
@@ -375,10 +773,181 @@ const example = extrude(1, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -405,8 +974,12 @@ const example = extrude(1, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -414,8 +987,12 @@ const example = extrude(1, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -427,8 +1004,12 @@ const example = extrude(1, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -436,8 +1017,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -445,8 +1030,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -456,8 +1045,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -469,8 +1062,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/lastSegX.md

@@ -68,10 +68,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -98,8 +269,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -107,8 +282,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -120,8 +299,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -129,8 +312,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -138,8 +325,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -149,8 +340,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -162,8 +357,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/lastSegY.md

@@ -68,10 +68,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -98,8 +269,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -107,8 +282,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -120,8 +299,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -129,8 +312,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -138,8 +325,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -149,8 +340,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -162,8 +357,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/line.md

@@ -9,7 +9,7 @@ Draw a line.
 
 
 ```js
-line(delta: [number], sketch_group: SketchGroup, tag?: String) -> SketchGroup
+line(delta: [number], sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -81,10 +81,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -111,8 +282,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -120,8 +295,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -133,8 +312,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -142,8 +325,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -151,8 +338,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -162,8 +353,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -175,15 +370,26 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -225,10 +431,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -255,8 +632,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -264,8 +645,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -277,8 +662,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -286,8 +675,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -295,8 +688,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -306,8 +703,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -319,8 +720,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/lineTo.md

@@ -9,7 +9,7 @@ Draw a line to a point.
 
 
 ```js
-lineTo(to: [number], sketch_group: SketchGroup, tag?: String) -> SketchGroup
+lineTo(to: [number], sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -68,10 +68,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -98,8 +269,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -107,8 +282,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -120,8 +299,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -129,8 +312,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -138,8 +325,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -149,8 +340,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -162,15 +357,26 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -212,10 +418,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -242,8 +619,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -251,8 +632,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -264,8 +649,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -273,8 +662,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -282,8 +675,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -293,8 +690,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -306,8 +707,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/patternCircular2d.md

@@ -86,10 +86,181 @@ const example = extrude(1, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -116,8 +287,12 @@ const example = extrude(1, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -126,8 +301,12 @@ const example = extrude(1, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -139,8 +318,12 @@ const example = extrude(1, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -148,8 +331,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -157,8 +344,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -168,8 +359,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -181,8 +376,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/patternCircular3d.md

@@ -52,16 +52,182 @@ const example = extrude(-5, exampleSketch)
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -73,8 +239,12 @@ const example = extrude(-5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -82,8 +252,12 @@ const example = extrude(-5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -91,8 +265,12 @@ const example = extrude(-5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -102,8 +280,12 @@ const example = extrude(-5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -115,12 +297,17 @@ const example = extrude(-5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	type: "extrudeGroup",
@@ -130,10 +317,14 @@ const example = extrude(-5, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -141,30 +332,16 @@ const example = extrude(-5, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 } |
 {
 	type: "extrudeGroups",

docs/kcl/patternLinear2d.md

@@ -79,10 +79,181 @@ const example = extrude(1, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -109,8 +280,12 @@ const example = extrude(1, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -119,8 +294,12 @@ const example = extrude(1, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -132,8 +311,12 @@ const example = extrude(1, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -141,8 +324,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -150,8 +337,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -161,8 +352,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -174,8 +369,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/patternLinear3d.md

@@ -50,16 +50,182 @@ const example = extrude(1, exampleSketch)
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -71,8 +237,12 @@ const example = extrude(1, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -80,8 +250,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -89,8 +263,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -100,8 +278,12 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -113,12 +295,17 @@ const example = extrude(1, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	type: "extrudeGroup",
@@ -128,10 +315,14 @@ const example = extrude(1, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -139,30 +330,16 @@ const example = extrude(1, exampleSketch)
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 } |
 {
 	type: "extrudeGroups",

docs/kcl/profileStart.md

@@ -17,9 +17,9 @@ profileStart(sketch_group: SketchGroup) -> [number]
 ```js
 const sketch001 = startSketchOn('XY')
   |> startProfileAt([5, 2], %)
-  |> angledLine({ angle: 120, length: 50 }, %, 'seg01')
+  |> angledLine({ angle: 120, length: 50 }, %, $seg01)
   |> angledLine({
-       angle: segAng('seg01', %) + 120,
+       angle: segAng(seg01, %) + 120,
        length: 50
      }, %)
   |> lineTo(profileStart(%), %)
@@ -69,10 +69,181 @@ const sketch001 = startSketchOn('XY')
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -99,8 +270,12 @@ const sketch001 = startSketchOn('XY')
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -108,8 +283,12 @@ const sketch001 = startSketchOn('XY')
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -121,8 +300,12 @@ const sketch001 = startSketchOn('XY')
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -130,8 +313,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -139,8 +326,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -150,8 +341,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -163,8 +358,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/profileStartX.md

@@ -64,10 +64,181 @@ const sketch001 = startSketchOn('XY')
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -94,8 +265,12 @@ const sketch001 = startSketchOn('XY')
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -103,8 +278,12 @@ const sketch001 = startSketchOn('XY')
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -116,8 +295,12 @@ const sketch001 = startSketchOn('XY')
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -125,8 +308,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -134,8 +321,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -145,8 +336,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -158,8 +353,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/profileStartY.md

@@ -63,10 +63,181 @@ const sketch001 = startSketchOn('XY')
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -93,8 +264,12 @@ const sketch001 = startSketchOn('XY')
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -102,8 +277,12 @@ const sketch001 = startSketchOn('XY')
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -115,8 +294,12 @@ const sketch001 = startSketchOn('XY')
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -124,8 +307,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -133,8 +320,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -144,8 +335,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -157,8 +352,12 @@ const sketch001 = startSketchOn('XY')
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/revolve.md

@@ -99,7 +99,7 @@ const box = startSketchOn('XY')
   |> startProfileAt([0, 0], %)
   |> line([0, 20], %)
   |> line([20, 0], %)
-  |> line([0, -20], %, 'revolveAxis')
+  |> line([0, -20], %, $revolveAxis)
   |> close(%)
   |> extrude(20, %)
 
@@ -107,7 +107,7 @@ const sketch001 = startSketchOn(box, "END")
   |> circle([10, 10], 4, %)
   |> revolve({
        angle: 90,
-       axis: getOppositeEdge('revolveAxis', box)
+       axis: getOppositeEdge(revolveAxis, box)
      }, %)
 ```
 
@@ -156,7 +156,9 @@ const part001 = revolve({
 },
 } |
 uuid |
-string,
+{
+	value: string,
+},
 }
 ```
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
@@ -197,10 +199,181 @@ string,
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -227,8 +400,12 @@ string,
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -236,8 +413,12 @@ string,
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -249,8 +430,12 @@ string,
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -258,8 +443,12 @@ string,
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -267,8 +456,12 @@ string,
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -278,8 +471,12 @@ string,
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -291,8 +488,12 @@ string,
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
@@ -307,16 +508,182 @@ string,
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -328,8 +695,12 @@ string,
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -337,8 +708,12 @@ string,
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -346,8 +721,12 @@ string,
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -357,8 +736,12 @@ string,
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -370,12 +753,17 @@ string,
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -384,10 +772,14 @@ string,
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -395,30 +787,16 @@ string,
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 

docs/kcl/segAng.md

@@ -9,7 +9,7 @@ Returns the angle of the segment.
 
 
 ```js
-segAng(segment_name: string, sketch_group: SketchGroup) -> number
+segAng(segment_name: TagIdentifier, sketch_group: SketchGroup) -> number
 ```
 
 ### Examples
@@ -18,11 +18,11 @@ segAng(segment_name: string, sketch_group: SketchGroup) -> number
 const exampleSketch = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
   |> line([10, 0], %)
-  |> line([5, 10], %, 'seg01')
+  |> line([5, 10], %, $seg01)
   |> line([-10, 0], %)
-  |> angledLine([segAng('seg01', %), 10], %)
+  |> angledLine([segAng(seg01, %), 10], %)
   |> line([-10, 0], %)
-  |> angledLine([segAng('seg01', %), -15], %)
+  |> angledLine([segAng(seg01, %), -15], %)
   |> close(%)
 
 const example = extrude(4, exampleSketch)
@@ -32,7 +32,12 @@ const example = extrude(4, exampleSketch)
 
 ### Arguments
 
-* `segment_name`: `string` (REQUIRED)
+* `segment_name`: `TagIdentifier` (REQUIRED)
+```js
+{
+	value: string,
+}
+```
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
@@ -71,10 +76,181 @@ const example = extrude(4, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -101,8 +277,12 @@ const example = extrude(4, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -110,8 +290,12 @@ const example = extrude(4, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -123,8 +307,12 @@ const example = extrude(4, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -132,8 +320,12 @@ const example = extrude(4, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -141,8 +333,12 @@ const example = extrude(4, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -152,8 +348,12 @@ const example = extrude(4, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -165,8 +365,12 @@ const example = extrude(4, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/segEndX.md

@@ -9,7 +9,7 @@ Returns the segment end of x.
 
 
 ```js
-segEndX(segment_name: string, sketch_group: SketchGroup) -> number
+segEndX(segment_name: TagIdentifier, sketch_group: SketchGroup) -> number
 ```
 
 ### Examples
@@ -17,9 +17,9 @@ segEndX(segment_name: string, sketch_group: SketchGroup) -> number
 ```js
 const exampleSketch = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
-  |> line([20, 0], %, "thing")
+  |> line([20, 0], %, $thing)
   |> line([0, 5], %)
-  |> line([segEndX("thing", %), 0], %)
+  |> line([segEndX(thing, %), 0], %)
   |> line([-20, 10], %)
   |> close(%)
 
@@ -30,7 +30,12 @@ const example = extrude(5, exampleSketch)
 
 ### Arguments
 
-* `segment_name`: `string` (REQUIRED)
+* `segment_name`: `TagIdentifier` (REQUIRED)
+```js
+{
+	value: string,
+}
+```
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
@@ -69,10 +74,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -99,8 +275,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -108,8 +288,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -121,8 +305,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -130,8 +318,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -139,8 +331,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -150,8 +346,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -163,8 +363,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/segEndY.md

@@ -9,7 +9,7 @@ Returns the segment end of y.
 
 
 ```js
-segEndY(segment_name: string, sketch_group: SketchGroup) -> number
+segEndY(segment_name: TagIdentifier, sketch_group: SketchGroup) -> number
 ```
 
 ### Examples
@@ -18,9 +18,9 @@ segEndY(segment_name: string, sketch_group: SketchGroup) -> number
 const exampleSketch = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
   |> line([20, 0], %)
-  |> line([0, 3], %, "thing")
+  |> line([0, 3], %, $thing)
   |> line([-10, 0], %)
-  |> line([0, segEndY("thing", %)], %)
+  |> line([0, segEndY(thing, %)], %)
   |> line([-10, 0], %)
   |> close(%)
 
@@ -31,7 +31,12 @@ const example = extrude(5, exampleSketch)
 
 ### Arguments
 
-* `segment_name`: `string` (REQUIRED)
+* `segment_name`: `TagIdentifier` (REQUIRED)
+```js
+{
+	value: string,
+}
+```
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
@@ -70,10 +75,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -100,8 +276,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -109,8 +289,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -122,8 +306,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -131,8 +319,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -140,8 +332,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -151,8 +347,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -164,8 +364,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/segLen.md

@@ -9,7 +9,7 @@ Returns the length of the segment.
 
 
 ```js
-segLen(segment_name: string, sketch_group: SketchGroup) -> number
+segLen(segment_name: TagIdentifier, sketch_group: SketchGroup) -> number
 ```
 
 ### Examples
@@ -17,12 +17,9 @@ segLen(segment_name: string, sketch_group: SketchGroup) -> number
 ```js
 const exampleSketch = startSketchOn("XZ")
   |> startProfileAt([0, 0], %)
-  |> angledLine({ angle: 60, length: 10 }, %, "thing")
+  |> angledLine({ angle: 60, length: 10 }, %, $thing)
   |> tangentialArc({ offset: -120, radius: 5 }, %)
-  |> angledLine({
-       angle: -60,
-       length: segLen("thing", %)
-     }, %)
+  |> angledLine({ angle: -60, length: segLen(thing, %) }, %)
   |> close(%)
 
 const example = extrude(5, exampleSketch)
@@ -32,7 +29,12 @@ const example = extrude(5, exampleSketch)
 
 ### Arguments
 
-* `segment_name`: `string` (REQUIRED)
+* `segment_name`: `TagIdentifier` (REQUIRED)
+```js
+{
+	value: string,
+}
+```
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
@@ -71,10 +73,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -101,8 +274,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -110,8 +287,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -123,8 +304,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -132,8 +317,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -141,8 +330,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -152,8 +345,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -165,8 +362,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/shell.md

@@ -36,7 +36,9 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 {
 	// The faces you want removed.
 	faces: ["start" | "end" |
-string],
+{
+	value: string,
+}],
 	// The thickness of the shell.
 	thickness: number,
 }
@@ -46,16 +48,182 @@ string],
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -67,8 +235,12 @@ string],
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -76,8 +248,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -85,8 +261,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -96,8 +276,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -109,12 +293,17 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -123,10 +312,14 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -134,30 +327,16 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 
@@ -168,16 +347,182 @@ string],
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: SketchGroup,
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -189,8 +534,12 @@ string],
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -198,8 +547,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -207,8 +560,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -218,8 +575,12 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -231,12 +592,17 @@ string],
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -245,10 +611,14 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -256,30 +626,16 @@ string],
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
 

docs/kcl/startProfileAt.md

@@ -9,7 +9,7 @@ Start a profile at a given point.
 
 
 ```js
-startProfileAt(to: [number], sketch_surface: SketchSurface, tag?: String) -> SketchGroup
+startProfileAt(to: [number], sketch_surface: SketchSurface, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -90,10 +90,238 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: ExtrudeGroup,
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -117,7 +345,14 @@ const example = extrude(5, exampleSketch)
 },
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -159,10 +394,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -189,8 +595,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -198,8 +608,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -211,8 +625,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -220,8 +638,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -229,8 +651,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -240,8 +666,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -253,8 +683,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/startSketchAt.md

@@ -94,10 +94,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -124,8 +295,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -133,8 +308,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -146,8 +325,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -155,8 +338,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -164,8 +351,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -175,8 +366,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -188,8 +383,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/startSketchOn.md

@@ -9,7 +9,7 @@ Start a sketch on a specific plane or face.
 
 
 ```js
-startSketchOn(data: SketchData, tag?: SketchOnFaceTag) -> SketchSurface
+startSketchOn(data: SketchData, tag?: FaceTag) -> SketchSurface
 ```
 
 ### Examples
@@ -49,7 +49,7 @@ const example003 = extrude(5, exampleSketch003)
 const exampleSketch = startSketchOn("XY")
   |> startProfileAt([0, 0], %)
   |> line([10, 0], %)
-  |> line([0, 10], %, 'sketchingFace')
+  |> line([0, 10], %, $sketchingFace)
   |> line([-10, 0], %)
   |> close(%)
 
@@ -60,7 +60,7 @@ const exampleSketch002 = startSketchOn(example, 'sketchingFace')
   |> line([8, 0], %)
   |> line([0, 8], %)
   |> line([-8, 0], %)
-  |> close(%, 'sketchingFace002')
+  |> close(%, $sketchingFace002)
 
 const example002 = extrude(10, exampleSketch002)
 
@@ -163,16 +163,118 @@ const a1 = startSketchOn({
 {
 	// The id of the extrusion end cap
 	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
 	// The height of the extrude group.
 	height: number,
 	// The id of the extrude group.
 	id: uuid,
-	// The sketch group paths.
-	sketchGroupValues: [{
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: ExtrudeGroup,
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -184,8 +286,12 @@ const a1 = startSketchOn({
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -193,8 +299,12 @@ const a1 = startSketchOn({
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -202,8 +312,12 @@ const a1 = startSketchOn({
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -213,8 +327,12 @@ const a1 = startSketchOn({
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -226,12 +344,17 @@ const a1 = startSketchOn({
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
+},
 	// The id of the extrusion start cap
 	startCapId: uuid,
 	// The extrude surfaces.
@@ -240,10 +363,14 @@ const a1 = startSketchOn({
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudePlane",
 } |
 {
@@ -251,36 +378,24 @@ const a1 = startSketchOn({
 	faceId: uuid,
 	// The id of the geometry.
 	id: uuid,
-	// The name.
-	name: string,
 	// The source range.
 	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "extrudeArc",
 }],
-	// The x-axis of the extrude group base plane in the 3D space
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The y-axis of the extrude group base plane in the 3D space
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis of the extrude group base plane in the 3D space
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
 }
 ```
-* `tag`: `SketchOnFaceTag` - A tag for sketch on face. (OPTIONAL)
+* `tag`: `FaceTag` - A tag for a face. (OPTIONAL)
 ```js
 "start" | "end" |
-string
+{
+	value: string,
+}
 ```
 
 ### Returns
@@ -319,10 +434,238 @@ string
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: {
+	// The id of the plane.
+	id: uuid,
+	// Origin of the plane.
+	origin: {
+	x: number,
+	y: number,
+	z: number,
+},
+	type: "plane",
+	// Type for a plane.
+	value: "XY" | "XZ" | "YZ" | "Custom",
+	// What should the plane’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the plane’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+} |
+{
+	// The extrude group the face is on.
+	extrudeGroup: ExtrudeGroup,
+	// The id of the face.
+	id: uuid,
+	type: "face",
+	// The tag of the face.
+	value: string,
+	// What should the face’s X axis be?
+	xAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// What should the face’s Y axis be?
+	yAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+	// The z-axis (normal).
+	zAxis: {
+	x: number,
+	y: number,
+	z: number,
+},
+},
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,

docs/kcl/tangentialArc.md

@@ -9,7 +9,7 @@ Draw an arc.
 
 
 ```js
-tangentialArc(data: TangentialArcData, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+tangentialArc(data: TangentialArcData, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -77,10 +77,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -107,8 +278,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -116,8 +291,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -129,8 +308,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -138,8 +321,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -147,8 +334,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -158,8 +349,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -171,15 +366,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -221,10 +427,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -251,8 +628,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -260,8 +641,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -273,8 +658,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -282,8 +671,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -291,8 +684,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -302,8 +699,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -315,8 +716,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/tangentialArcTo.md

@@ -9,7 +9,7 @@ Draw an arc.
 
 
 ```js
-tangentialArcTo(to: [number], sketch_group: SketchGroup, tag?: String) -> SketchGroup
+tangentialArcTo(to: [number], sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -68,10 +68,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -98,8 +269,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -107,8 +282,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -120,8 +299,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -129,8 +312,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -138,8 +325,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -149,8 +340,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -162,15 +357,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -212,10 +418,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -242,8 +619,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -251,8 +632,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -264,8 +649,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -273,8 +662,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -282,8 +675,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -293,8 +690,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -306,8 +707,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/xLine.md

@@ -9,7 +9,7 @@ Draw a line on the x-axis.
 
 
 ```js
-xLine(length: number, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+xLine(length: number, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -71,10 +71,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -101,8 +272,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -110,8 +285,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -123,8 +302,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -132,8 +315,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -141,8 +328,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -152,8 +343,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -165,15 +360,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -215,10 +421,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -245,8 +622,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -254,8 +635,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -267,8 +652,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -276,8 +665,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -285,8 +678,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -296,8 +693,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -309,8 +710,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/xLineTo.md

@@ -9,7 +9,7 @@ Draw a line to a point on the x-axis.
 
 
 ```js
-xLineTo(to: number, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+xLineTo(to: number, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -71,10 +71,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -101,8 +272,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -110,8 +285,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -123,8 +302,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -132,8 +315,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -141,8 +328,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -152,8 +343,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -165,15 +360,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -215,10 +421,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -245,8 +622,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -254,8 +635,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -267,8 +652,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -276,8 +665,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -285,8 +678,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -296,8 +693,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -309,8 +710,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/yLine.md

@@ -9,7 +9,7 @@ Draw a line on the y-axis.
 
 
 ```js
-yLine(length: number, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+yLine(length: number, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -69,10 +69,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -99,8 +270,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -108,8 +283,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -121,8 +300,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -130,8 +313,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -139,8 +326,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -150,8 +341,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -163,15 +358,26 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -213,10 +419,181 @@ const example = extrude(10, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -243,8 +620,12 @@ const example = extrude(10, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -252,8 +633,12 @@ const example = extrude(10, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -265,8 +650,12 @@ const example = extrude(10, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -274,8 +663,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -283,8 +676,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -294,8 +691,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -307,8 +708,12 @@ const example = extrude(10, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

docs/kcl/yLineTo.md

@@ -9,7 +9,7 @@ Draw a line to a point on the y-axis.
 
 
 ```js
-yLineTo(to: number, sketch_group: SketchGroup, tag?: String) -> SketchGroup
+yLineTo(to: number, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
 ```
 
 ### Examples
@@ -67,10 +67,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -97,8 +268,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -106,8 +281,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -119,8 +298,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -128,8 +311,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -137,8 +324,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -148,8 +339,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -161,15 +356,26 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",
 }],
 }
 ```
-* `tag`: `String` (OPTIONAL)
+* `tag`: `TagDeclarator` (OPTIONAL)
+```js
+{
+	end: number,
+	start: number,
+	value: string,
+}
+```
 
 ### Returns
 
@@ -211,10 +417,181 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
+	// The extrude group the face is on.
+	extrudeGroup: {
+	// The id of the extrusion end cap
+	endCapId: uuid,
+	// Chamfers or fillets on this extrude group.
+	filletOrChamfers: [{
+	// The engine id of the edge to fillet.
+	edge_id: uuid,
+	// The id of the engine command that called this fillet.
+	id: uuid,
+	radius: number,
+	type: "fillet",
+} |
+{
+	// The engine id of the edge to chamfer.
+	edge_id: uuid,
+	// The id of the engine command that called this chamfer.
+	id: uuid,
+	length: number,
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+}],
+	// The height of the extrude group.
+	height: number,
+	// The id of the extrude group.
+	id: uuid,
+	// The sketch group.
+	sketchGroup: {
+	// The id of the sketch group.
+	id: uuid,
+	// What the sketch is on (can be a plane or a face).
+	on: SketchSurface,
+	// The starting path.
+	start: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The paths in the sketch group.
+	value: [{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "ToPoint",
+} |
+{
+	// arc's direction
+	ccw: string,
+	// the arc's center
+	center: [number, number],
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArcTo",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "TangentialArc",
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Horizontal",
+	// The x coordinate.
+	x: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "AngledLineTo",
+	// The x coordinate.
+	x: number,
+	// The y coordinate.
+	y: number,
+} |
+{
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+	type: "Base",
+}],
+},
+	// The id of the extrusion start cap
+	startCapId: uuid,
+	// The extrude surfaces.
+	value: [{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+}],
+},
 	// The id of the face.
 	id: uuid,
-	// The original sketch group id of the object we are sketching on.
-	sketchGroupId: uuid,
 	type: "face",
 	// The tag of the face.
 	value: string,
@@ -241,8 +618,12 @@ const example = extrude(5, exampleSketch)
 	start: {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 },
@@ -250,8 +631,12 @@ const example = extrude(5, exampleSketch)
 	value: [{
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "ToPoint",
@@ -263,8 +648,12 @@ const example = extrude(5, exampleSketch)
 	center: [number, number],
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArcTo",
@@ -272,8 +661,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "TangentialArc",
@@ -281,8 +674,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Horizontal",
@@ -292,8 +689,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "AngledLineTo",
@@ -305,8 +706,12 @@ const example = extrude(5, exampleSketch)
 {
 	// The from point.
 	from: [number, number],
-	// The name of the path.
-	name: string,
+	// The tag of the path.
+	tag: {
+	end: number,
+	start: number,
+	value: string,
+},
 	// The to point.
 	to: [number, number],
 	type: "Base",

e2e/playwright/test-utils.ts

@@ -8,6 +8,13 @@ import { Protocol } from 'playwright-core/types/protocol'
 import type { Models } from '@kittycad/lib'
 import { APP_NAME } from 'lib/constants'
 
+type TestColor = [number, number, number]
+export const TEST_COLORS = {
+  WHITE: [249, 249, 249] as TestColor,
+  YELLOW: [255, 255, 0] as TestColor,
+  BLUE: [0, 0, 255] as TestColor,
+} as const
+
 async function waitForPageLoad(page: Page) {
   // wait for 'Loading stream...' spinner
   await page.getByTestId('loading-stream').waitFor()
@@ -107,19 +114,45 @@ export const wiggleMove = async (
   dist: number,
   ang: number,
   amplitude: number,
-  freq: number
+  freq: number,
+  locator?: string
 ) => {
   const tau = Math.PI * 2
   const deg = tau / 360
   const step = dist / steps
   for (let i = 0, j = 0; i < dist; i += step, j += 1) {
+    if (locator) {
+      const isElVis = await page.locator(locator).isVisible()
+      if (isElVis) return
+    }
     const [x1, y1] = [0, Math.sin((tau / steps) * j * freq) * amplitude]
     const [x2, y2] = [
       Math.cos(-ang * deg) * i - Math.sin(-ang * deg) * y1,
       Math.sin(-ang * deg) * i + Math.cos(-ang * deg) * y1,
     ]
     const [xr, yr] = [x2, y2]
-    await page.mouse.move(x + xr, y + yr, { steps: 2 })
+    await page.mouse.move(x + xr, y + yr, { steps: 5 })
+  }
+}
+
+export const circleMove = async (
+  page: any,
+  x: number,
+  y: number,
+  steps: number,
+  diameter: number,
+  locator?: string
+) => {
+  const tau = Math.PI * 2
+  const step = tau / steps
+  for (let i = 0; i < tau; i += step) {
+    if (locator) {
+      const isElVis = await page.locator(locator).isVisible()
+      if (isElVis) return
+    }
+    const [x1, y1] = [Math.cos(i) * diameter, Math.sin(i) * diameter]
+    const [xr, yr] = [x1, y1]
+    await page.mouse.move(x + xr, y + yr, { steps: 5 })
   }
 }
 
@@ -144,11 +177,11 @@ export const getMovementUtils = (opts: any) => {
 
   // Make it easier to click around from center ("click [from] zero zero")
   const click00 = (x: number, y: number) =>
-    opts.page.mouse.click(opts.center.x + x, opts.center.y + y)
+    opts.page.mouse.click(opts.center.x + x, opts.center.y + y, { delay: 100 })
 
   // Relative clicker, must keep state
   let last = { x: 0, y: 0 }
-  const click00r = (x?: number, y?: number) => {
+  const click00r = async (x?: number, y?: number) => {
     // reset relative coordinates when anything is undefined
     if (x === undefined || y === undefined) {
       last.x = 0
@@ -156,12 +189,19 @@ export const getMovementUtils = (opts: any) => {
       return
     }
 
-    const ret = click00(last.x + x, last.y + y)
+    await circleMove(
+      opts.page,
+      opts.center.x + last.x + x,
+      opts.center.y + last.y + y,
+      10,
+      10
+    )
+    await click00(last.x + x, last.y + y)
     last.x += x
     last.y += y
 
     // Returns the new absolute coordinate if you need it.
-    return ret.then(() => [last.x, last.y])
+    return [last.x, last.y]
   }
 
   return { toSU, click00r }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "untitled-app",
-  "version": "0.22.4",
+  "version": "0.22.6",
   "private": true,
   "dependencies": {
     "@codemirror/autocomplete": "^6.16.0",
@@ -12,7 +12,6 @@
     "@headlessui/tailwindcss": "^0.2.0",
     "@kittycad/lib": "^0.0.67",
     "@lezer/javascript": "^1.4.9",
-    "@open-rpc/client-js": "^1.8.1",
     "@react-hook/resize-observer": "^2.0.1",
     "@replit/codemirror-interact": "^6.3.1",
     "@tauri-apps/api": "2.0.0-beta.12",
@@ -37,11 +36,12 @@
     "crypto-js": "^4.2.0",
     "debounce-promise": "^3.1.2",
     "decamelize": "^6.0.0",
+    "eslint-plugin-suggest-no-throw": "^1.0.0",
     "formik": "^2.4.6",
     "fuse.js": "^7.0.0",
     "html2canvas-pro": "^1.4.3",
     "http-server": "^14.1.1",
-    "json-rpc-2.0": "^1.6.0",
+    "json-rpc-2.0": "^1.7.0",
     "jszip": "^3.10.1",
     "node-fetch": "^3.3.2",
     "re-resizable": "^6.9.11",
@@ -61,7 +61,8 @@
     "ua-parser-js": "^1.0.37",
     "uuid": "^9.0.1",
     "vitest": "^1.6.0",
-    "vscode-jsonrpc": "^8.2.1",
+    "vscode-languageclient": "^9.0.1",
+    "vscode-languageserver": "^9.0.1",
     "vscode-languageserver-protocol": "^3.17.5",
     "wasm-pack": "^0.12.1",
     "web-vitals": "^3.5.2",
@@ -120,7 +121,7 @@
     "@babel/plugin-proposal-private-property-in-object": "^7.21.11",
     "@babel/preset-env": "^7.24.3",
     "@iarna/toml": "^2.2.5",
-    "@playwright/test": "^1.43.1",
+    "@playwright/test": "^1.44.1",
     "@tauri-apps/cli": "^2.0.0-beta.13",
     "@types/crypto-js": "^4.2.2",
     "@types/debounce-promise": "^3.1.9",

playwright.config.ts

@@ -12,13 +12,13 @@ import { defineConfig, devices } from '@playwright/test'
 export default defineConfig({
   testDir: './e2e/playwright',
   /* Run tests in files in parallel */
-  fullyParallel: false,
+  fullyParallel: true,
   /* Fail the build on CI if you accidentally left test.only in the source code. */
   forbidOnly: !!process.env.CI,
   /* Retry on CI only */
   retries: process.env.CI ? 3 : 0,
   /* Different amount of parallelism on CI and local. */
-  workers: process.env.CI ? 1 : 1,
+  workers: process.env.CI ? 4 : 4,
   /* Reporter to use. See https://playwright.dev/docs/test-reporters */
   reporter: 'html',
   /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */

src-tauri/Cargo.toml

@@ -20,7 +20,7 @@ kittycad = "0.3.5"
 log = "0.4.21"
 oauth2 = "4.4.2"
 serde_json = "1.0"
-tauri = { version = "2.0.0-beta.22", features = [ "devtools", "unstable"] }
+tauri = { version = "2.0.0-beta.15", features = [ "devtools", "unstable"] }
 tauri-plugin-cli = { version = "2.0.0-beta.3" }
 tauri-plugin-deep-link = { version = "2.0.0-beta.3" }
 tauri-plugin-dialog = { version = "2.0.0-beta.6" }

src-tauri/tauri.conf.json

@@ -63,17 +63,16 @@
       "subcommands": {}
     },
     "deep-link": {
-      "mobile": [],
-      "desktop": {
-        "schemes": [
-          "app.zoo.dev"
-        ]
-      }
+      "domains": [
+        {
+          "host": "app.zoo.dev"
+        }
+      ]
     },
     "shell": {
       "open": true
     }
   },
   "productName": "Zoo Modeling App",
-  "version": "0.22.4"
+  "version": "0.22.6"
 }

src/Toolbar.tsx

@@ -339,7 +339,7 @@ export function Toolbar({
                 bgClassName,
               }}
             >
-              Constrain
+              Constraints
             </ActionButtonDropdown>
           )}
         {state.matches('idle') && (

src/clientSideScene/ClientSideSceneComp.tsx

@@ -44,6 +44,7 @@ import {
   removeSingleConstraintInfo,
 } from 'lang/modifyAst'
 import { ActionButton } from 'components/ActionButton'
+import { err, trap } from 'lib/trap'
 
 function useShouldHideScene(): { hideClient: boolean; hideServer: boolean } {
   const [isCamMoving, setIsCamMoving] = useState(false)
@@ -184,11 +185,14 @@ const Overlay = ({
   let xAlignment = overlay.angle < 0 ? '0%' : '-100%'
   let yAlignment = overlay.angle < -90 || overlay.angle >= 90 ? '0%' : '-100%'
 
-  const callExpression = getNodeFromPath<CallExpression>(
+  const _node1 = getNodeFromPath<CallExpression>(
     kclManager.ast,
     overlay.pathToNode,
     'CallExpression'
-  ).node
+  )
+  if (err(_node1)) return
+  const callExpression = _node1.node
+
   const constraints = getConstraintInfo(
     callExpression,
     codeManager.code,
@@ -219,6 +223,7 @@ const Overlay = ({
         data-testid="segment-overlay"
         data-path-to-node={pathToNodeString}
         data-overlay-index={overlayIndex}
+        data-overlay-visible={shouldShow}
         data-overlay-angle={overlay.angle}
         className="pointer-events-auto absolute w-0 h-0"
         style={{
@@ -227,6 +232,7 @@ const Overlay = ({
       ></div>
       {shouldShow && (
         <div
+          data-overlay-toolbar-index={overlayIndex}
           className={`px-0 pointer-events-auto absolute flex gap-1`}
           style={{
             transform: `translate3d(calc(${
@@ -352,7 +358,7 @@ export async function deleteSegment({
   pathToNode: PathToNode
   sketchDetails: SketchDetails | null
 }) {
-  let modifiedAst: Program = kclManager.ast
+  let modifiedAst: Program | Error = kclManager.ast
   const dependentRanges = findUsesOfTagInPipe(modifiedAst, pathToNode)
 
   const shouldContinueSegDelete = dependentRanges.length
@@ -363,6 +369,7 @@ export async function deleteSegment({
     : true
 
   if (!shouldContinueSegDelete) return
+
   modifiedAst = deleteSegmentFromPipeExpression(
     dependentRanges,
     modifiedAst,
@@ -370,9 +377,12 @@ export async function deleteSegment({
     codeManager.code,
     pathToNode
   )
+  if (err(modifiedAst)) return Promise.reject(modifiedAst)
 
   const newCode = recast(modifiedAst)
   modifiedAst = parse(newCode)
+  if (err(modifiedAst)) return Promise.reject(modifiedAst)
+
   const testExecute = await executeAst({
     ast: modifiedAst,
     useFakeExecutor: true,
@@ -384,13 +394,15 @@ export async function deleteSegment({
   }
 
   if (!sketchDetails) return
-  sceneEntitiesManager.updateAstAndRejigSketch(
-    sketchDetails.sketchPathToNode,
+  await sceneEntitiesManager.updateAstAndRejigSketch(
+    pathToNode,
     modifiedAst,
     sketchDetails.zAxis,
     sketchDetails.yAxis,
     sketchDetails.origin
   )
+
+  // Now 'Set sketchDetails' is called with the modified pathToNode
 }
 
 const SegmentMenu = ({
@@ -535,10 +547,13 @@ const ConstraintSymbol = ({
   const implicitDesc =
     varNameMap[_type as LineInputsType]?.implicitConstraintDesc
 
-  const node = useMemo(
-    () => getNodeFromPath<Value>(kclManager.ast, pathToNode).node,
+  const _node = useMemo(
+    () => getNodeFromPath<Value>(kclManager.ast, pathToNode),
     [kclManager.ast, pathToNode]
   )
+  if (err(_node)) return
+  const node = _node.node
+
   const range: SourceRange = node ? [node.start, node.end] : [0, 0]
 
   if (_type === 'intersectionTag') return null
@@ -576,12 +591,17 @@ const ConstraintSymbol = ({
             })
           } else if (isConstrained) {
             try {
-              const shallowPath = getNodeFromPath<CallExpression>(
-                parse(recast(kclManager.ast)),
+              const parsed = parse(recast(kclManager.ast))
+              if (trap(parsed)) return Promise.reject(parsed)
+              const _node1 = getNodeFromPath<CallExpression>(
+                parsed,
                 pathToNode,
                 'CallExpression',
                 true
-              ).shallowPath
+              )
+              if (trap(_node1)) return Promise.reject(_node1)
+              const shallowPath = _node1.shallowPath
+
               const input = makeRemoveSingleConstraintInput(
                 argPosition,
                 shallowPath

src/clientSideScene/sceneEntities.ts

@@ -73,7 +73,7 @@ import {
   changeSketchArguments,
   updateStartProfileAtArgs,
 } from 'lang/std/sketch'
-import { normaliseAngle, roundOff, throttle } from 'lib/utils'
+import { isOverlap, normaliseAngle, roundOff, throttle } from 'lib/utils'
 import {
   createArrayExpression,
   createCallExpressionStdLib,
@@ -83,6 +83,7 @@ import {
   findUniqueName,
 } from 'lang/modifyAst'
 import {
+  Selections,
   getEventForSegmentSelection,
   sendSelectEventToEngine,
 } from 'lib/selections'
@@ -100,6 +101,7 @@ import {
   updateRectangleSketch,
 } from 'lib/rectangleTool'
 import { getThemeColorForThreeJs } from 'lib/theme'
+import { err, trap } from 'lib/trap'
 
 type DraftSegment = 'line' | 'tangentialArcTo'
 
@@ -300,6 +302,7 @@ export class SceneEntities {
     position,
     maybeModdedAst,
     draftExpressionsIndices,
+    selectionRanges,
   }: {
     sketchPathToNode: PathToNode
     maybeModdedAst: Program
@@ -307,6 +310,7 @@ export class SceneEntities {
     forward: [number, number, number]
     up: [number, number, number]
     position?: [number, number, number]
+    selectionRanges?: Selections
   }): Promise<{
     truncatedAst: Program
     programMemoryOverride: ProgramMemory
@@ -315,8 +319,14 @@ export class SceneEntities {
   }> {
     this.createIntersectionPlane()
 
+    const prepared = this.prepareTruncatedMemoryAndAst(
+      sketchPathToNode || [],
+      maybeModdedAst
+    )
+    if (err(prepared)) return Promise.reject(prepared)
     const { truncatedAst, programMemoryOverride, variableDeclarationName } =
-      this.prepareTruncatedMemoryAndAst(sketchPathToNode || [], maybeModdedAst)
+      prepared
+
     const { programMemory } = await executeAst({
       ast: truncatedAst,
       useFakeExecutor: true,
@@ -328,6 +338,8 @@ export class SceneEntities {
       ast: maybeModdedAst,
       programMemory,
     })
+    if (err(sketchGroup)) return Promise.reject(sketchGroup)
+
     if (!Array.isArray(sketchGroup?.value))
       return {
         truncatedAst,
@@ -396,12 +408,21 @@ export class SceneEntities {
         draftExpressionsIndices &&
         index <= draftExpressionsIndices.end &&
         index >= draftExpressionsIndices.start
+      const isSelected = selectionRanges?.codeBasedSelections.some(
+        (selection) => {
+          return isOverlap(selection.range, segment.__geoMeta.sourceRange)
+        }
+      )
+
       let seg
-      const callExpName = getNodeFromPath<CallExpression>(
+      const _node1 = getNodeFromPath<CallExpression>(
         maybeModdedAst,
         segPathToNode,
         'CallExpression'
-      )?.node?.callee?.name
+      )
+      if (err(_node1)) return
+      const callExpName = _node1.node?.callee?.name
+
       if (segment.type === 'TangentialArcTo') {
         seg = tangentialArcToSegment({
           prevSegment: sketchGroup.value[index - 1],
@@ -413,6 +434,7 @@ export class SceneEntities {
           scale: factor,
           texture: sceneInfra.extraSegmentTexture,
           theme: sceneInfra._theme,
+          isSelected,
         })
         callbacks.push(
           this.updateTangentialArcToSegment({
@@ -434,6 +456,7 @@ export class SceneEntities {
           callExpName,
           texture: sceneInfra.extraSegmentTexture,
           theme: sceneInfra._theme,
+          isSelected,
         })
         callbacks.push(
           this.updateStraightSegment({
@@ -478,12 +501,14 @@ export class SceneEntities {
   }
   updateAstAndRejigSketch = async (
     sketchPathToNode: PathToNode,
-    modifiedAst: Program,
+    modifiedAst: Program | Error,
     forward: [number, number, number],
     up: [number, number, number],
     origin: [number, number, number]
   ) => {
-    await kclManager.updateAst(modifiedAst, false)
+    if (err(modifiedAst)) return modifiedAst
+
+    const nextAst = await kclManager.updateAst(modifiedAst, false)
     await this.tearDownSketch({ removeAxis: false })
     sceneInfra.resetMouseListeners()
     await this.setupSketch({
@@ -491,7 +516,7 @@ export class SceneEntities {
       forward,
       up,
       position: origin,
-      maybeModdedAst: kclManager.ast,
+      maybeModdedAst: nextAst.newAst,
     })
     this.setupSketchIdleCallbacks({
       forward,
@@ -499,6 +524,7 @@ export class SceneEntities {
       position: origin,
       pathToNode: sketchPathToNode,
     })
+    return nextAst
   }
   setUpDraftSegment = async (
     sketchPathToNode: PathToNode,
@@ -510,12 +536,15 @@ export class SceneEntities {
   ) => {
     const _ast = JSON.parse(JSON.stringify(kclManager.ast))
 
+    const _node1 = getNodeFromPath<VariableDeclaration>(
+      _ast,
+      sketchPathToNode || [],
+      'VariableDeclaration'
+    )
+    if (trap(_node1)) return Promise.reject(_node1)
     const variableDeclarationName =
-      getNodeFromPath<VariableDeclaration>(
-        _ast,
-        sketchPathToNode || [],
-        'VariableDeclaration'
-      )?.node?.declarations?.[0]?.id?.name || ''
+      _node1.node?.declarations?.[0]?.id?.name || ''
+
     const sg = kclManager.programMemory.root[
       variableDeclarationName
     ] as SketchGroup
@@ -531,7 +560,9 @@ export class SceneEntities {
       fnName: segmentName,
       pathToNode: sketchPathToNode,
     })
+    if (trap(mod)) return Promise.reject(mod)
     const modifiedAst = parse(recast(mod.modifiedAst))
+    if (trap(modifiedAst)) return Promise.reject(modifiedAst)
 
     const draftExpressionsIndices = { start: index, end: index }
 
@@ -582,14 +613,16 @@ export class SceneEntities {
               ),
             ],
           })
+          if (trap(modifiedAst)) return Promise.reject(modifiedAst)
           modifiedAst = addCloseToPipe({
             node: modifiedAst,
             programMemory: kclManager.programMemory,
             pathToNode: sketchPathToNode,
           })
+          if (trap(modifiedAst)) return Promise.reject(modifiedAst)
         } else if (intersection2d) {
           const lastSegment = sketchGroup.value.slice(-1)[0]
-          modifiedAst = addNewSketchLn({
+          const tmp = addNewSketchLn({
             node: kclManager.ast,
             programMemory: kclManager.programMemory,
             to: [intersection2d.x, intersection2d.y],
@@ -599,7 +632,10 @@ export class SceneEntities {
                 ? 'tangentialArcTo'
                 : 'line',
             pathToNode: sketchPathToNode,
-          }).modifiedAst
+          })
+          if (trap(tmp)) return Promise.reject(tmp)
+          modifiedAst = tmp.modifiedAst
+          if (trap(modifiedAst)) return Promise.reject(modifiedAst)
         } else {
           // return early as we didn't modify the ast
           return
@@ -658,12 +694,14 @@ export class SceneEntities {
   ) => {
     let _ast = JSON.parse(JSON.stringify(kclManager.ast))
 
+    const _node1 = getNodeFromPath<VariableDeclaration>(
+      _ast,
+      sketchPathToNode || [],
+      'VariableDeclaration'
+    )
+    if (trap(_node1)) return Promise.reject(_node1)
     const variableDeclarationName =
-      getNodeFromPath<VariableDeclaration>(
-        _ast,
-        sketchPathToNode || [],
-        'VariableDeclaration'
-      )?.node?.declarations?.[0]?.id?.name || ''
+      _node1.node?.declarations?.[0]?.id?.name || ''
 
     const tags: [string, string, string] = [
       findUniqueName(_ast, 'rectangleSegmentA'),
@@ -671,11 +709,13 @@ export class SceneEntities {
       findUniqueName(_ast, 'rectangleSegmentC'),
     ]
 
-    const startSketchOn = getNodeFromPath<VariableDeclaration>(
+    const _node2 = getNodeFromPath<VariableDeclaration>(
       _ast,
       sketchPathToNode || [],
       'VariableDeclaration'
-    )?.node?.declarations
+    )
+    if (trap(_node2)) return Promise.reject(_node2)
+    const startSketchOn = _node2.node?.declarations
 
     const startSketchOnInit = startSketchOn?.[0]?.init
     startSketchOn[0].init = createPipeExpression([
@@ -700,11 +740,13 @@ export class SceneEntities {
         const pathToNodeTwo = JSON.parse(JSON.stringify(sketchPathToNode))
         pathToNodeTwo[1][0] = 0
 
-        const sketchInit = getNodeFromPath<VariableDeclaration>(
+        const _node = getNodeFromPath<VariableDeclaration>(
           truncatedAst,
           pathToNodeTwo || [],
           'VariableDeclaration'
-        )?.node?.declarations?.[0]?.init
+        )
+        if (trap(_node)) return Promise.reject(_node)
+        const sketchInit = _node.node?.declarations?.[0]?.init
 
         const x = (args.intersectionPoint.twoD.x || 0) - rectangleOrigin[0]
         const y = (args.intersectionPoint.twoD.y || 0) - rectangleOrigin[1]
@@ -746,11 +788,13 @@ export class SceneEntities {
         const x = roundOff((cornerPoint.x || 0) - rectangleOrigin[0])
         const y = roundOff((cornerPoint.y || 0) - rectangleOrigin[1])
 
-        const sketchInit = getNodeFromPath<VariableDeclaration>(
+        const _node = getNodeFromPath<VariableDeclaration>(
           _ast,
           sketchPathToNode || [],
           'VariableDeclaration'
-        )?.node?.declarations?.[0]?.init
+        )
+        if (trap(_node)) return Promise.reject(_node)
+        const sketchInit = _node.node?.declarations?.[0]?.init
 
         if (sketchInit.type === 'PipeExpression') {
           updateRectangleSketch(sketchInit, x, y, tags[0])
@@ -846,6 +890,7 @@ export class SceneEntities {
             ast: kclManager.ast,
             programMemory: kclManager.programMemory,
           })
+          if (trap(sketchGroup)) return
 
           const pipeIndex = pathToNode[pathToNodeIndex + 1][0] as number
           if (addingNewSegmentStatus === 'nothing') {
@@ -863,6 +908,8 @@ export class SceneEntities {
               spliceBetween: true,
             })
             addingNewSegmentStatus = 'pending'
+            if (trap(mod)) return
+
             await kclManager.executeAstMock(mod.modifiedAst)
             await this.tearDownSketch({ removeAxis: false })
             this.setupSketch({
@@ -971,17 +1018,22 @@ export class SceneEntities {
     const to: [number, number] = [intersection2d.x, intersection2d.y]
     let modifiedAst = draftInfo ? draftInfo.truncatedAst : { ...kclManager.ast }
 
-    const node = getNodeFromPath<CallExpression>(
+    const _node = getNodeFromPath<CallExpression>(
       modifiedAst,
       pathToNode,
       'CallExpression'
-    ).node
+    )
+    if (trap(_node)) return
+    const node = _node.node
+
     if (node.type !== 'CallExpression') return
 
-    let modded: {
-      modifiedAst: Program
-      pathToNode: PathToNode
-    }
+    let modded:
+      | {
+          modifiedAst: Program
+          pathToNode: PathToNode
+        }
+      | Error
     if (group.name === PROFILE_START) {
       modded = updateStartProfileAtArgs({
         node: modifiedAst,
@@ -999,14 +1051,18 @@ export class SceneEntities {
         from
       )
     }
+    if (trap(modded)) return
 
     modifiedAst = modded.modifiedAst
+    const info = draftInfo
+      ? draftInfo
+      : this.prepareTruncatedMemoryAndAst(pathToNode || [])
+    if (trap(info, { suppress: true })) return
     const { truncatedAst, programMemoryOverride, variableDeclarationName } =
-      draftInfo
-        ? draftInfo
-        : this.prepareTruncatedMemoryAndAst(sketchPathToNode || [])
+      info
     ;(async () => {
       const code = recast(modifiedAst)
+      if (trap(code)) return
       if (!draftInfo)
         // don't want to mod the user's code yet as they have't committed to the change yet
         // plus this would be the truncated ast being recast, it would be wrong
@@ -1388,11 +1444,12 @@ export class SceneEntities {
       },
       onClick: async (args) => {
         const { streamDimensions } = useStore.getState()
-        const { entity_id, ...rest } = await sendSelectEventToEngine(
+        const { entity_id } = await sendSelectEventToEngine(
           args?.mouseEvent,
           document.getElementById('video-stream') as HTMLVideoElement,
           streamDimensions
         )
+
         let _entity_id = entity_id
         if (!_entity_id) return
         if (
@@ -1532,11 +1589,14 @@ export class SceneEntities {
         ])
         if (parent?.userData?.pathToNode) {
           const updatedAst = parse(recast(kclManager.ast))
-          const node = getNodeFromPath<CallExpression>(
+          if (trap(updatedAst)) return
+          const _node = getNodeFromPath<CallExpression>(
             updatedAst,
             parent.userData.pathToNode,
             'CallExpression'
-          ).node
+          )
+          if (trap(_node, { suppress: true })) return
+          const node = _node.node
           editorManager.setHighlightRange([node.start, node.end])
           const yellow = 0xffff00
           colorSegment(selected, yellow)
@@ -1651,20 +1711,23 @@ function prepareTruncatedMemoryAndAst(
   ast: Program,
   programMemory: ProgramMemory,
   draftSegment?: DraftSegment
-): {
-  truncatedAst: Program
-  programMemoryOverride: ProgramMemory
-  variableDeclarationName: string
-} {
+):
+  | {
+      truncatedAst: Program
+      programMemoryOverride: ProgramMemory
+      variableDeclarationName: string
+    }
+  | Error {
   const bodyIndex = Number(sketchPathToNode?.[1]?.[0]) || 0
   const _ast = JSON.parse(JSON.stringify(ast))
 
-  const variableDeclarationName =
-    getNodeFromPath<VariableDeclaration>(
-      _ast,
-      sketchPathToNode || [],
-      'VariableDeclaration'
-    )?.node?.declarations?.[0]?.id?.name || ''
+  const _node = getNodeFromPath<VariableDeclaration>(
+    _ast,
+    sketchPathToNode || [],
+    'VariableDeclaration'
+  )
+  if (err(_node)) return _node
+  const variableDeclarationName = _node.node?.declarations?.[0]?.id?.name || ''
   const lastSeg = (
     programMemory.root[variableDeclarationName] as SketchGroup
   ).value.slice(-1)[0]
@@ -1692,6 +1755,8 @@ function prepareTruncatedMemoryAndAst(
     // update source ranges to section we just added.
     // hacks like this wouldn't be needed if the AST put pathToNode info in memory/sketchGroup segments
     const updatedSrcRangeAst = parse(recast(_ast)) // get source ranges correct since unfortunately we still rely on them
+    if (err(updatedSrcRangeAst)) return updatedSrcRangeAst
+
     const lastPipeItem = (
       (updatedSrcRangeAst.body[bodyIndex] as VariableDeclaration)
         .declarations[0].init as PipeExpression
@@ -1715,7 +1780,34 @@ function prepareTruncatedMemoryAndAst(
     ..._ast,
     body: [JSON.parse(JSON.stringify(_ast.body[bodyIndex]))],
   }
-  const programMemoryOverride: ProgramMemory = programMemoryInit()
+  const programMemoryOverride = programMemoryInit()
+  if (err(programMemoryOverride)) return programMemoryOverride
+
+  // Grab all the TagDeclarators and TagIdentifiers from memory.
+  let start = _node.node.start
+  for (const key in programMemory.root) {
+    const value = programMemory.root[key]
+    if (!('__meta' in value)) {
+      continue
+    }
+    if (
+      value.__meta === undefined ||
+      value.__meta.length === 0 ||
+      value.__meta[0].sourceRange === undefined
+    ) {
+      continue
+    }
+
+    if (value.__meta[0].sourceRange[0] >= start) {
+      // We only want things before our start point.
+      continue
+    }
+
+    if (value.type === 'TagIdentifier') {
+      programMemoryOverride.root[key] = JSON.parse(JSON.stringify(value))
+    }
+  }
+
   for (let i = 0; i < bodyIndex; i++) {
     const node = _ast.body[i]
     if (node.type !== 'VariableDeclaration') {
@@ -1756,13 +1848,19 @@ export function sketchGroupFromPathToNode({
   pathToNode: PathToNode
   ast: Program
   programMemory: ProgramMemory
-}): SketchGroup {
-  const varDec = getNodeFromPath<VariableDeclarator>(
+}): SketchGroup | Error {
+  const _varDec = getNodeFromPath<VariableDeclarator>(
     kclManager.ast,
     pathToNode,
     'VariableDeclarator'
-  ).node
-  return programMemory.root[varDec?.id?.name || ''] as SketchGroup
+  )
+  if (err(_varDec)) return _varDec
+  const varDec = _varDec.node
+  const result = programMemory.root[varDec?.id?.name || '']
+  if (result?.type === 'ExtrudeGroup') {
+    return result.sketchGroup
+  }
+  return result as SketchGroup
 }
 
 function colorSegment(object: any, color: number) {
@@ -1792,13 +1890,15 @@ function colorSegment(object: any, color: number) {
 export function getSketchQuaternion(
   sketchPathToNode: PathToNode,
   sketchNormalBackUp: [number, number, number] | null
-): Quaternion {
+): Quaternion | Error {
   const sketchGroup = sketchGroupFromPathToNode({
     pathToNode: sketchPathToNode,
     ast: kclManager.ast,
     programMemory: kclManager.programMemory,
   })
+  if (err(sketchGroup)) return sketchGroup
   const zAxis = sketchGroup?.on.zAxis || sketchNormalBackUp
+
   return getQuaternionFromZAxis(massageFormats(zAxis))
 }
 export async function getSketchOrientationDetails(
@@ -1812,6 +1912,8 @@ export async function getSketchOrientationDetails(
     ast: kclManager.ast,
     programMemory: kclManager.programMemory,
   })
+  if (err(sketchGroup)) return Promise.reject(sketchGroup)
+
   if (sketchGroup.on.type === 'plane') {
     const zAxis = sketchGroup?.on.zAxis
     return {
@@ -1829,11 +1931,12 @@ export async function getSketchOrientationDetails(
       },
     }
   }
+
   if (sketchGroup.on.type === 'face') {
     const faceInfo = await getFaceDetails(sketchGroup.on.id)
 
     if (!faceInfo?.origin || !faceInfo?.z_axis || !faceInfo?.y_axis)
-      throw new Error('faceInfo')
+      return Promise.reject('face info')
     const { z_axis, y_axis, origin } = faceInfo
     const quaternion = quaternionFromUpNForward(
       new Vector3(y_axis.x, y_axis.y, y_axis.z),
@@ -1850,7 +1953,7 @@ export async function getSketchOrientationDetails(
       },
     }
   }
-  throw new Error(
+  return Promise.reject(
     'sketchGroup.on.type not recognized, has a new type been added?'
   )
 }

src/clientSideScene/segments.ts

@@ -45,18 +45,21 @@ export function profileStart({
   pathToNode,
   scale = 1,
   theme,
+  isSelected,
 }: {
   from: Coords2d
   id: string
   pathToNode: PathToNode
   scale?: number
   theme: Themes
+  isSelected?: boolean
 }) {
   const group = new Group()
 
   const geometry = new BoxGeometry(12, 12, 12) // in pixels scaled later
   const baseColor = getThemeColorForThreeJs(theme)
-  const body = new MeshBasicMaterial({ color: baseColor })
+  const color = isSelected ? 0x0000ff : baseColor
+  const body = new MeshBasicMaterial({ color })
   const mesh = new Mesh(geometry, body)
 
   group.add(mesh)
@@ -66,7 +69,8 @@ export function profileStart({
     id,
     from,
     pathToNode,
-    isSelected: false,
+    isSelected,
+    baseColor,
   }
   group.name = PROFILE_START
   group.position.set(from[0], from[1], 0)
@@ -84,6 +88,7 @@ export function straightSegment({
   callExpName,
   texture,
   theme,
+  isSelected = false,
 }: {
   from: Coords2d
   to: Coords2d
@@ -94,6 +99,7 @@ export function straightSegment({
   callExpName: string
   texture: Texture
   theme: Themes
+  isSelected?: boolean
 }): Group {
   const group = new Group()
 
@@ -119,7 +125,8 @@ export function straightSegment({
 
   const baseColor =
     callExpName === 'close' ? 0x444444 : getThemeColorForThreeJs(theme)
-  const body = new MeshBasicMaterial({ color: baseColor })
+  const color = isSelected ? 0x0000ff : baseColor
+  const body = new MeshBasicMaterial({ color })
   const mesh = new Mesh(geometry, body)
   mesh.userData.type = isDraftSegment
     ? STRAIGHT_SEGMENT_DASH
@@ -132,7 +139,7 @@ export function straightSegment({
     from,
     to,
     pathToNode,
-    isSelected: false,
+    isSelected,
     callExpName,
     baseColor,
   }
@@ -141,7 +148,7 @@ export function straightSegment({
   const length = Math.sqrt(
     Math.pow(to[0] - from[0], 2) + Math.pow(to[1] - from[1], 2)
   )
-  const arrowGroup = createArrowhead(scale, theme)
+  const arrowGroup = createArrowhead(scale, theme, color)
   arrowGroup.position.set(to[0], to[1], 0)
   const dir = new Vector3()
     .subVectors(new Vector3(to[0], to[1], 0), new Vector3(from[0], from[1], 0))
@@ -169,9 +176,10 @@ export function straightSegment({
   return group
 }
 
-function createArrowhead(scale = 1, theme: Themes): Group {
+function createArrowhead(scale = 1, theme: Themes, color?: number): Group {
+  const baseColor = getThemeColorForThreeJs(theme)
   const arrowMaterial = new MeshBasicMaterial({
-    color: getThemeColorForThreeJs(theme),
+    color: color || baseColor,
   })
   // specify the size of the geometry in pixels (i.e. cone height = 20px, cone radius = 4.5px)
   // we'll scale the group to the correct size later to match these sizes in screen space
@@ -232,6 +240,7 @@ export function tangentialArcToSegment({
   scale = 1,
   texture,
   theme,
+  isSelected,
 }: {
   prevSegment: SketchGroup['value'][number]
   from: Coords2d
@@ -242,6 +251,7 @@ export function tangentialArcToSegment({
   scale?: number
   texture: Texture
   theme: Themes
+  isSelected?: boolean
 }): Group {
   const group = new Group()
 
@@ -273,7 +283,8 @@ export function tangentialArcToSegment({
   })
 
   const baseColor = getThemeColorForThreeJs(theme)
-  const body = new MeshBasicMaterial({ color: baseColor })
+  const color = isSelected ? 0x0000ff : baseColor
+  const body = new MeshBasicMaterial({ color })
   const mesh = new Mesh(geometry, body)
   mesh.userData.type = isDraftSegment
     ? TANGENTIAL_ARC_TO__SEGMENT_DASH
@@ -286,12 +297,12 @@ export function tangentialArcToSegment({
     to,
     prevSegment,
     pathToNode,
-    isSelected: false,
+    isSelected,
     baseColor,
   }
   group.name = TANGENTIAL_ARC_TO_SEGMENT
 
-  const arrowGroup = createArrowhead(scale, theme)
+  const arrowGroup = createArrowhead(scale, theme, color)
   arrowGroup.position.set(to[0], to[1], 0)
   const arrowheadAngle = endAngle + (Math.PI / 2) * (ccw ? 1 : -1)
   arrowGroup.quaternion.setFromUnitVectors(

src/components/AstExplorer.tsx

@@ -2,6 +2,7 @@ import { useModelingContext } from 'hooks/useModelingContext'
 import { editorManager, kclManager } from 'lib/singletons'
 import { getNodeFromPath, getNodePathFromSourceRange } from 'lang/queryAst'
 import { useEffect, useRef, useState } from 'react'
+import { trap } from 'lib/trap'
 
 export function AstExplorer() {
   const { context } = useModelingContext()
@@ -10,9 +11,12 @@ export function AstExplorer() {
     kclManager.ast,
     context.selectionRanges.codeBasedSelections?.[0]?.range
   )
-  const node = getNodeFromPath(kclManager.ast, pathToNode).node
   const [filterKeys, setFilterKeys] = useState<string[]>(['start', 'end'])
 
+  const _node = getNodeFromPath(kclManager.ast, pathToNode)
+  if (trap(_node)) return
+  const node = _node
+
   return (
     <div id="ast-explorer" className="relative">
       <div className="">

src/components/AvailableVarsHelpers.tsx

@@ -11,6 +11,7 @@ import { engineCommandManager, kclManager } from 'lib/singletons'
 import { useKclContext } from 'lang/KclProvider'
 import { useModelingContext } from 'hooks/useModelingContext'
 import { executeAst } from 'useStore'
+import { trap } from 'lib/trap'
 
 export const AvailableVars = ({
   onVarClick,
@@ -141,6 +142,7 @@ export function useCalc({
     try {
       const code = `const __result__ = ${value}`
       const ast = parse(code)
+      if (trap(ast)) return
       const _programMem: any = { root: {}, return: null }
       availableVarInfo.variables.forEach(({ key, value }) => {
         _programMem.root[key] = { type: 'userVal', value, __meta: [] }

src/components/CommandBar/CommandBar.tsx

@@ -24,7 +24,7 @@ export const CommandBar = () => {
   }, [pathname])
 
   // Hook up keyboard shortcuts
-  useHotkeyWrapper(['mod+k', 'mod+/'], () => {
+  useHotkeyWrapper(['mod+k', 'ctrl+c'], () => {
     if (commandBarState.context.commands.length === 0) return
     if (commandBarState.matches('Closed')) {
       commandBarSend({ type: 'Open' })

src/components/LspProvider.tsx

@@ -1,8 +1,13 @@
 import { LanguageServerClient } from 'editor/plugins/lsp'
 import type * as LSP from 'vscode-languageserver-protocol'
-import React, { createContext, useMemo, useEffect, useContext } from 'react'
-import { FromServer, IntoServer } from 'editor/plugins/lsp/codec'
-import Client from '../editor/plugins/lsp/client'
+import React, {
+  createContext,
+  useMemo,
+  useEffect,
+  useContext,
+  useState,
+} from 'react'
+import LspServerClient from '../editor/plugins/lsp/client'
 import { TEST, VITE_KC_API_BASE_URL } from 'env'
 import kclLanguage from 'editor/plugins/lsp/kcl/language'
 import { copilotPlugin } from 'editor/plugins/lsp/copilot'
@@ -13,9 +18,7 @@ import { LanguageSupport } from '@codemirror/language'
 import { useNavigate } from 'react-router-dom'
 import { paths } from 'lib/paths'
 import { FileEntry } from 'lib/types'
-import Worker from 'editor/plugins/lsp/worker.ts?worker'
 import {
-  LspWorkerEventType,
   KclWorkerOptions,
   CopilotWorkerOptions,
   LspWorker,
@@ -76,6 +79,8 @@ export const LspProvider = ({ children }: { children: React.ReactNode }) => {
     setIsCopilotLspServerReady: s.setIsCopilotLspServerReady,
     isStreamReady: s.isStreamReady,
   }))
+  const [isLspReady, setIsLspReady] = useState(false)
+  const [isCopilotReady, setIsCopilotReady] = useState(false)
 
   const {
     auth,
@@ -98,29 +103,23 @@ export const LspProvider = ({ children }: { children: React.ReactNode }) => {
       return { lspClient: null }
     }
 
-    const lspWorker = new Worker({ name: 'kcl' })
-    const initEvent: KclWorkerOptions = {
-      wasmUrl: wasmUrl(),
+    const options: KclWorkerOptions = {
       token: token,
       baseUnit: defaultUnit.current,
       apiBaseUrl: VITE_KC_API_BASE_URL,
+      callback: () => {
+        setIsLspReady(true)
+      },
+      wasmUrl: wasmUrl(),
     }
-    lspWorker.postMessage({
-      worker: LspWorker.Kcl,
-      eventType: LspWorkerEventType.Init,
-      eventData: initEvent,
+
+    const lsp = new LspServerClient({ worker: LspWorker.Kcl, options })
+    lsp.startServer()
+
+    const lspClient = new LanguageServerClient({
+      client: lsp,
+      name: LspWorker.Kcl,
     })
-    lspWorker.onmessage = function (e) {
-      fromServer.add(e.data)
-    }
-
-    const intoServer: IntoServer = new IntoServer(LspWorker.Kcl, lspWorker)
-    const fromServer: FromServer = FromServer.create()
-    const client = new Client(fromServer, intoServer)
-
-    setIsKclLspServerReady(true)
-
-    const lspClient = new LanguageServerClient({ client, name: LspWorker.Kcl })
     return { lspClient }
   }, [
     // We need a token for authenticating the server.
@@ -173,29 +172,19 @@ export const LspProvider = ({ children }: { children: React.ReactNode }) => {
       return { lspClient: null }
     }
 
-    const lspWorker = new Worker({ name: 'copilot' })
-    const initEvent: CopilotWorkerOptions = {
-      wasmUrl: wasmUrl(),
+    const options: CopilotWorkerOptions = {
       token: token,
       apiBaseUrl: VITE_KC_API_BASE_URL,
+      callback: () => {
+        setIsCopilotReady(true)
+      },
+      wasmUrl: wasmUrl(),
     }
-    lspWorker.postMessage({
-      worker: LspWorker.Copilot,
-      eventType: LspWorkerEventType.Init,
-      eventData: initEvent,
-    })
-    lspWorker.onmessage = function (e) {
-      fromServer.add(e.data)
-    }
-
-    const intoServer: IntoServer = new IntoServer(LspWorker.Copilot, lspWorker)
-    const fromServer: FromServer = FromServer.create()
-    const client = new Client(fromServer, intoServer)
-
-    setIsCopilotLspServerReady(true)
+    const lsp = new LspServerClient({ worker: LspWorker.Copilot, options })
+    lsp.startServer()
 
     const lspClient = new LanguageServerClient({
-      client,
+      client: lsp,
       name: LspWorker.Copilot,
     })
     return { lspClient }
@@ -230,6 +219,13 @@ export const LspProvider = ({ children }: { children: React.ReactNode }) => {
     lspClients.push(copilotLspClient)
   }
 
+  useEffect(() => {
+    setIsKclLspServerReady(isLspReady)
+  }, [isLspReady])
+  useEffect(() => {
+    setIsCopilotLspServerReady(isCopilotReady)
+  }, [isCopilotReady])
+
   const onProjectClose = (
     file: FileEntry | null,
     projectPath: string | null,

src/components/ModelingMachineProvider.tsx

@@ -29,7 +29,6 @@ import {
   applyConstraintAngleBetween,
 } from './Toolbar/SetAngleBetween'
 import { applyConstraintAngleLength } from './Toolbar/setAngleLength'
-import { pathMapToSelections } from 'lang/util'
 import { useStore } from 'useStore'
 import {
   Selections,
@@ -37,6 +36,7 @@ import {
   handleSelectionBatch,
   isSelectionLastLine,
   isSketchPipe,
+  updateSelections,
 } from 'lib/selections'
 import { applyConstraintIntersect } from './Toolbar/Intersect'
 import { applyConstraintAbsDistance } from './Toolbar/SetAbsDistance'
@@ -77,6 +77,7 @@ import { letEngineAnimateAndSyncCamAfter } from 'clientSideScene/CameraControls'
 import { getVarNameModal } from 'hooks/useToolbarGuards'
 import useHotkeyWrapper from 'lib/hotkeyWrapper'
 import { uuidv4 } from 'lib/utils'
+import { err, trap } from 'lib/trap'
 
 type MachineContext<T extends AnyStateMachine> = {
   state: StateFrom<T>
@@ -275,9 +276,9 @@ export const ModelingMachineProvider = ({
         ),
         'Set selection': assign(({ selectionRanges, sketchDetails }, event) => {
           const setSelections = event.data as SetSelections // this was needed for ts after adding 'Set selection' action to on done modal events
-          if (!editorManager.editorView) return {}
           const dispatchSelection = (selection?: EditorSelection) => {
             if (!selection) return // TODO less of hack for the below please
+            if (!editorManager.editorView) return
             editorManager.lastSelectionEvent = Date.now()
             setTimeout(() => {
               if (editorManager.editorView) {
@@ -459,12 +460,17 @@ export const ModelingMachineProvider = ({
 
           return canExtrudeSelection(selectionRanges)
         },
-        'Sketch is empty': ({ sketchDetails }) =>
-          getNodeFromPath<VariableDeclaration>(
+        'Sketch is empty': ({ sketchDetails }) => {
+          const node = getNodeFromPath<VariableDeclaration>(
             kclManager.ast,
             sketchDetails?.sketchPathToNode || [],
             'VariableDeclaration'
-          )?.node?.declarations?.[0]?.init.type !== 'PipeExpression',
+          )
+          // This should not be returning false, and it should be caught
+          // but we need to simulate old behavior to move on.
+          if (err(node)) return false
+          return node.node?.declarations?.[0]?.init.type !== 'PipeExpression'
+        },
         'Selection is on face': ({ selectionRanges }, { data }) => {
           if (data?.forceNewSketch) return false
           if (!isSingleCursorInPipe(selectionRanges, kclManager.ast))
@@ -507,15 +513,16 @@ export const ModelingMachineProvider = ({
         },
         'animate-to-face': async (_, { data }) => {
           if (data.type === 'extrudeFace') {
-            console.log('data', data)
-            const { modifiedAst, pathToNode: pathToNewSketchNode } =
-              sketchOnExtrudedFace(
-                kclManager.ast,
-                data.sketchPathToNode,
-                data.extrudePathToNode,
-                kclManager.programMemory,
-                data.cap
-              )
+            const sketched = sketchOnExtrudedFace(
+              kclManager.ast,
+              data.sketchPathToNode,
+              data.extrudePathToNode,
+              kclManager.programMemory,
+              data.cap
+            )
+            if (trap(sketched)) return Promise.reject(sketched)
+            const { modifiedAst, pathToNode: pathToNewSketchNode } = sketched
+
             await kclManager.executeAstMock(modifiedAst)
 
             await letEngineAnimateAndSyncCamAfter(
@@ -536,10 +543,12 @@ export const ModelingMachineProvider = ({
           )
           await kclManager.updateAst(modifiedAst, false)
           sceneInfra.camControls.syncDirection = 'clientToEngine'
+
           await letEngineAnimateAndSyncCamAfter(
             engineCommandManager,
             data.planeId
           )
+
           return {
             sketchPathToNode: pathToNode,
             zAxis: data.zAxis,
@@ -577,25 +586,29 @@ export const ModelingMachineProvider = ({
               selectionRanges,
             })
           const _modifiedAst = parse(recast(modifiedAst))
-          if (!sketchDetails) throw new Error('No sketch details')
+          if (!sketchDetails)
+            return Promise.reject(new Error('No sketch details'))
           const updatedPathToNode = updatePathToNodeFromMap(
             sketchDetails.sketchPathToNode,
             pathToNodeMap
           )
-          await sceneEntitiesManager.updateAstAndRejigSketch(
+          const updatedAst = await sceneEntitiesManager.updateAstAndRejigSketch(
             updatedPathToNode,
             _modifiedAst,
             sketchDetails.zAxis,
             sketchDetails.yAxis,
             sketchDetails.origin
           )
+          if (err(updatedAst)) return Promise.reject(updatedAst)
+          const selection = updateSelections(
+            pathToNodeMap,
+            selectionRanges,
+            updatedAst.newAst
+          )
+          if (err(selection)) return Promise.reject(selection)
           return {
             selectionType: 'completeSelection',
-            selection: pathMapToSelections(
-              kclManager.ast,
-              selectionRanges,
-              pathToNodeMap
-            ),
+            selection,
             updatedPathToNode,
           }
         },
@@ -609,25 +622,29 @@ export const ModelingMachineProvider = ({
               selectionRanges,
             })
           const _modifiedAst = parse(recast(modifiedAst))
-          if (!sketchDetails) throw new Error('No sketch details')
+          if (!sketchDetails)
+            return Promise.reject(new Error('No sketch details'))
           const updatedPathToNode = updatePathToNodeFromMap(
             sketchDetails.sketchPathToNode,
             pathToNodeMap
           )
-          await sceneEntitiesManager.updateAstAndRejigSketch(
+          const updatedAst = await sceneEntitiesManager.updateAstAndRejigSketch(
             updatedPathToNode,
             _modifiedAst,
             sketchDetails.zAxis,
             sketchDetails.yAxis,
             sketchDetails.origin
           )
+          if (err(updatedAst)) return Promise.reject(updatedAst)
+          const selection = updateSelections(
+            pathToNodeMap,
+            selectionRanges,
+            updatedAst.newAst
+          )
+          if (err(selection)) return Promise.reject(selection)
           return {
             selectionType: 'completeSelection',
-            selection: pathMapToSelections(
-              kclManager.ast,
-              selectionRanges,
-              pathToNodeMap
-            ),
+            selection,
             updatedPathToNode,
           }
         },
@@ -635,9 +652,11 @@ export const ModelingMachineProvider = ({
           selectionRanges,
           sketchDetails,
         }): Promise<SetSelections> => {
-          const { modifiedAst, pathToNodeMap } = await (angleBetweenInfo({
+          const info = angleBetweenInfo({
             selectionRanges,
-          }).enabled
+          })
+          if (err(info)) return Promise.reject(info)
+          const { modifiedAst, pathToNodeMap } = await (info.enabled
             ? applyConstraintAngleBetween({
                 selectionRanges,
               })
@@ -646,25 +665,31 @@ export const ModelingMachineProvider = ({
                 angleOrLength: 'setAngle',
               }))
           const _modifiedAst = parse(recast(modifiedAst))
-          if (!sketchDetails) throw new Error('No sketch details')
+          if (err(_modifiedAst)) return Promise.reject(_modifiedAst)
+
+          if (!sketchDetails)
+            return Promise.reject(new Error('No sketch details'))
           const updatedPathToNode = updatePathToNodeFromMap(
             sketchDetails.sketchPathToNode,
             pathToNodeMap
           )
-          await sceneEntitiesManager.updateAstAndRejigSketch(
+          const updatedAst = await sceneEntitiesManager.updateAstAndRejigSketch(
             updatedPathToNode,
             _modifiedAst,
             sketchDetails.zAxis,
             sketchDetails.yAxis,
             sketchDetails.origin
           )
+          if (err(updatedAst)) return Promise.reject(updatedAst)
+          const selection = updateSelections(
+            pathToNodeMap,
+            selectionRanges,
+            updatedAst.newAst
+          )
+          if (err(selection)) return Promise.reject(selection)
           return {
             selectionType: 'completeSelection',
-            selection: pathMapToSelections(
-              _modifiedAst,
-              selectionRanges,
-              pathToNodeMap
-            ),
+            selection,
             updatedPathToNode,
           }
         },
@@ -675,25 +700,29 @@ export const ModelingMachineProvider = ({
           const { modifiedAst, pathToNodeMap } =
             await applyConstraintAngleLength({ selectionRanges })
           const _modifiedAst = parse(recast(modifiedAst))
-          if (!sketchDetails) throw new Error('No sketch details')
+          if (!sketchDetails)
+            return Promise.reject(new Error('No sketch details'))
           const updatedPathToNode = updatePathToNodeFromMap(
             sketchDetails.sketchPathToNode,
             pathToNodeMap
           )
-          await sceneEntitiesManager.updateAstAndRejigSketch(
+          const updatedAst = await sceneEntitiesManager.updateAstAndRejigSketch(
             updatedPathToNode,
             _modifiedAst,
             sketchDetails.zAxis,
             sketchDetails.yAxis,
             sketchDetails.origin
           )
+          if (err(updatedAst)) return Promise.reject(updatedAst)
+          const selection = updateSelections(
+            pathToNodeMap,
+            selectionRanges,
+            updatedAst.newAst
+          )
+          if (err(selection)) return Promise.reject(selection)
           return {
             selectionType: 'completeSelection',
-            selection: pathMapToSelections(
-              kclManager.ast,
-              selectionRanges,
-              pathToNodeMap
-            ),
+            selection,
             updatedPathToNode,
           }
         },
@@ -707,25 +736,29 @@ export const ModelingMachineProvider = ({
             }
           )
           const _modifiedAst = parse(recast(modifiedAst))
-          if (!sketchDetails) throw new Error('No sketch details')
+          if (!sketchDetails)
+            return Promise.reject(new Error('No sketch details'))
           const updatedPathToNode = updatePathToNodeFromMap(
             sketchDetails.sketchPathToNode,
             pathToNodeMap
           )
-          await sceneEntitiesManager.updateAstAndRejigSketch(
+          const updatedAst = await sceneEntitiesManager.updateAstAndRejigSketch(
             updatedPathToNode,
             _modifiedAst,
             sketchDetails.zAxis,
             sketchDetails.yAxis,
             sketchDetails.origin
           )
+          if (err(updatedAst)) return Promise.reject(updatedAst)
+          const selection = updateSelections(
+            pathToNodeMap,
+            selectionRanges,
+            updatedAst.newAst
+          )
+          if (err(selection)) return Promise.reject(selection)
           return {
             selectionType: 'completeSelection',
-            selection: pathMapToSelections(
-              kclManager.ast,
-              selectionRanges,
-              pathToNodeMap
-            ),
+            selection,
             updatedPathToNode,
           }
         },
@@ -739,25 +772,29 @@ export const ModelingMachineProvider = ({
               selectionRanges,
             })
           const _modifiedAst = parse(recast(modifiedAst))
-          if (!sketchDetails) throw new Error('No sketch details')
+          if (!sketchDetails)
+            return Promise.reject(new Error('No sketch details'))
           const updatedPathToNode = updatePathToNodeFromMap(
             sketchDetails.sketchPathToNode,
             pathToNodeMap
           )
-          await sceneEntitiesManager.updateAstAndRejigSketch(
+          const updatedAst = await sceneEntitiesManager.updateAstAndRejigSketch(
             updatedPathToNode,
             _modifiedAst,
             sketchDetails.zAxis,
             sketchDetails.yAxis,
             sketchDetails.origin
           )
+          if (err(updatedAst)) return Promise.reject(updatedAst)
+          const selection = updateSelections(
+            pathToNodeMap,
+            selectionRanges,
+            updatedAst.newAst
+          )
+          if (err(selection)) return Promise.reject(selection)
           return {
             selectionType: 'completeSelection',
-            selection: pathMapToSelections(
-              kclManager.ast,
-              selectionRanges,
-              pathToNodeMap
-            ),
+            selection,
             updatedPathToNode,
           }
         },
@@ -771,48 +808,77 @@ export const ModelingMachineProvider = ({
               selectionRanges,
             })
           const _modifiedAst = parse(recast(modifiedAst))
-          if (!sketchDetails) throw new Error('No sketch details')
+          if (!sketchDetails)
+            return Promise.reject(new Error('No sketch details'))
           const updatedPathToNode = updatePathToNodeFromMap(
             sketchDetails.sketchPathToNode,
             pathToNodeMap
           )
-          await sceneEntitiesManager.updateAstAndRejigSketch(
+          const updatedAst = await sceneEntitiesManager.updateAstAndRejigSketch(
             updatedPathToNode,
             _modifiedAst,
             sketchDetails.zAxis,
             sketchDetails.yAxis,
             sketchDetails.origin
           )
+          if (err(updatedAst)) return Promise.reject(updatedAst)
+          const selection = updateSelections(
+            pathToNodeMap,
+            selectionRanges,
+            updatedAst.newAst
+          )
+          if (err(selection)) return Promise.reject(selection)
           return {
             selectionType: 'completeSelection',
-            selection: pathMapToSelections(
-              kclManager.ast,
-              selectionRanges,
-              pathToNodeMap
-            ),
+            selection,
             updatedPathToNode,
           }
         },
-        'Get convert to variable info': async ({ sketchDetails }, { data }) => {
-          if (!sketchDetails) return []
+        'Get convert to variable info': async (
+          { sketchDetails, selectionRanges },
+          { data }
+        ): Promise<SetSelections> => {
+          if (!sketchDetails)
+            return Promise.reject(new Error('No sketch details'))
           const { variableName } = await getVarNameModal({
             valueName: data.variableName || 'var',
           })
+          let parsed = parse(recast(kclManager.ast))
+          if (trap(parsed)) return Promise.reject(parsed)
+          parsed = parsed as Program
+
           const { modifiedAst: _modifiedAst, pathToReplacedNode } =
             moveValueIntoNewVariablePath(
-              parse(recast(kclManager.ast)),
+              parsed,
               kclManager.programMemory,
               data.pathToNode,
               variableName
             )
-          await sceneEntitiesManager.updateAstAndRejigSketch(
+          parsed = parse(recast(_modifiedAst))
+          if (trap(parsed)) return Promise.reject(parsed)
+          parsed = parsed as Program
+          if (!pathToReplacedNode)
+            return Promise.reject(new Error('No path to replaced node'))
+
+          const updatedAst = await sceneEntitiesManager.updateAstAndRejigSketch(
             pathToReplacedNode || [],
-            parse(recast(_modifiedAst)),
+            parsed,
             sketchDetails.zAxis,
             sketchDetails.yAxis,
             sketchDetails.origin
           )
-          return pathToReplacedNode || sketchDetails.sketchPathToNode
+          if (err(updatedAst)) return Promise.reject(updatedAst)
+          const selection = updateSelections(
+            { 0: pathToReplacedNode },
+            selectionRanges,
+            updatedAst.newAst
+          )
+          if (err(selection)) return Promise.reject(selection)
+          return {
+            selectionType: 'completeSelection',
+            selection,
+            updatedPathToNode: pathToReplacedNode,
+          }
         },
       },
       devTools: true,

src/components/ModelingSidebar/ModelingPanes/MemoryPane.test.tsx

@@ -43,23 +43,23 @@ describe('processMemory', () => {
       theExtrude: [
         {
           type: 'extrudePlane',
-          name: '',
+          tag: null,
           id: expect.any(String),
           faceId: expect.any(String),
           sourceRange: [170, 194],
         },
         {
           type: 'extrudePlane',
-          name: '',
+          tag: null,
           id: expect.any(String),
           faceId: expect.any(String),
           sourceRange: [202, 230],
         },
       ],
       theSketch: [
-        { type: 'ToPoint', to: [-3.35, 0.17], from: [0, 0], name: '' },
-        { type: 'ToPoint', to: [0.98, 5.16], from: [-3.35, 0.17], name: '' },
-        { type: 'ToPoint', to: [2.15, 4.32], from: [0.98, 5.16], name: '' },
+        { type: 'ToPoint', to: [-3.35, 0.17], from: [0, 0], tag: null },
+        { type: 'ToPoint', to: [0.98, 5.16], from: [-3.35, 0.17], tag: null },
+        { type: 'ToPoint', to: [2.15, 4.32], from: [0.98, 5.16], tag: null },
       ],
     })
   })

src/components/ModelingSidebar/ModelingPanes/MemoryPane.tsx

@@ -1,10 +1,11 @@
+import toast from 'react-hot-toast'
 import ReactJson from 'react-json-view'
 import { useMemo } from 'react'
 import { ProgramMemory, Path, ExtrudeSurface } from 'lang/wasm'
 import { useKclContext } from 'lang/KclProvider'
 import { useResolvedTheme } from 'hooks/useResolvedTheme'
 import { ActionButton } from 'components/ActionButton'
-import toast from 'react-hot-toast'
+import { trap } from 'lib/trap'
 import Tooltip from 'components/Tooltip'
 import { useModelingContext } from 'hooks/useModelingContext'
 
@@ -13,12 +14,12 @@ export const MemoryPaneMenu = () => {
 
   function copyProgramMemoryToClipboard() {
     if (globalThis && 'navigator' in globalThis) {
-      try {
-        navigator.clipboard.writeText(JSON.stringify(programMemory))
-        toast.success('Program memory copied to clipboard')
-      } catch (e) {
-        toast.error('Failed to copy program memory to clipboard')
-      }
+      navigator.clipboard
+        .writeText(JSON.stringify(programMemory))
+        .then(() => toast.success('Program memory copied to clipboard'))
+        .catch((e) =>
+          trap(new Error('Failed to copy program memory to clipboard'))
+        )
     }
   }
 

src/components/Stream.tsx

@@ -127,6 +127,7 @@ export const Stream = ({ className = '' }: { className?: string }) => {
   return (
     <div
       className="absolute inset-0 z-0"
+      id="stream"
       data-testid="stream"
       onMouseUp={handleMouseUp}
       onMouseDown={handleMouseDown}

src/components/Toolbar/EqualAngle.tsx

@@ -10,28 +10,46 @@ import {
   transformSecondarySketchLinesTagFirst,
   getTransformInfos,
   PathToNodeMap,
+  TransformInfo,
 } from '../../lang/std/sketchcombos'
 import { kclManager } from 'lib/singletons'
+import { err } from 'lib/trap'
 
 export function equalAngleInfo({
   selectionRanges,
 }: {
   selectionRanges: Selections
-}) {
+}):
+  | {
+      transforms: TransformInfo[]
+      enabled: boolean
+    }
+  | Error {
   const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
     getNodePathFromSourceRange(kclManager.ast, range)
   )
-  const nodes = paths.map(
-    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
-  )
-  const varDecs = paths.map(
-    (pathToNode) =>
-      getNodeFromPath<VariableDeclarator>(
-        kclManager.ast,
-        pathToNode,
-        'VariableDeclarator'
-      )?.node
-  )
+  const _nodes = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<Value>(kclManager.ast, pathToNode)
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err1 = _nodes.find(err)
+  if (err(_err1)) return _err1
+  const nodes = _nodes as Value[]
+
+  const _varDecs = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<VariableDeclarator>(
+      kclManager.ast,
+      pathToNode,
+      'VariableDeclarator'
+    )
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err2 = _varDecs.find(err)
+  if (err(_err2)) return _err2
+  const varDecs = _varDecs as VariableDeclarator[]
+
   const primaryLine = varDecs[0]
   const secondaryVarDecs = varDecs.slice(1)
   const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
@@ -51,6 +69,7 @@ export function equalAngleInfo({
     kclManager.ast,
     'equalAngle'
   )
+  if (err(transforms)) return transforms
 
   const enabled =
     !!secondaryVarDecs.length &&
@@ -64,16 +83,24 @@ export function applyConstraintEqualAngle({
   selectionRanges,
 }: {
   selectionRanges: Selections
-}): {
-  modifiedAst: Program
-  pathToNodeMap: PathToNodeMap
-} {
-  const { transforms } = equalAngleInfo({ selectionRanges })
-  const { modifiedAst, pathToNodeMap } = transformSecondarySketchLinesTagFirst({
+}):
+  | {
+      modifiedAst: Program
+      pathToNodeMap: PathToNodeMap
+    }
+  | Error {
+  const info = equalAngleInfo({ selectionRanges })
+  if (err(info)) return info
+  const { transforms } = info
+
+  const transform = transformSecondarySketchLinesTagFirst({
     ast: kclManager.ast,
     selectionRanges,
     transformInfos: transforms,
     programMemory: kclManager.programMemory,
   })
+  if (err(transform)) return transform
+  const { modifiedAst, pathToNodeMap } = transform
+
   return { modifiedAst, pathToNodeMap }
 }

src/components/Toolbar/EqualLength.tsx

@@ -10,28 +10,46 @@ import {
   transformSecondarySketchLinesTagFirst,
   getTransformInfos,
   PathToNodeMap,
+  TransformInfo,
 } from '../../lang/std/sketchcombos'
 import { kclManager } from 'lib/singletons'
+import { err } from 'lib/trap'
 
 export function setEqualLengthInfo({
   selectionRanges,
 }: {
   selectionRanges: Selections
-}) {
+}):
+  | {
+      transforms: TransformInfo[]
+      enabled: boolean
+    }
+  | Error {
   const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
     getNodePathFromSourceRange(kclManager.ast, range)
   )
-  const nodes = paths.map(
-    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
-  )
-  const varDecs = paths.map(
-    (pathToNode) =>
-      getNodeFromPath<VariableDeclarator>(
-        kclManager.ast,
-        pathToNode,
-        'VariableDeclarator'
-      )?.node
-  )
+  const _nodes = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<Value>(kclManager.ast, pathToNode)
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err1 = _nodes.find(err)
+  if (err(_err1)) return _err1
+  const nodes = _nodes as Value[]
+
+  const _varDecs = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<VariableDeclarator>(
+      kclManager.ast,
+      pathToNode,
+      'VariableDeclarator'
+    )
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err2 = _varDecs.find(err)
+  if (err(_err2)) return _err2
+  const varDecs = _varDecs as VariableDeclarator[]
+
   const primaryLine = varDecs[0]
   const secondaryVarDecs = varDecs.slice(1)
   const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
@@ -51,6 +69,7 @@ export function setEqualLengthInfo({
     kclManager.ast,
     'equalLength'
   )
+  if (err(transforms)) return transforms
 
   const enabled =
     !!secondaryVarDecs.length &&
@@ -65,16 +84,24 @@ export function applyConstraintEqualLength({
   selectionRanges,
 }: {
   selectionRanges: Selections
-}): {
-  modifiedAst: Program
-  pathToNodeMap: PathToNodeMap
-} {
-  const { transforms } = setEqualLengthInfo({ selectionRanges })
-  const { modifiedAst, pathToNodeMap } = transformSecondarySketchLinesTagFirst({
+}):
+  | {
+      modifiedAst: Program
+      pathToNodeMap: PathToNodeMap
+    }
+  | Error {
+  const info = setEqualLengthInfo({ selectionRanges })
+  if (err(info)) return info
+  const { transforms } = info
+
+  const transform = transformSecondarySketchLinesTagFirst({
     ast: kclManager.ast,
     selectionRanges,
     transformInfos: transforms,
     programMemory: kclManager.programMemory,
   })
+  if (err(transform)) return transform
+  const { modifiedAst, pathToNodeMap } = transform
+
   return { modifiedAst, pathToNodeMap }
 }

src/components/Toolbar/HorzVert.tsx

@@ -9,19 +9,32 @@ import {
   PathToNodeMap,
   getTransformInfos,
   transformAstSketchLines,
+  TransformInfo,
 } from '../../lang/std/sketchcombos'
 import { kclManager } from 'lib/singletons'
+import { err } from 'lib/trap'
 
 export function horzVertInfo(
   selectionRanges: Selections,
   horOrVert: 'vertical' | 'horizontal'
-) {
+):
+  | {
+      transforms: TransformInfo[]
+      enabled: boolean
+    }
+  | Error {
   const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
     getNodePathFromSourceRange(kclManager.ast, range)
   )
-  const nodes = paths.map(
-    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
-  )
+  const _nodes = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<Value>(kclManager.ast, pathToNode)
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err1 = _nodes.find(err)
+  if (err(_err1)) return _err1
+  const nodes = _nodes as Value[]
+
   const isAllTooltips = nodes.every(
     (node) =>
       node?.type === 'CallExpression' &&
@@ -33,6 +46,8 @@ export function horzVertInfo(
     kclManager.ast,
     horOrVert
   )
+  if (err(theTransforms)) return theTransforms
+
   const _enableHorz = isAllTooltips && theTransforms.every(Boolean)
   return { enabled: _enableHorz, transforms: theTransforms }
 }
@@ -42,11 +57,16 @@ export function applyConstraintHorzVert(
   horOrVert: 'vertical' | 'horizontal',
   ast: Program,
   programMemory: ProgramMemory
-): {
-  modifiedAst: Program
-  pathToNodeMap: PathToNodeMap
-} {
-  const transformInfos = horzVertInfo(selectionRanges, horOrVert).transforms
+):
+  | {
+      modifiedAst: Program
+      pathToNodeMap: PathToNodeMap
+    }
+  | Error {
+  const info = horzVertInfo(selectionRanges, horOrVert)
+  if (err(info)) return info
+  const transformInfos = info.transforms
+
   return transformAstSketchLines({
     ast,
     selectionRanges,

src/components/Toolbar/Intersect.tsx

@@ -11,11 +11,13 @@ import {
   transformSecondarySketchLinesTagFirst,
   getTransformInfos,
   PathToNodeMap,
+  TransformInfo,
 } from '../../lang/std/sketchcombos'
 import { GetInfoModal, createInfoModal } from '../SetHorVertDistanceModal'
 import { createVariableDeclaration } from '../../lang/modifyAst'
 import { removeDoubleNegatives } from '../AvailableVarsHelpers'
 import { kclManager } from 'lib/singletons'
+import { err } from 'lib/trap'
 
 const getModalInfo = createInfoModal(GetInfoModal)
 
@@ -23,7 +25,13 @@ export function intersectInfo({
   selectionRanges,
 }: {
   selectionRanges: Selections
-}) {
+}):
+  | {
+      transforms: TransformInfo[]
+      enabled: boolean
+      forcedSelectionRanges: Selections
+    }
+  | Error {
   if (selectionRanges.codeBasedSelections.length < 2) {
     return {
       enabled: false,
@@ -40,6 +48,8 @@ export function intersectInfo({
       selectionRanges.codeBasedSelections[0],
       selectionRanges.codeBasedSelections[1]
     )
+  if (err(previousSegment)) return previousSegment
+
   const shouldUsePreviousSegment =
     selectionRanges.codeBasedSelections?.[1]?.type !== 'line-end' &&
     previousSegment &&
@@ -61,17 +71,28 @@ export function intersectInfo({
   const paths = _forcedSelectionRanges.codeBasedSelections.map(({ range }) =>
     getNodePathFromSourceRange(kclManager.ast, range)
   )
-  const nodes = paths.map(
-    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
-  )
-  const varDecs = paths.map(
-    (pathToNode) =>
-      getNodeFromPath<VariableDeclarator>(
-        kclManager.ast,
-        pathToNode,
-        'VariableDeclarator'
-      )?.node
-  )
+  const _nodes = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<Value>(kclManager.ast, pathToNode)
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err1 = _nodes.find(err)
+  if (err(_err1)) return _err1
+  const nodes = _nodes as Value[]
+
+  const _varDecs = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<VariableDeclarator>(
+      kclManager.ast,
+      pathToNode,
+      'VariableDeclarator'
+    )
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err2 = _varDecs.find(err)
+  if (err(_err2)) return _err2
+  const varDecs = _varDecs as VariableDeclarator[]
+
   const primaryLine = varDecs[0]
   const secondaryVarDecs = varDecs.slice(1)
   const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
@@ -117,16 +138,22 @@ export async function applyConstraintIntersect({
   modifiedAst: Program
   pathToNodeMap: PathToNodeMap
 }> {
-  const { transforms, forcedSelectionRanges } = intersectInfo({
+  const info = intersectInfo({
     selectionRanges,
   })
+  if (err(info)) return Promise.reject(info)
+  const { transforms, forcedSelectionRanges } = info
+
+  const transform1 = transformSecondarySketchLinesTagFirst({
+    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    selectionRanges: forcedSelectionRanges,
+    transformInfos: transforms,
+    programMemory: kclManager.programMemory,
+  })
+  if (err(transform1)) return Promise.reject(transform1)
   const { modifiedAst, tagInfo, valueUsedInTransform, pathToNodeMap } =
-    transformSecondarySketchLinesTagFirst({
-      ast: JSON.parse(JSON.stringify(kclManager.ast)),
-      selectionRanges: forcedSelectionRanges,
-      transformInfos: transforms,
-      programMemory: kclManager.programMemory,
-    })
+    transform1
+
   const {
     segName,
     value,
@@ -156,15 +183,18 @@ export async function applyConstraintIntersect({
     sign,
     variableName
   )
+  const transform2 = transformSecondarySketchLinesTagFirst({
+    ast: kclManager.ast,
+    selectionRanges: forcedSelectionRanges,
+    transformInfos: transforms,
+    programMemory: kclManager.programMemory,
+    forceSegName: segName,
+    forceValueUsedInTransform: finalValue,
+  })
+  if (err(transform2)) return Promise.reject(transform2)
   const { modifiedAst: _modifiedAst, pathToNodeMap: _pathToNodeMap } =
-    transformSecondarySketchLinesTagFirst({
-      ast: kclManager.ast,
-      selectionRanges: forcedSelectionRanges,
-      transformInfos: transforms,
-      programMemory: kclManager.programMemory,
-      forceSegName: segName,
-      forceValueUsedInTransform: finalValue,
-    })
+    transform2
+
   if (variableName) {
     const newBody = [..._modifiedAst.body]
     newBody.splice(

src/components/Toolbar/RemoveConstrainingValues.tsx

@@ -9,8 +9,10 @@ import {
   PathToNodeMap,
   getRemoveConstraintsTransforms,
   transformAstSketchLines,
+  TransformInfo,
 } from '../../lang/std/sketchcombos'
 import { kclManager } from 'lib/singletons'
+import { err } from 'lib/trap'
 
 export function removeConstrainingValuesInfo({
   selectionRanges,
@@ -18,15 +20,27 @@ export function removeConstrainingValuesInfo({
 }: {
   selectionRanges: Selections
   pathToNodes?: Array<PathToNode>
-}) {
+}):
+  | {
+      transforms: TransformInfo[]
+      enabled: boolean
+      updatedSelectionRanges: Selections
+    }
+  | Error {
   const paths =
     pathToNodes ||
     selectionRanges.codeBasedSelections.map(({ range }) =>
       getNodePathFromSourceRange(kclManager.ast, range)
     )
-  const nodes = paths.map(
-    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
-  )
+  const _nodes = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<Value>(kclManager.ast, pathToNode)
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err1 = _nodes.find(err)
+  if (err(_err1)) return _err1
+  const nodes = _nodes as Value[]
+
   const updatedSelectionRanges = pathToNodes
     ? {
         otherSelections: [],
@@ -44,19 +58,15 @@ export function removeConstrainingValuesInfo({
       toolTips.includes(node.callee.name as any)
   )
 
-  try {
-    const transforms = getRemoveConstraintsTransforms(
-      updatedSelectionRanges,
-      kclManager.ast,
-      'removeConstrainingValues'
-    )
+  const transforms = getRemoveConstraintsTransforms(
+    updatedSelectionRanges,
+    kclManager.ast,
+    'removeConstrainingValues'
+  )
+  if (err(transforms)) return transforms
 
-    const enabled = isAllTooltips && transforms.every(Boolean)
-    return { enabled, transforms, updatedSelectionRanges }
-  } catch (e) {
-    console.error(e)
-    return { enabled: false, transforms: [], updatedSelectionRanges }
-  }
+  const enabled = isAllTooltips && transforms.every(Boolean)
+  return { enabled, transforms, updatedSelectionRanges }
 }
 
 export function applyRemoveConstrainingValues({
@@ -65,14 +75,19 @@ export function applyRemoveConstrainingValues({
 }: {
   selectionRanges: Selections
   pathToNodes?: Array<PathToNode>
-}): {
-  modifiedAst: Program
-  pathToNodeMap: PathToNodeMap
-} {
-  const { transforms, updatedSelectionRanges } = removeConstrainingValuesInfo({
+}):
+  | {
+      modifiedAst: Program
+      pathToNodeMap: PathToNodeMap
+    }
+  | Error {
+  const constraint = removeConstrainingValuesInfo({
     selectionRanges,
     pathToNodes,
   })
+  if (err(constraint)) return constraint
+  const { transforms, updatedSelectionRanges } = constraint
+
   return transformAstSketchLines({
     ast: kclManager.ast,
     selectionRanges: updatedSelectionRanges,

src/components/Toolbar/SetAbsDistance.tsx

@@ -9,6 +9,7 @@ import {
   getTransformInfos,
   transformAstSketchLines,
   PathToNodeMap,
+  TransformInfo,
 } from '../../lang/std/sketchcombos'
 import {
   SetAngleLengthModal,
@@ -20,6 +21,7 @@ import {
 } from '../../lang/modifyAst'
 import { removeDoubleNegatives } from '../AvailableVarsHelpers'
 import { kclManager } from 'lib/singletons'
+import { err } from 'lib/trap'
 
 const getModalInfo = createSetAngleLengthModal(SetAngleLengthModal)
 
@@ -31,7 +33,12 @@ export function absDistanceInfo({
 }: {
   selectionRanges: Selections
   constraint: Constraint
-}) {
+}):
+  | {
+      transforms: TransformInfo[]
+      enabled: boolean
+    }
+  | Error {
   const disType =
     constraint === 'xAbs' || constraint === 'yAbs'
       ? constraint
@@ -41,10 +48,19 @@ export function absDistanceInfo({
   const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
     getNodePathFromSourceRange(kclManager.ast, range)
   )
-  const nodes = paths.map(
-    (pathToNode) =>
-      getNodeFromPath<Value>(kclManager.ast, pathToNode, 'CallExpression').node
-  )
+  const _nodes = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<Value>(
+      kclManager.ast,
+      pathToNode,
+      'CallExpression'
+    )
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err1 = _nodes.find(err)
+  if (err(_err1)) return _err1
+  const nodes = _nodes as Value[]
+
   const isAllTooltips = nodes.every(
     (node) =>
       node?.type === 'CallExpression' &&
@@ -52,6 +68,7 @@ export function absDistanceInfo({
   )
 
   const transforms = getTransformInfos(selectionRanges, kclManager.ast, disType)
+  if (err(transforms)) return transforms
 
   const enableY =
     disType === 'yAbs' &&
@@ -81,17 +98,23 @@ export async function applyConstraintAbsDistance({
   modifiedAst: Program
   pathToNodeMap: PathToNodeMap
 }> {
-  const transformInfos = absDistanceInfo({
+  const info = absDistanceInfo({
     selectionRanges,
     constraint,
-  }).transforms
-  const { valueUsedInTransform } = transformAstSketchLines({
+  })
+  if (err(info)) return Promise.reject(info)
+  const transformInfos = info.transforms
+
+  const transform1 = transformAstSketchLines({
     ast: JSON.parse(JSON.stringify(kclManager.ast)),
     selectionRanges: selectionRanges,
     transformInfos,
     programMemory: kclManager.programMemory,
     referenceSegName: '',
   })
+  if (err(transform1)) return Promise.reject(transform1)
+  const { valueUsedInTransform } = transform1
+
   let forceVal = valueUsedInTransform || 0
   const { valueNode, variableName, newVariableInsertIndex, sign } =
     await getModalInfo({
@@ -104,7 +127,7 @@ export async function applyConstraintAbsDistance({
     variableName
   )
 
-  const { modifiedAst: _modifiedAst, pathToNodeMap } = transformAstSketchLines({
+  const transform2 = transformAstSketchLines({
     ast: JSON.parse(JSON.stringify(kclManager.ast)),
     selectionRanges: selectionRanges,
     transformInfos,
@@ -112,6 +135,9 @@ export async function applyConstraintAbsDistance({
     referenceSegName: '',
     forceValueUsedInTransform: finalValue,
   })
+  if (err(transform2)) return Promise.reject(transform2)
+  const { modifiedAst: _modifiedAst, pathToNodeMap } = transform2
+
   if (variableName) {
     const newBody = [..._modifiedAst.body]
     newBody.splice(
@@ -134,14 +160,18 @@ export function applyConstraintAxisAlign({
 }: {
   selectionRanges: Selections
   constraint: 'snapToYAxis' | 'snapToXAxis'
-}): {
-  modifiedAst: Program
-  pathToNodeMap: PathToNodeMap
-} {
-  const transformInfos = absDistanceInfo({
+}):
+  | {
+      modifiedAst: Program
+      pathToNodeMap: PathToNodeMap
+    }
+  | Error {
+  const info = absDistanceInfo({
     selectionRanges,
     constraint,
-  }).transforms
+  })
+  if (err(info)) return info
+  const transformInfos = info.transforms
 
   let finalValue = createIdentifier('ZERO')
 

src/components/Toolbar/SetAngleBetween.tsx

@@ -10,11 +10,13 @@ import {
   transformSecondarySketchLinesTagFirst,
   getTransformInfos,
   PathToNodeMap,
+  TransformInfo,
 } from '../../lang/std/sketchcombos'
 import { GetInfoModal, createInfoModal } from '../SetHorVertDistanceModal'
 import { createVariableDeclaration } from '../../lang/modifyAst'
 import { removeDoubleNegatives } from '../AvailableVarsHelpers'
 import { kclManager } from 'lib/singletons'
+import { err } from 'lib/trap'
 
 const getModalInfo = createInfoModal(GetInfoModal)
 
@@ -22,22 +24,38 @@ export function angleBetweenInfo({
   selectionRanges,
 }: {
   selectionRanges: Selections
-}) {
+}):
+  | {
+      transforms: TransformInfo[]
+      enabled: boolean
+    }
+  | Error {
   const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
     getNodePathFromSourceRange(kclManager.ast, range)
   )
 
-  const nodes = paths.map(
-    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
-  )
-  const varDecs = paths.map(
-    (pathToNode) =>
-      getNodeFromPath<VariableDeclarator>(
-        kclManager.ast,
-        pathToNode,
-        'VariableDeclarator'
-      )?.node
-  )
+  const _nodes = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<Value>(kclManager.ast, pathToNode)
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err1 = _nodes.find(err)
+  if (err(_err1)) return _err1
+  const nodes = _nodes as Value[]
+
+  const _varDecs = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<VariableDeclarator>(
+      kclManager.ast,
+      pathToNode,
+      'VariableDeclarator'
+    )
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err2 = _varDecs.find(err)
+  if (err(_err2)) return _err2
+  const varDecs = _varDecs as VariableDeclarator[]
+
   const primaryLine = varDecs[0]
   const secondaryVarDecs = varDecs.slice(1)
   const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
@@ -77,14 +95,20 @@ export async function applyConstraintAngleBetween({
   modifiedAst: Program
   pathToNodeMap: PathToNodeMap
 }> {
-  const transformInfos = angleBetweenInfo({ selectionRanges }).transforms
+  const info = angleBetweenInfo({ selectionRanges })
+  if (err(info)) return Promise.reject(info)
+  const transformInfos = info.transforms
+
+  const transformed1 = transformSecondarySketchLinesTagFirst({
+    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    selectionRanges,
+    transformInfos,
+    programMemory: kclManager.programMemory,
+  })
+  if (err(transformed1)) return Promise.reject(transformed1)
   const { modifiedAst, tagInfo, valueUsedInTransform, pathToNodeMap } =
-    transformSecondarySketchLinesTagFirst({
-      ast: JSON.parse(JSON.stringify(kclManager.ast)),
-      selectionRanges,
-      transformInfos,
-      programMemory: kclManager.programMemory,
-    })
+    transformed1
+
   const {
     segName,
     value,
@@ -115,15 +139,18 @@ export async function applyConstraintAngleBetween({
     variableName
   )
   // transform again but forcing certain values
+  const transformed2 = transformSecondarySketchLinesTagFirst({
+    ast: kclManager.ast,
+    selectionRanges,
+    transformInfos,
+    programMemory: kclManager.programMemory,
+    forceSegName: segName,
+    forceValueUsedInTransform: finalValue,
+  })
+  if (err(transformed2)) return Promise.reject(transformed2)
   const { modifiedAst: _modifiedAst, pathToNodeMap: _pathToNodeMap } =
-    transformSecondarySketchLinesTagFirst({
-      ast: kclManager.ast,
-      selectionRanges,
-      transformInfos,
-      programMemory: kclManager.programMemory,
-      forceSegName: segName,
-      forceValueUsedInTransform: finalValue,
-    })
+    transformed2
+
   if (variableName) {
     const newBody = [..._modifiedAst.body]
     newBody.splice(

src/components/Toolbar/SetHorzVertDistance.tsx

@@ -9,12 +9,14 @@ import {
   transformSecondarySketchLinesTagFirst,
   getTransformInfos,
   PathToNodeMap,
+  TransformInfo,
 } from '../../lang/std/sketchcombos'
 import { GetInfoModal, createInfoModal } from '../SetHorVertDistanceModal'
 import { createLiteral, createVariableDeclaration } from '../../lang/modifyAst'
 import { removeDoubleNegatives } from '../AvailableVarsHelpers'
 import { kclManager } from 'lib/singletons'
 import { Selections } from 'lib/selections'
+import { cleanErrs, err } from 'lib/trap'
 
 const getModalInfo = createInfoModal(GetInfoModal)
 
@@ -24,21 +26,38 @@ export function horzVertDistanceInfo({
 }: {
   selectionRanges: Selections
   constraint: 'setHorzDistance' | 'setVertDistance'
-}) {
+}):
+  | {
+      transforms: TransformInfo[]
+      enabled: boolean
+    }
+  | Error {
   const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
     getNodePathFromSourceRange(kclManager.ast, range)
   )
-  const nodes = paths.map(
-    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
-  )
-  const varDecs = paths.map(
-    (pathToNode) =>
-      getNodeFromPath<VariableDeclarator>(
-        kclManager.ast,
-        pathToNode,
-        'VariableDeclarator'
-      )?.node
-  )
+  const _nodes = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<Value>(kclManager.ast, pathToNode)
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const [hasErr, , nodesWErrs] = cleanErrs(_nodes)
+
+  if (hasErr) return nodesWErrs[0]
+  const nodes = _nodes as Value[]
+
+  const _varDecs = paths.map((pathToNode) => {
+    const tmp = getNodeFromPath<VariableDeclarator>(
+      kclManager.ast,
+      pathToNode,
+      'VariableDeclarator'
+    )
+    if (err(tmp)) return tmp
+    return tmp.node
+  })
+  const _err2 = _varDecs.find(err)
+  if (err(_err2)) return _err2
+  const varDecs = _varDecs as VariableDeclarator[]
+
   const primaryLine = varDecs[0]
   const secondaryVarDecs = varDecs.slice(1)
   const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
@@ -82,17 +101,21 @@ export async function applyConstraintHorzVertDistance({
   modifiedAst: Program
   pathToNodeMap: PathToNodeMap
 }> {
-  const transformInfos = horzVertDistanceInfo({
+  const info = horzVertDistanceInfo({
     selectionRanges,
     constraint,
-  }).transforms
+  })
+  if (err(info)) return Promise.reject(info)
+  const transformInfos = info.transforms
+  const transformed = transformSecondarySketchLinesTagFirst({
+    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    selectionRanges,
+    transformInfos,
+    programMemory: kclManager.programMemory,
+  })
+  if (err(transformed)) return Promise.reject(transformed)
   const { modifiedAst, tagInfo, valueUsedInTransform, pathToNodeMap } =
-    transformSecondarySketchLinesTagFirst({
-      ast: JSON.parse(JSON.stringify(kclManager.ast)),
-      selectionRanges,
-      transformInfos,
-      programMemory: kclManager.programMemory,
-    })
+    transformed
   const {
     segName,
     value,
@@ -120,15 +143,17 @@ export async function applyConstraintHorzVertDistance({
       ? createLiteral(0)
       : removeDoubleNegatives(valueNode as BinaryPart, sign, variableName)
     // transform again but forcing certain values
-    const { modifiedAst: _modifiedAst, pathToNodeMap } =
-      transformSecondarySketchLinesTagFirst({
-        ast: kclManager.ast,
-        selectionRanges,
-        transformInfos,
-        programMemory: kclManager.programMemory,
-        forceSegName: segName,
-        forceValueUsedInTransform: finalValue,
-      })
+    const transformed = transformSecondarySketchLinesTagFirst({
+      ast: kclManager.ast,
+      selectionRanges,
+      transformInfos,
+      programMemory: kclManager.programMemory,
+      forceSegName: segName,
+      forceValueUsedInTransform: finalValue,
+    })
+
+    if (err(transformed)) return Promise.reject(transformed)
+    const { modifiedAst: _modifiedAst, pathToNodeMap } = transformed
     if (variableName) {
       const newBody = [..._modifiedAst.body]
       newBody.splice(
@@ -155,22 +180,28 @@ export function applyConstraintHorzVertAlign({
 }: {
   selectionRanges: Selections
   constraint: 'setHorzDistance' | 'setVertDistance'
-}): {
-  modifiedAst: Program
-  pathToNodeMap: PathToNodeMap
-} {
-  const transformInfos = horzVertDistanceInfo({
+}):
+  | {
+      modifiedAst: Program
+      pathToNodeMap: PathToNodeMap
+    }
+  | Error {
+  const info = horzVertDistanceInfo({
     selectionRanges,
     constraint,
-  }).transforms
+  })
+  if (err(info)) return info
+  const transformInfos = info.transforms
   let finalValue = createLiteral(0)
-  const { modifiedAst, pathToNodeMap } = transformSecondarySketchLinesTagFirst({
+  const retval = transformSecondarySketchLinesTagFirst({
     ast: kclManager.ast,
     selectionRanges,
     transformInfos,
     programMemory: kclManager.programMemory,
     forceValueUsedInTransform: finalValue,
   })
+  if (err(retval)) return retval
+  const { modifiedAst, pathToNodeMap } = retval
   return {
     modifiedAst: modifiedAst,
     pathToNodeMap,

src/components/Toolbar/setAngleLength.tsx

@@ -9,6 +9,7 @@ import {
   PathToNodeMap,
   getTransformInfos,
   transformAstSketchLines,
+  TransformInfo,
 } from '../../lang/std/sketchcombos'
 import {
   SetAngleLengthModal,
@@ -22,6 +23,7 @@ import {
 import { removeDoubleNegatives } from '../AvailableVarsHelpers'
 import { normaliseAngle } from '../../lib/utils'
 import { kclManager } from 'lib/singletons'
+import { err } from 'lib/trap'
 
 const getModalInfo = createSetAngleLengthModal(SetAngleLengthModal)
 
@@ -31,19 +33,29 @@ export function angleLengthInfo({
 }: {
   selectionRanges: Selections
   angleOrLength?: 'setLength' | 'setAngle'
-}) {
+}):
+  | {
+      transforms: TransformInfo[]
+      enabled: boolean
+    }
+  | Error {
   const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
     getNodePathFromSourceRange(kclManager.ast, range)
   )
-  const nodes = paths.map(
-    (pathToNode) =>
-      getNodeFromPath<Value>(kclManager.ast, pathToNode, 'CallExpression').node
-  )
-  const isAllTooltips = nodes.every(
-    (node) =>
-      node?.type === 'CallExpression' &&
-      toolTips.includes(node.callee.name as any)
+
+  const nodes = paths.map((pathToNode) =>
+    getNodeFromPath<Value>(kclManager.ast, pathToNode, 'CallExpression')
   )
+  const _err1 = nodes.find(err)
+  if (err(_err1)) return _err1
+
+  const isAllTooltips = nodes.every((meta) => {
+    if (err(meta)) return false
+    return (
+      meta.node?.type === 'CallExpression' &&
+      toolTips.includes(meta.node.callee.name as any)
+    )
+  })
 
   const transforms = getTransformInfos(
     selectionRanges,
@@ -67,88 +79,91 @@ export async function applyConstraintAngleLength({
   modifiedAst: Program
   pathToNodeMap: PathToNodeMap
 }> {
-  const { transforms } = angleLengthInfo({ selectionRanges, angleOrLength })
-  const { valueUsedInTransform } = transformAstSketchLines({
+  const angleLength = angleLengthInfo({ selectionRanges, angleOrLength })
+  if (err(angleLength)) return Promise.reject(angleLength)
+
+  const { transforms } = angleLength
+  const sketched = transformAstSketchLines({
     ast: JSON.parse(JSON.stringify(kclManager.ast)),
     selectionRanges,
     transformInfos: transforms,
     programMemory: kclManager.programMemory,
     referenceSegName: '',
   })
-  try {
-    const isReferencingYAxis =
-      selectionRanges.otherSelections.length === 1 &&
-      selectionRanges.otherSelections[0] === 'y-axis'
-    const isReferencingYAxisAngle =
-      isReferencingYAxis && angleOrLength === 'setAngle'
+  if (err(sketched)) return Promise.reject(sketched)
+  const { valueUsedInTransform } = sketched
 
-    const isReferencingXAxis =
-      selectionRanges.otherSelections.length === 1 &&
-      selectionRanges.otherSelections[0] === 'x-axis'
-    const isReferencingXAxisAngle =
-      isReferencingXAxis && angleOrLength === 'setAngle'
+  const isReferencingYAxis =
+    selectionRanges.otherSelections.length === 1 &&
+    selectionRanges.otherSelections[0] === 'y-axis'
+  const isReferencingYAxisAngle =
+    isReferencingYAxis && angleOrLength === 'setAngle'
 
-    let forceVal = valueUsedInTransform || 0
-    let calcIdentifier = createIdentifier('ZERO')
-    if (isReferencingYAxisAngle) {
-      calcIdentifier = createIdentifier(
-        forceVal < 0 ? 'THREE_QUARTER_TURN' : 'QUARTER_TURN'
-      )
-      forceVal = normaliseAngle(forceVal + (forceVal < 0 ? 90 : -90))
-    } else if (isReferencingXAxisAngle) {
-      calcIdentifier = createIdentifier(
-        Math.abs(forceVal) > 90 ? 'HALF_TURN' : 'ZERO'
-      )
-      forceVal =
-        Math.abs(forceVal) > 90 ? normaliseAngle(forceVal - 180) : forceVal
-    }
-    const { valueNode, variableName, newVariableInsertIndex, sign } =
-      await getModalInfo({
-        value: forceVal,
-        valueName: angleOrLength === 'setAngle' ? 'angle' : 'length',
-        shouldCreateVariable: true,
-      })
+  const isReferencingXAxis =
+    selectionRanges.otherSelections.length === 1 &&
+    selectionRanges.otherSelections[0] === 'x-axis'
+  const isReferencingXAxisAngle =
+    isReferencingXAxis && angleOrLength === 'setAngle'
 
-    let finalValue = removeDoubleNegatives(
-      valueNode as BinaryPart,
-      sign,
-      variableName
+  let forceVal = valueUsedInTransform || 0
+  let calcIdentifier = createIdentifier('ZERO')
+  if (isReferencingYAxisAngle) {
+    calcIdentifier = createIdentifier(
+      forceVal < 0 ? 'THREE_QUARTER_TURN' : 'QUARTER_TURN'
     )
-    if (
-      isReferencingYAxisAngle ||
-      (isReferencingXAxisAngle && calcIdentifier.name !== 'ZERO')
-    ) {
-      finalValue = createBinaryExpressionWithUnary([calcIdentifier, finalValue])
-    }
+    forceVal = normaliseAngle(forceVal + (forceVal < 0 ? 90 : -90))
+  } else if (isReferencingXAxisAngle) {
+    calcIdentifier = createIdentifier(
+      Math.abs(forceVal) > 90 ? 'HALF_TURN' : 'ZERO'
+    )
+    forceVal =
+      Math.abs(forceVal) > 90 ? normaliseAngle(forceVal - 180) : forceVal
+  }
+  const { valueNode, variableName, newVariableInsertIndex, sign } =
+    await getModalInfo({
+      value: forceVal,
+      valueName: angleOrLength === 'setAngle' ? 'angle' : 'length',
+      shouldCreateVariable: true,
+    })
 
-    const { modifiedAst: _modifiedAst, pathToNodeMap } =
-      transformAstSketchLines({
-        ast: JSON.parse(JSON.stringify(kclManager.ast)),
-        selectionRanges,
-        transformInfos: transforms,
-        programMemory: kclManager.programMemory,
-        referenceSegName: '',
-        forceValueUsedInTransform: finalValue,
-      })
-    if (variableName) {
-      const newBody = [..._modifiedAst.body]
-      newBody.splice(
-        newVariableInsertIndex,
-        0,
-        createVariableDeclaration(variableName, valueNode)
-      )
-      _modifiedAst.body = newBody
-      Object.values(pathToNodeMap).forEach((pathToNode) => {
-        const index = pathToNode.findIndex((a) => a[0] === 'body') + 1
-        pathToNode[index][0] = Number(pathToNode[index][0]) + 1
-      })
-    }
-    return {
-      modifiedAst: _modifiedAst,
-      pathToNodeMap,
-    }
-  } catch (e) {
-    console.log('error', e)
-    throw e
+  let finalValue = removeDoubleNegatives(
+    valueNode as BinaryPart,
+    sign,
+    variableName
+  )
+  if (
+    isReferencingYAxisAngle ||
+    (isReferencingXAxisAngle && calcIdentifier.name !== 'ZERO')
+  ) {
+    finalValue = createBinaryExpressionWithUnary([calcIdentifier, finalValue])
+  }
+
+  const retval = transformAstSketchLines({
+    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    selectionRanges,
+    transformInfos: transforms,
+    programMemory: kclManager.programMemory,
+    referenceSegName: '',
+    forceValueUsedInTransform: finalValue,
+  })
+  if (err(retval)) return Promise.reject(retval)
+
+  const { modifiedAst: _modifiedAst, pathToNodeMap } = retval
+  if (variableName) {
+    const newBody = [..._modifiedAst.body]
+    newBody.splice(
+      newVariableInsertIndex,
+      0,
+      createVariableDeclaration(variableName, valueNode)
+    )
+    _modifiedAst.body = newBody
+    Object.values(pathToNodeMap).forEach((pathToNode) => {
+      const index = pathToNode.findIndex((a) => a[0] === 'body') + 1
+      pathToNode[index][0] = Number(pathToNode[index][0]) + 1
+    })
+  }
+  return {
+    modifiedAst: _modifiedAst,
+    pathToNodeMap,
   }
 }

src/components/UserSidebarMenu.tsx

@@ -20,6 +20,12 @@ const UserSidebarMenu = ({ user }: { user?: User }) => {
   const navigate = useNavigate()
   const send = useSettingsAuthContext()?.auth?.send
 
+  // This image host goes down sometimes. We will instead rewrite the
+  // resource to be a local one.
+  if (user?.image === 'https://placekitten.com/200/200') {
+    user.image = '/cat.jpg'
+  }
+
   // Fallback logic for displaying user's "name":
   // 1. user.name
   // 2. user.first_name + ' ' + user.last_name

src/editor/manager.ts

@@ -160,9 +160,6 @@ export default class EditorManager {
     if (selections.codeBasedSelections.length === 0) {
       return
     }
-    if (!this.editorView) {
-      return
-    }
     let codeBasedSelections = []
     for (const selection of selections.codeBasedSelections) {
       codeBasedSelections.push(
@@ -177,6 +174,9 @@ export default class EditorManager {
         ].range[1]
       )
     )
+    if (!this.editorView) {
+      return
+    }
     this.editorView.dispatch({
       selection: EditorSelection.create(codeBasedSelections, 1),
     })

src/editor/plugins/lsp/client.ts

@@ -1,192 +1,54 @@
-import * as jsrpc from 'json-rpc-2.0'
-import * as LSP from 'vscode-languageserver-protocol'
-
+import { LspContext, LspWorkerEventType } from './types'
 import {
-  registerServerCapability,
-  unregisterServerCapability,
-} from './server-capability-registration'
-import { Codec, FromServer, IntoServer } from './codec'
+  LanguageClient,
+  LanguageClientOptions,
+} from 'vscode-languageclient/browser'
+import Worker from 'editor/plugins/lsp/worker.ts?worker'
 
-const client_capabilities: LSP.ClientCapabilities = {
-  textDocument: {
-    hover: {
-      dynamicRegistration: true,
-      contentFormat: ['plaintext', 'markdown'],
-    },
-    moniker: {},
-    synchronization: {
-      dynamicRegistration: true,
-      willSave: false,
-      didSave: false,
-      willSaveWaitUntil: false,
-    },
-    completion: {
-      dynamicRegistration: true,
-      completionItem: {
-        snippetSupport: false,
-        commitCharactersSupport: true,
-        documentationFormat: ['plaintext', 'markdown'],
-        deprecatedSupport: false,
-        preselectSupport: false,
-      },
-      contextSupport: false,
-    },
-    signatureHelp: {
-      dynamicRegistration: true,
-      signatureInformation: {
-        documentationFormat: ['plaintext', 'markdown'],
-      },
-    },
-    declaration: {
-      dynamicRegistration: true,
-      linkSupport: true,
-    },
-    definition: {
-      dynamicRegistration: true,
-      linkSupport: true,
-    },
-    typeDefinition: {
-      dynamicRegistration: true,
-      linkSupport: true,
-    },
-    implementation: {
-      dynamicRegistration: true,
-      linkSupport: true,
-    },
-  },
-  workspace: {
-    didChangeConfiguration: {
-      dynamicRegistration: true,
-    },
-  },
-}
+export default class LspServerClient {
+  context: LspContext
+  client: LanguageClient | null = null
+  worker: Worker | null = null
 
-export default class Client extends jsrpc.JSONRPCServerAndClient {
-  afterInitializedHooks: (() => Promise<void>)[] = []
-  #fromServer: FromServer
-  private serverCapabilities: LSP.ServerCapabilities<any> = {}
-  private notifyFn: ((message: LSP.NotificationMessage) => void) | null = null
-
-  constructor(fromServer: FromServer, intoServer: IntoServer) {
-    super(
-      new jsrpc.JSONRPCServer(),
-      new jsrpc.JSONRPCClient(async (json: jsrpc.JSONRPCRequest) => {
-        const encoded = Codec.encode(json)
-        intoServer.enqueue(encoded)
-        if (null != json.id) {
-          // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-          const response = await fromServer.responses.get(json.id)
-          this.client.receive(response as jsrpc.JSONRPCResponse)
-        }
-      })
-    )
-    this.#fromServer = fromServer
+  constructor(context: LspContext) {
+    this.context = context
   }
 
-  async start(): Promise<void> {
-    // process "window/logMessage": client <- server
-    this.addMethod(LSP.LogMessageNotification.type.method, (params) => {
-      const { type, message } = params as {
-        type: LSP.MessageType
-        message: string
-      }
-      let messageString = ''
-      switch (type) {
-        case LSP.MessageType.Error: {
-          messageString += '[error] '
-          break
-        }
-        case LSP.MessageType.Warning: {
-          messageString += ' [warn] '
-          break
-        }
-        case LSP.MessageType.Info: {
-          messageString += ' [info] '
-          break
-        }
-        case LSP.MessageType.Log: {
-          messageString += '  [log] '
-          break
-        }
-      }
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      messageString += message
+  async startServer() {
+    this.worker = new Worker({ name: this.context.worker })
+    this.worker.postMessage({
+      worker: this.context.worker,
+      eventType: LspWorkerEventType.Init,
+      eventData: this.context.options,
+    })
+  }
+
+  async startClient() {
+    const clientOptions: LanguageClientOptions = {
+      documentSelector: [{ language: 'kcl' }],
+      diagnosticCollectionName: 'markers',
+    }
+
+    if (!this.worker) {
+      console.error('Worker not initialized')
       return
-    })
+    }
 
-    // process "client/registerCapability": client <- server
-    this.addMethod(LSP.RegistrationRequest.type.method, (params) => {
-      // Register a server capability.
-      params.registrations.forEach(
-        (capabilityRegistration: LSP.Registration) => {
-          this.serverCapabilities = registerServerCapability(
-            this.serverCapabilities,
-            capabilityRegistration
-          )
-        }
-      )
-    })
-
-    // process "client/unregisterCapability": client <- server
-    this.addMethod(LSP.UnregistrationRequest.type.method, (params) => {
-      // Unregister a server capability.
-      params.unregisterations.forEach(
-        (capabilityUnregistration: LSP.Unregistration) => {
-          this.serverCapabilities = unregisterServerCapability(
-            this.serverCapabilities,
-            capabilityUnregistration
-          )
-        }
-      )
-    })
-
-    // request "initialize": client <-> server
-    const { capabilities } = await this.request(
-      LSP.InitializeRequest.type.method,
-      {
-        processId: null,
-        clientInfo: {
-          name: 'kcl-language-client',
-        },
-        capabilities: client_capabilities,
-        rootUri: null,
-      } as LSP.InitializeParams
+    this.client = new LanguageClient(
+      this.context.worker + 'LspClient',
+      this.context.worker + ' LSP Client',
+      clientOptions,
+      this.worker
     )
 
-    this.serverCapabilities = capabilities
-
-    // notify "initialized": client --> server
-    this.notify(LSP.InitializedNotification.type.method, {})
-
-    await Promise.all(
-      this.afterInitializedHooks.map((f: () => Promise<void>) => f())
-    )
-    await Promise.all([this.processNotifications(), this.processRequests()])
-  }
-
-  getServerCapabilities(): LSP.ServerCapabilities<any> {
-    return this.serverCapabilities
-  }
-
-  setNotifyFn(fn: (message: LSP.NotificationMessage) => void): void {
-    this.notifyFn = fn
-  }
-
-  async processNotifications(): Promise<void> {
-    for await (const notification of this.#fromServer.notifications) {
-      if (this.notifyFn) {
-        this.notifyFn(notification)
-      }
+    try {
+      await this.client.start()
+    } catch (error) {
+      this.client.error(`Start failed`, error, 'force')
     }
   }
 
-  async processRequests(): Promise<void> {
-    for await (const request of this.#fromServer.requests) {
-      await this.receiveAndSend(request)
-    }
-  }
-
-  pushAfterInitializeHook(...hooks: (() => Promise<void>)[]): void {
-    this.afterInitializedHooks.push(...hooks)
+  deactivate() {
+    return this.client?.stop()
   }
 }

src/editor/plugins/lsp/codec.ts

@@ -1,73 +0,0 @@
-import * as jsrpc from 'json-rpc-2.0'
-import * as vsrpc from 'vscode-jsonrpc'
-
-import Bytes from './codec/bytes'
-import StreamDemuxer from './codec/demuxer'
-import Headers from './codec/headers'
-import Queue from './codec/queue'
-import Tracer from './tracer'
-import { LspWorkerEventType, LspWorker } from './types'
-
-export const encoder = new TextEncoder()
-export const decoder = new TextDecoder()
-
-export class Codec {
-  static encode(
-    json: jsrpc.JSONRPCRequest | jsrpc.JSONRPCResponse
-  ): Uint8Array {
-    const message = JSON.stringify(json)
-    const delimited = Headers.add(message)
-    return Bytes.encode(delimited)
-  }
-
-  static decode<T>(data: Uint8Array): T {
-    const delimited = Bytes.decode(data)
-    const message = Headers.remove(delimited)
-    return JSON.parse(message) as T
-  }
-}
-
-// FIXME: tracing efficiency
-export class IntoServer
-  extends Queue<Uint8Array>
-  implements AsyncGenerator<Uint8Array, never, void>
-{
-  private worker: Worker | null = null
-  private type_: LspWorker | null = null
-  constructor(type_?: LspWorker, worker?: Worker) {
-    super()
-    if (worker && type_) {
-      this.worker = worker
-      this.type_ = type_
-    }
-  }
-  enqueue(item: Uint8Array): void {
-    Tracer.client(Headers.remove(decoder.decode(item)))
-    if (this.worker) {
-      this.worker.postMessage({
-        worker: this.type_,
-        eventType: LspWorkerEventType.Call,
-        eventData: item,
-      })
-    } else {
-      super.enqueue(item)
-    }
-  }
-}
-
-export interface FromServer extends WritableStream<Uint8Array> {
-  readonly responses: {
-    get(key: number | string): null | Promise<vsrpc.ResponseMessage>
-  }
-  readonly notifications: AsyncGenerator<vsrpc.NotificationMessage, never, void>
-  readonly requests: AsyncGenerator<vsrpc.RequestMessage, never, void>
-
-  add(item: Uint8Array): void
-}
-
-// eslint-disable-next-line @typescript-eslint/no-namespace
-export namespace FromServer {
-  export function create(): FromServer {
-    return new StreamDemuxer()
-  }
-}