Revert "Switch projects fix (#3310)"

This reverts commit dff3848a00.

.codespellrc

@@ -1,3 +1,3 @@
 [codespell]
-ignore-words-list: crate,everytime,inout,co-ordinate,ot,nwo,absolutey,atleast,ue
+ignore-words-list: crate,everytime,inout,co-ordinate,ot,nwo,absolutey,atleast,ue,afterall
 skip: **/target,node_modules,build,**/Cargo.lock,./docs/kcl/*.md,./src-tauri/gen/schemas

.github/ISSUE_TEMPLATE/cryptic_error.yml

@@ -0,0 +1,37 @@
+name: Cryptic KCL Error
+description: File a bug report for source code that produces a confusing error
+title: "[CRYPTIC]: "
+labels: ["cryptic-error"]
+assignees: []
+body:
+  - type: markdown
+    attributes:
+      value: "Thank you for taking the time to report a confusing error. Please provide as much information as possible to help us resolve it."
+
+  - type: textarea
+    id: kcl
+    attributes:
+      label: Paste minimal KCL source that produces a cryptic error
+      description: Minimal KCL reproducer that produces a cryptic error
+      placeholder: "const ..."
+      render: javascript
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: Expected Behavior
+      description: Description of what you expected to happen (if you know).
+      placeholder: "I expected that..."
+    validations:
+      required: false
+
+  - type: textarea
+    id: additional-context
+    attributes:
+      label: Additional Context
+      description: Add any other context about the problem here.
+      placeholder: "Anything else you want to add..."
+    validations:
+      required: false

.github/workflows/ci.yml

@@ -13,12 +13,18 @@ on:
   # Will checkout the last commit from the default branch (main as of 2023-10-04)
 
 env:
+  CUT_RELEASE_PR: ${{ github.event_name == 'pull_request' && (contains(github.event.pull_request.title, 'Cut release v')) }}
   BUILD_RELEASE: ${{ github.event_name == 'release' || github.event_name == 'schedule' || github.event_name == 'pull_request' && (contains(github.event.pull_request.title, 'Cut release v')) }}
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
   cancel-in-progress: true
 
+permissions:
+  contents: write
+  pull-requests: write
+  actions: read
+
 jobs:
   check-format:
     runs-on: 'ubuntu-latest'
@@ -83,8 +89,43 @@ jobs:
       - run: yarn build:wasm
 
       - run: yarn simpleserver:ci
+        if: ${{ github.event_name != 'release' && github.event_name != 'schedule' }}
+
+      - name: Install Chromium Browser
+        if: ${{ github.event_name != 'release' && github.event_name != 'schedule' }}
+        run: yarn playwright install chromium --with-deps
+
+      - name: run unit tests
+        if: ${{ github.event_name != 'release' && github.event_name != 'schedule' }}
+        run: yarn test:nowatch
+        env:
+          VITE_KC_DEV_TOKEN: ${{ secrets.KITTYCAD_API_TOKEN_DEV }}
+
+      - name: check for changes
+        if: ${{ github.event_name != 'release' && github.event_name != 'schedule' }}
+        id: git-check
+        run: |
+            git add src/lang/std/artifactMapGraphs
+            if git status src/lang/std/artifactMapGraphs | grep -q "Changes to be committed"
+            then echo "modified=true" >> $GITHUB_OUTPUT
+            else echo "modified=false" >> $GITHUB_OUTPUT
+            fi
+      - name: Commit changes, if any
+        if: ${{ github.event_name != 'release' && github.event_name != 'schedule' && steps.git-check.outputs.modified == 'true' }}
+        run: |
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"
+          git config --local user.name "github-actions[bot]"
+          git remote set-url origin https://${{ github.actor }}:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}.git
+          git fetch origin
+          echo ${{ github.head_ref }}
+          git checkout ${{ github.head_ref }}
+          # TODO when webkit works on ubuntu remove the os part of the commit message
+          git commit -am "Look at this (photo)Graph *in the voice of Nickelback*" || true
+          git push
+          git push origin ${{ github.head_ref }}
+        
+
 
-      - run: yarn test:nowatch
 
 
   prepare-json-files:
@@ -110,8 +151,14 @@ jobs:
           echo "$(jq --arg name 'Zoo Modeling App (Nightly)' \
             '.productName=$name' src-tauri/tauri.release.conf.json --indent 2)" > src-tauri/tauri.release.conf.json
 
+      - name: Set updater test version
+        if: ${{ env.CUT_RELEASE_PR == 'true' }}
+        run: |
+          echo "$(jq --arg url 'https://dl.zoo.dev/releases/modeling-app/test/last_update.json' \
+            '.plugins.updater.endpoints[]=$url' src-tauri/tauri.release.conf.json --indent 2)" > src-tauri/tauri.release.conf.json
+
       - uses: actions/upload-artifact@v3
-        if: github.event_name == 'schedule'
+        if: ${{ github.event_name == 'schedule' || env.CUT_RELEASE_PR == 'true' }}
         with:
           path: |
             package.json
@@ -377,6 +424,30 @@ jobs:
           E2E_TAURI_ENABLED: true
           TS_NODE_COMPILER_OPTIONS: '{"module": "commonjs"}'
 
+      - uses: actions/download-artifact@v3
+        if: ${{ env.CUT_RELEASE_PR == 'true' }}
+
+      - name: Copy updated .json file for updater test
+        if: ${{ env.CUT_RELEASE_PR == 'true' }}
+        run: |
+          ls -l artifact
+          cp artifact/src-tauri/tauri.release.conf.json src-tauri/tauri.release.conf.json
+          cat src-tauri/tauri.release.conf.json
+
+      - name: Build the app (release, updater test)
+        if: ${{ env.CUT_RELEASE_PR == 'true' && matrix.os != 'ubuntu-latest' }}
+        env:
+          TAURI_CONF_ARGS: "-c ${{ matrix.os == 'windows-latest' && 'src-tauri\\tauri.release.conf.json' || 'src-tauri/tauri.release.conf.json' }}"
+          TAURI_BUNDLE_ARGS: "-b ${{ matrix.os == 'windows-latest' && 'msi' || 'dmg' }}"
+        run: "yarn tauri build ${{ env.TAURI_CONF_ARGS }} ${{ env.TAURI_BUNDLE_ARGS }} ${{ env.TAURI_ARGS_MACOS }}"
+
+      - uses: actions/upload-artifact@v3
+        if: ${{ env.CUT_RELEASE_PR == 'true' && matrix.os != 'ubuntu-latest' }}
+        with:
+          path: "${{ matrix.os == 'macos-14' && 'src-tauri/target/universal-apple-darwin/release/bundle/dmg/*.dmg' || 'src-tauri/target/release/bundle/msi/*.msi' }}"
+          name: updater-test
+
+
   publish-apps-release:
     permissions:
       contents: write
@@ -464,7 +535,7 @@ jobs:
           project_id: kittycadapi
 
       - name: Upload release files to public bucket
-        uses: google-github-actions/upload-cloud-storage@v2.1.0
+        uses: google-github-actions/upload-cloud-storage@v2.1.1
         with:
           path: artifact
           glob: '*/Zoo*'
@@ -472,13 +543,13 @@ jobs:
           destination: ${{ env.BUCKET_DIR }}/${{ env.VERSION }}
 
       - name: Upload update endpoint to public bucket
-        uses: google-github-actions/upload-cloud-storage@v2.1.0
+        uses: google-github-actions/upload-cloud-storage@v2.1.1
         with:
           path: last_update.json
           destination: ${{ env.BUCKET_DIR }}
 
       - name: Upload download endpoint to public bucket
-        uses: google-github-actions/upload-cloud-storage@v2.1.0
+        uses: google-github-actions/upload-cloud-storage@v2.1.1
         with:
           path: last_download.json
           destination: ${{ env.BUCKET_DIR }}

.github/workflows/generate-machine-api-types.yml

@@ -0,0 +1,49 @@
+name: generate machine-api types
+
+on:
+  pull_request:
+    paths:
+      - 'openapi/machine-api.json'
+      - '.github/workflows/generate-machine-api-types.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+
+permissions:
+  contents: write
+jobs:
+  generate:
+    runs-on: 'ubuntu-latest'
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: '.nvmrc'
+          cache: 'yarn'
+      - run: yarn install
+      - run: yarn generate:machine-api
+      - run: yarn fmt
+      - name: check for changes
+        id: git-check
+        run: |
+            git add .
+            if git status | grep -q "Changes to be committed"
+            then echo "modified=true" >> $GITHUB_OUTPUT
+            else echo "modified=false" >> $GITHUB_OUTPUT
+            fi
+      - name: Commit changes, if any
+        if: steps.git-check.outputs.modified == 'true'
+        run: |
+          git add .
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"
+          git config --local user.name "github-actions[bot]"
+          git remote set-url origin https://${{ github.actor }}:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}.git
+          git fetch origin
+          echo ${{ github.head_ref }}
+          git checkout ${{ github.head_ref }}
+          git commit -am "New machine-api types" || true
+          git push
+          git push origin ${{ github.head_ref }}
+

.github/workflows/playwright.yml

@@ -13,7 +13,7 @@ permissions:
   contents: write
   pull-requests: write
   actions: read
-  
+
 
 jobs:
 
@@ -34,8 +34,13 @@ jobs:
               - 'src/wasm-lib/**'
 
   playwright-ubuntu:
-    timeout-minutes: 60
+    timeout-minutes: 30
     runs-on: ubuntu-latest-8-cores
+    strategy:
+      fail-fast: false
+      matrix:
+        shardIndex: [1, 2, 3, 4]
+        shardTotal: [4]
     needs: check-rust-changes
     steps:
     - name: Tune GitHub-hosted runner network
@@ -83,6 +88,20 @@ jobs:
       uses: Swatinem/rust-cache@v2
       with:
         workspaces: './src/wasm-lib'
+    - name: Install vector
+      run: |
+        curl --proto '=https' --tlsv1.2 -sSfL https://sh.vector.dev > /tmp/vector.sh
+        chmod +x /tmp/vector.sh
+        /tmp/vector.sh -y -no-modify-path
+        mkdir -p /tmp/vector
+        cp .github/workflows/vector.toml /tmp/vector.toml
+        sed -i "s#GITHUB_WORKFLOW#${GITHUB_WORKFLOW}#g" /tmp/vector.toml
+        sed -i "s#GITHUB_REPOSITORY#${GITHUB_REPOSITORY}#g" /tmp/vector.toml
+        sed -i "s#GITHUB_SHA#${GITHUB_SHA}#g" /tmp/vector.toml
+        sed -i "s#GITHUB_REF_NAME#${GITHUB_REF_NAME}#g" /tmp/vector.toml
+        sed -i "s#GH_ACTIONS_AXIOM_TOKEN#${{secrets.GH_ACTIONS_AXIOM_TOKEN}}#g" /tmp/vector.toml
+        cat /tmp/vector.toml
+        ${HOME}/.vector/bin/vector --config /tmp/vector.toml &
     - name: Build Wasm (because rust diff)
       if: needs.check-rust-changes.outputs.rust-changed == 'true'
       run: yarn build:wasm
@@ -92,13 +111,19 @@ jobs:
     - name: build web
       run: yarn build:local
     - name: Run ubuntu/chrome snapshots
-      continue-on-error: true
       run: |
-        yarn playwright test --project="Google Chrome" --update-snapshots e2e/playwright/snapshot-tests.spec.ts
+        yarn playwright test --project="Google Chrome" --retries="3" --update-snapshots --grep=@snapshot  --shard=${{ matrix.shardIndex }}/${{ matrix.shardTotal }}
       env:
         CI: true
         token: ${{ secrets.KITTYCAD_API_TOKEN_DEV }}
         snapshottoken: ${{ secrets.KITTYCAD_API_TOKEN }}
+    - uses: actions/upload-artifact@v4
+      if: always()
+      with:
+        name: playwright-report-ubuntu-snapshot-${{ matrix.shardIndex }}-${{ github.sha }}
+        path: playwright-report/
+        retention-days: 30
+        overwrite: true
     - name: Clean up test-results
       if: always()
       continue-on-error: true
@@ -129,7 +154,7 @@ jobs:
     - uses: actions/upload-artifact@v4
       if: steps.git-check.outputs.modified == 'true'
       with:
-        name: playwright-report-ubuntu-${{ github.sha }}
+        name: playwright-report-ubuntu-${{ matrix.shardIndex }}-${{ github.sha }}
         path: playwright-report/
         retention-days: 30
     # if have previous run results, use them
@@ -137,47 +162,85 @@ jobs:
       if: always()
       continue-on-error: true
       with:
-        name: test-results-ubuntu-${{ github.sha }}
+        name: test-results-ubuntu-${{ matrix.shardIndex }}-${{ github.sha }}
         path: test-results/
-    - name: Run ubuntu/chrome flow retry failures
+    - name: Run ubuntu/chrome flow (with retries)
       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: ${{ secrets.KITTYCAD_API_TOKEN_DEV }}
-    - name: Run ubuntu/chrome flow
-      if: steps.retry.outputs.retried == 'false'
-      run: yarn playwright test --project="Google Chrome" e2e/playwright/flow-tests.spec.ts
+        if [[ ! -f "test-results/.last-run.json" ]]; then
+            # if no last run artifact, than run plawright normally
+            echo "run playwright normally"
+            yarn playwright test --project="Google Chrome" --shard=${{ matrix.shardIndex }}/${{ matrix.shardTotal }} --grep-invert=@snapshot || true
+            # # send to axiom
+            node playwrightProcess.mjs | tee /tmp/github-actions.log > /dev/null 2>&1
+        fi
+
+        retry=1
+        max_retrys=4
+
+        # retry failed tests, doing our own retries because using inbuilt playwright retries causes connection issues
+        while [[ $retry -le $max_retrys ]]; do
+            if [[ -f "test-results/.last-run.json" ]]; then
+                failed_tests=$(jq '.failedTests | length' test-results/.last-run.json)
+                if [[ $failed_tests -gt 0 ]]; then
+                    echo "retried=true" >>$GITHUB_OUTPUT
+                    echo "run playwright with last failed tests and retry $retry"
+                    yarn playwright test --project="Google Chrome" --last-failed --grep-invert=@snapshot || true
+                    # send to axiom
+                    node playwrightProcess.mjs | tee /tmp/github-actions.log > /dev/null 2>&1
+                    retry=$((retry + 1))
+                else
+                    echo "retried=false" >>$GITHUB_OUTPUT
+                    exit 0
+                fi
+            else
+                echo "retried=false" >>$GITHUB_OUTPUT
+                exit 0
+            fi
+        done
+
+        echo "retried=false" >>$GITHUB_OUTPUT
+
+        if [[ -f "test-results/.last-run.json" ]]; then
+            failed_tests=$(jq '.failedTests | length' test-results/.last-run.json)
+            if [[ $failed_tests -gt 0 ]]; then
+                # if it still fails after 3 retrys, then fail the job
+                exit 1
+            fi
+        fi
+        exit 0
       env:
         CI: true
         token: ${{ secrets.KITTYCAD_API_TOKEN_DEV }}
+    - name: send to axiom
+      if: always()
+      shell: bash
+      run: |
+        node playwrightProcess.mjs | tee /tmp/github-actions.log
     - uses: actions/upload-artifact@v4
       if: always()
       with:
-        name: test-results-ubuntu-${{ github.sha }}
+        name: test-results-ubuntu-${{ matrix.shardIndex }}-${{ github.sha }}
         path: test-results/
         retention-days: 30
         overwrite: true
     - uses: actions/upload-artifact@v4
       if: always()
       with:
-        name: playwright-report-ubuntu-${{ github.sha }}
+        name: playwright-report-ubuntu-${{ matrix.shardIndex }}-${{ github.sha }}
         path: playwright-report/
         retention-days: 30
         overwrite: true
 
   playwright-macos:
-    timeout-minutes: 60
-    runs-on: macos-14-large
+    timeout-minutes: 30
+    runs-on: macos-14
+    strategy:
+      fail-fast: false
+      matrix:
+        shardIndex: [1, 2, 3, 4]
+        shardTotal: [4]
     needs: check-rust-changes
     steps:
     - name: Tune GitHub-hosted runner network
@@ -226,6 +289,20 @@ jobs:
       uses: Swatinem/rust-cache@v2
       with:
         workspaces: './src/wasm-lib'
+    - name: Install vector
+      run: |
+        curl --proto '=https' --tlsv1.2 -sSfL https://sh.vector.dev > /tmp/vector.sh
+        chmod +x /tmp/vector.sh
+        /tmp/vector.sh -y -no-modify-path
+        mkdir -p /tmp/vector
+        cp .github/workflows/vector.toml /tmp/vector.toml
+        sed -i "" "s#GITHUB_WORKFLOW#${GITHUB_WORKFLOW}#g" /tmp/vector.toml
+        sed -i "" "s#GITHUB_REPOSITORY#${GITHUB_REPOSITORY}#g" /tmp/vector.toml
+        sed -i "" "s#GITHUB_SHA#${GITHUB_SHA}#g" /tmp/vector.toml
+        sed -i "" "s#GITHUB_REF_NAME#${GITHUB_REF_NAME}#g" /tmp/vector.toml
+        sed -i "" "s#GH_ACTIONS_AXIOM_TOKEN#${{secrets.GH_ACTIONS_AXIOM_TOKEN}}#g" /tmp/vector.toml
+        cat /tmp/vector.toml
+        ${HOME}/.vector/bin/vector --config /tmp/vector.toml &
     - name: Build Wasm (because rust diff)
       if: needs.check-rust-changes.outputs.rust-changed == 'true'
       run: yarn build:wasm
@@ -239,43 +316,68 @@ jobs:
       if: ${{ always() }}
       continue-on-error: true
       with:
-        name: test-results-macos-${{ github.sha }}
+        name: test-results-macos-${{ matrix.shardIndex }}-${{ github.sha }}
         path: test-results/
-    - name: Run macos/safari flow retry failures
+    - name: Run macos/safari flow (with retries)
       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: ${{ secrets.KITTYCAD_API_TOKEN_DEV }}
-    - name: Run macos/safari flow
-      if: steps.retry.outputs.retried == 'false'
-      # webkit doesn't work on Ubuntu because of the same reason tauri doesn't (webRTC issues)
-      # TODO remove this and the matrix and run all tests on ubuntu when this is fixed
-      run: yarn playwright test --project="webkit" e2e/playwright/flow-tests.spec.ts
+        if [[ ! -f "test-results/.last-run.json" ]]; then
+            # if no last run artifact, than run plawright normally
+            echo "run playwright normally"
+            yarn playwright test --project="webkit" --shard=${{ matrix.shardIndex }}/${{ matrix.shardTotal }} --grep-invert=@snapshot || true
+            # # send to axiom
+            node playwrightProcess.mjs | tee /tmp/github-actions.log > /dev/null 2>&1
+        fi
+
+        retry=1
+        max_retrys=4
+
+        # retry failed tests, doing our own retries because using inbuilt playwright retries causes connection issues
+        while [[ $retry -le $max_retrys ]]; do
+            if [[ -f "test-results/.last-run.json" ]]; then
+                failed_tests=$(jq '.failedTests | length' test-results/.last-run.json)
+                if [[ $failed_tests -gt 0 ]]; then
+                    echo "retried=true" >>$GITHUB_OUTPUT
+                    echo "run playwright with last failed tests and retry $retry"
+                    yarn playwright test --project="webkit" --last-failed --grep-invert=@snapshot || true
+                    # send to axiom
+                    node playwrightProcess.mjs | tee /tmp/github-actions.log > /dev/null 2>&1
+                    retry=$((retry + 1))
+                else
+                    echo "retried=false" >>$GITHUB_OUTPUT
+                    exit 0
+                fi
+            else
+                echo "retried=false" >>$GITHUB_OUTPUT
+                exit 0
+            fi
+        done
+
+        echo "retried=false" >>$GITHUB_OUTPUT
+
+        if [[ -f "test-results/.last-run.json" ]]; then
+            failed_tests=$(jq '.failedTests | length' test-results/.last-run.json)
+            if [[ $failed_tests -gt 0 ]]; then
+                # if it still fails after 3 retrys, then fail the job
+                exit 1
+            fi
+        fi
+        exit 0
       env:
         CI: true
         token: ${{ secrets.KITTYCAD_API_TOKEN_DEV }}
     - uses: actions/upload-artifact@v4
       if: ${{ always() }}
       with:
-        name: test-results-macos-${{ github.sha }}
+        name: test-results-macos-${{ matrix.shardIndex }}-${{ github.sha }}
         path: test-results/
         retention-days: 30
         overwrite: true
     - uses: actions/upload-artifact@v4
       if: ${{ always() }}
       with:
-        name: playwright-report-macos-${{ github.sha }}
+        name: playwright-report-macos-${{ matrix.shardIndex }}-${{ github.sha }}
         path: playwright-report/
         retention-days: 30
         overwrite: true
-

.gitignore

@@ -39,6 +39,7 @@ src/wasm-lib/grackle/test_json_output
 e2e/playwright/playwright-secrets.env
 e2e/playwright/temp1.png
 e2e/playwright/temp2.png
+e2e/playwright/temp3.png
 # exports from snapshot-tests.spec.ts "exports of each format should work"
 e2e/playwright/export-snapshots/*
 !e2e/playwright/export-snapshots/*.png
@@ -48,6 +49,7 @@ e2e/playwright/export-snapshots/*
 /playwright-report/
 /blob-report/
 /playwright/.cache/
+/src/lang/std/artifactMapCache
 
 
 ## generated files
@@ -58,3 +60,5 @@ src/wasm-lib/grackle/stdlib_cube_partial.json
 Mac_App_Distribution.provisionprofile
 
 *.tsbuildinfo
+
+venv

README.md

@@ -110,6 +110,17 @@ Note that these became separate apps on Macos, so make sure you open the right o
 
 <img width="1232" alt="image (1)" src="https://user-images.githubusercontent.com/29681384/211947073-e76b4933-bef5-4636-bc4d-e930ac8e290f.png">
 
+## Checking out commits / Bisecting
+
+Which commands from setup are one off vs need to be run every time?
+
+The following will need to be run when checking out a new commit and guarantees the build is not stale:
+```bash
+yarn install
+yarn build:wasm-dev # or yarn build:wasm for slower but more production-like build
+yarn start # or yarn build:local && yarn serve for slower but more production-like build
+```
+
 ## Before submitting a PR
 
 Before you submit a contribution PR to this repo, please ensure that:
@@ -124,20 +135,40 @@ Before you submit a contribution PR to this repo, please ensure that:
 
 ## Release a new version
 
-1. Bump the versions by running `./make-realease.sh` while on a fresh pull of main
+#### 1. Bump the versions by running `./make-release.sh` and create a Cut Release PR
 
-That will create the branch with the updated json files for you.
-run `./make-release.sh` for a patch update
-run `./make-release.sh "minor"` for minor
-run `./make-release.sh "major"` for major
+That will create the branch with the updated json files for you:
+- run `./make-release.sh` or `./make-release.sh patch` for a patch update;
+- run `./make-release.sh minor` for minor; or
+- run `./make-release.sh major` for major.
 
-After it runs you should just need to push the push the branch and open a PR (it will suggest a changelog for you too, delete any that are not user facing)
+After it runs you should just need the push the branch and open a PR.
 
-The PR may serve as a place to discuss the human-readable changelog and extra QA. 
+**Important:** It needs to be prefixed with `Cut release v` to build in release mode and a few other things to test in the best context possible, the intent would be for instance to have `Cut release v1.2.3` for the `v1.2.3` release candidate.
 
-2. Merge the PR
+The PR may then serve as a place to discuss the human-readable changelog and extra QA. The `make-release.sh` tool suggests a changelog for you too to be used as PR description, just make sure to delete lines that are not user facing.
+
+#### 2. Smoke test artifacts from the Cut Release PR
+
+The release builds can be find under the `artifact` zip, at the very bottom of the `ci` action page for each commit on this branch.
+
+We don't have a strict process, but click around and check for anything obvious, posting results as comments in the Cut Release PR.
+
+The other `ci` output in Cut Release PRs is `updater-test`, because we don't have a way to test this fully automated, we have a semi-automated process. Download updater-test zip file, install the app, run it, expect an updater prompt to a dummy v0.99.99, install it and check that the app comes back at that version (on both macOS and Windows).
+
+#### 3. Merge the Cut Release PR
+
+This will kick the `create-release` action, that creates a _Draft_ release out of this Cut Release PR merge after less than a minute, with the new version as title and Cut Release PR as description.
+
+
+#### 4. Publish the release
+
+Head over to https://github.com/KittyCAD/modeling-app/releases, the draft release corresponding to the merged Cut Release PR should show up at the top as _Draft_. Click on it, verify the content, and hit _Publish_.
+
+#### 5. Profit
+
+A new Action kicks in at https://github.com/KittyCAD/modeling-app/actions, which can be found under `release` event filter.
 
-3. Profit (A new Action kicks in at https://github.com/KittyCAD/modeling-app/actions if the PR was correctly named)
 
 ## Fuzzing the parser
 

docs/kcl/acos.md

@@ -1,10 +1,10 @@
 ---
 title: "acos"
-excerpt: "Computes the arccosine of a number (in radians)."
+excerpt: "Compute the arccosine of a number (in radians)."
 layout: manual
 ---
 
-Computes the arccosine of a number (in radians).
+Compute the arccosine of a number (in radians).
 
 
 

docs/kcl/angledLineThatIntersects.md

@@ -1,12 +1,12 @@
 ---
 title: "angledLineThatIntersects"
-excerpt: "Draw an angled line that intersects with a given line."
+excerpt: "Draw an angled line from the current origin, constructing a line segment"
 layout: manual
 ---
 
-Draw an angled line that intersects with a given line.
-
+Draw an angled line from the current origin, constructing a line segment
 
+such that the newly created line intersects the desired target line segment.
 
 ```js
 angledLineThatIntersects(data: AngledLineThatIntersectsData, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
@@ -22,7 +22,7 @@ const exampleSketch = startSketchOn('XZ')
   |> lineTo([0, 20], %)
   |> angledLineThatIntersects({
        angle: 80,
-       intersectTag: 'lineToIntersect',
+       intersectTag: lineToIntersect,
        offset: 10
      }, %)
   |> close(%)
@@ -41,6 +41,92 @@ const example = extrude(10, exampleSketch)
 	angle: number,
 	// The tag of the line to intersect with.
 	intersectTag: {
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
+	id: uuid,
+	// The path the tag is on.
+	path: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
+	// 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: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	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: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
+},
+},
 	value: string,
 },
 	// The offset from the intersecting line.
@@ -50,7 +136,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -92,19 +178,26 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -117,7 +210,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -127,6 +220,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -143,6 +237,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -160,6 +255,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -173,6 +269,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -186,6 +283,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -201,6 +299,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -218,6 +317,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -239,6 +339,7 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -254,11 +355,44 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -291,6 +425,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -307,6 +442,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -324,6 +460,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -337,6 +474,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -350,6 +488,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -365,6 +504,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -382,6 +522,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -395,6 +536,7 @@ const example = extrude(10, exampleSketch)
 * `tag`: `TagDeclarator` (OPTIONAL)
 ```js
 {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -406,7 +548,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -448,19 +590,26 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -473,7 +622,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -483,6 +632,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -499,6 +649,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -516,6 +667,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -529,6 +681,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -542,6 +695,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -557,6 +711,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -574,6 +729,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -595,6 +751,7 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -610,11 +767,44 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -647,6 +837,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -663,6 +854,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -680,6 +872,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -693,6 +886,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -706,6 +900,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -721,6 +916,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -738,6 +934,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,

docs/kcl/angledLineToY.md

@@ -1,12 +1,12 @@
 ---
 title: "angledLineToY"
-excerpt: "Draw an angled line to a given y coordinate."
+excerpt: "Create a line segment from the current 2-dimensional sketch origin"
 layout: manual
 ---
 
-Draw an angled line to a given y coordinate.
-
+Create a line segment from the current 2-dimensional sketch origin
 
+along some angle (in degrees) for some length, ending at the provided value in the 'y' dimension.
 
 ```js
 angledLineToY(data: AngledLineToData, sketch_group: SketchGroup, tag?: TagDeclarator) -> SketchGroup
@@ -41,7 +41,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -83,19 +83,26 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -108,7 +115,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -118,6 +125,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -134,6 +142,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -151,6 +160,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -164,6 +174,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -177,6 +188,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -192,6 +204,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -209,6 +222,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -230,6 +244,7 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -245,11 +260,44 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -282,6 +330,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -298,6 +347,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -315,6 +365,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -328,6 +379,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -341,6 +393,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -356,6 +409,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -373,6 +427,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -386,6 +441,7 @@ const example = extrude(10, exampleSketch)
 * `tag`: `TagDeclarator` (OPTIONAL)
 ```js
 {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -397,7 +453,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -439,19 +495,26 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -464,7 +527,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -474,6 +537,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -490,6 +554,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -507,6 +572,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -520,6 +586,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -533,6 +600,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -548,6 +616,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -565,6 +634,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -586,6 +656,7 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -601,11 +672,44 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -638,6 +742,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -654,6 +759,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -671,6 +777,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -684,6 +791,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -697,6 +805,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -712,6 +821,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -729,6 +839,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,

docs/kcl/extrude.md

@@ -1,12 +1,12 @@
 ---
 title: "extrude"
-excerpt: "Extrudes by a given amount."
+excerpt: "Extend a 2-dimensional sketch through a third dimension in order to"
 layout: manual
 ---
 
-Extrudes by a given amount.
-
+Extend a 2-dimensional sketch through a third dimension in order to
 
+create new 3-dimensional volume, or if extruded into an existing volume, cut into an existing solid.
 
 ```js
 extrude(length: number, sketch_group_set: SketchGroupSet) -> ExtrudeGroupSet
@@ -19,8 +19,8 @@ const example = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
   |> line([10, 0], %)
   |> arc({
-       angle_end: 0,
-       angle_start: 120,
+       angleStart: 120,
+       angleEnd: 0,
        radius: 5
      }, %)
   |> line([5, 0], %)
@@ -41,8 +41,8 @@ const example = startSketchOn('XZ')
 const exampleSketch = startSketchOn('XZ')
   |> startProfileAt([-10, 0], %)
   |> arc({
-       angle_end: -60,
-       angle_start: 120,
+       angleStart: 120,
+       angleEnd: -60,
        radius: 5
      }, %)
   |> line([10, 0], %)
@@ -67,7 +67,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group_set`: `SketchGroupSet` - A sketch group or a group of sketch groups. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -109,19 +109,26 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -134,7 +141,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -144,6 +151,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -160,6 +168,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -177,6 +186,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -190,6 +200,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -203,6 +214,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -218,6 +230,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -235,6 +248,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -256,6 +270,7 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -271,11 +286,44 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -308,6 +356,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -325,6 +374,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -342,6 +392,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -355,6 +406,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -368,6 +420,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -383,6 +436,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -400,6 +454,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -424,19 +479,26 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -449,7 +511,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -491,19 +553,26 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -528,6 +597,7 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -543,11 +613,44 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -580,6 +683,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -596,6 +700,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -613,6 +718,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -626,6 +732,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -639,6 +746,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -654,6 +762,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -671,6 +780,7 @@ const example = extrude(10, exampleSketch)
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -693,6 +803,7 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -708,11 +819,44 @@ const example = extrude(10, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 } |
 {

docs/kcl/index.md

@@ -20,6 +20,12 @@ layout: manual
 * [`angledLineToY`](kcl/angledLineToY)
 * [`arc`](kcl/arc)
 * [`asin`](kcl/asin)
+* [`assert`](kcl/assert)
+* [`assertEqual`](kcl/assertEqual)
+* [`assertGreaterThan`](kcl/assertGreaterThan)
+* [`assertGreaterThanOrEq`](kcl/assertGreaterThanOrEq)
+* [`assertLessThan`](kcl/assertLessThan)
+* [`assertLessThanOrEq`](kcl/assertLessThanOrEq)
 * [`atan`](kcl/atan)
 * [`bezierCurve`](kcl/bezierCurve)
 * [`ceil`](kcl/ceil)
@@ -31,13 +37,13 @@ layout: manual
 * [`extrude`](kcl/extrude)
 * [`fillet`](kcl/fillet)
 * [`floor`](kcl/floor)
-* [`getEdge`](kcl/getEdge)
 * [`getNextAdjacentEdge`](kcl/getNextAdjacentEdge)
 * [`getOppositeEdge`](kcl/getOppositeEdge)
 * [`getPreviousAdjacentEdge`](kcl/getPreviousAdjacentEdge)
 * [`helix`](kcl/helix)
 * [`hole`](kcl/hole)
 * [`import`](kcl/import)
+* [`int`](kcl/int)
 * [`lastSegX`](kcl/lastSegX)
 * [`lastSegY`](kcl/lastSegY)
 * [`legAngX`](kcl/legAngX)
@@ -57,6 +63,7 @@ layout: manual
 * [`patternLinear3d`](kcl/patternLinear3d)
 * [`patternTransform`](kcl/patternTransform)
 * [`pi`](kcl/pi)
+* [`polar`](kcl/polar)
 * [`pow`](kcl/pow)
 * [`profileStart`](kcl/profileStart)
 * [`profileStartX`](kcl/profileStartX)

docs/kcl/legAngX.md

@@ -1,10 +1,10 @@
 ---
 title: "legAngX"
-excerpt: "Returns the angle of the given leg for x."
+excerpt: "Compute the angle of the given leg for x."
 layout: manual
 ---
 
-Returns the angle of the given leg for x.
+Compute the angle of the given leg for x.
 
 
 

docs/kcl/legAngY.md

@@ -1,10 +1,10 @@
 ---
 title: "legAngY"
-excerpt: "Returns the angle of the given leg for y."
+excerpt: "Compute the angle of the given leg for y."
 layout: manual
 ---
 
-Returns the angle of the given leg for y.
+Compute the angle of the given leg for y.
 
 
 

docs/kcl/legLen.md

@@ -1,10 +1,10 @@
 ---
 title: "legLen"
-excerpt: "Returns the length of the given leg."
+excerpt: "Compute the length of the given leg."
 layout: manual
 ---
 
-Returns the length of the given leg.
+Compute the length of the given leg.
 
 
 

docs/kcl/ln.md

@@ -1,10 +1,10 @@
 ---
 title: "ln"
-excerpt: "Computes the natural logarithm of the number."
+excerpt: "Compute the natural logarithm of the number."
 layout: manual
 ---
 
-Computes the natural logarithm of the number.
+Compute the natural logarithm of the number.
 
 
 

docs/kcl/log.md

@@ -1,10 +1,10 @@
 ---
 title: "log"
-excerpt: "Computes the logarithm of the number with respect to an arbitrary base."
+excerpt: "Compute the logarithm of the number with respect to an arbitrary base."
 layout: manual
 ---
 
-Computes the logarithm of the number with respect to an arbitrary base.
+Compute the logarithm of the number with respect to an arbitrary base.
 
 The result might not be correctly rounded owing to implementation details; `log2()` can produce more accurate results for base 2, and `log10()` can produce more accurate results for base 10.
 

docs/kcl/log2.md

@@ -1,10 +1,10 @@
 ---
 title: "log2"
-excerpt: "Computes the base 2 logarithm of the number."
+excerpt: "Compute the base 2 logarithm of the number."
 layout: manual
 ---
 
-Computes the base 2 logarithm of the number.
+Compute the base 2 logarithm of the number.
 
 
 

docs/kcl/min.md

@@ -1,10 +1,10 @@
 ---
 title: "min"
-excerpt: "Computes the minimum of the given arguments."
+excerpt: "Compute the minimum of the given arguments."
 layout: manual
 ---
 
-Computes the minimum of the given arguments.
+Compute the minimum of the given arguments.
 
 
 

docs/kcl/profileStartX.md

@@ -1,12 +1,12 @@
 ---
 title: "profileStartX"
-excerpt: ""
+excerpt: "Extract the provided 2-dimensional sketch group's profile's origin's 'x'"
 layout: manual
 ---
 
+Extract the provided 2-dimensional sketch group's profile's origin's 'x'
 
-
-
+value.
 
 ```js
 profileStartX(sketch_group: SketchGroup) -> number
@@ -29,7 +29,7 @@ const sketch001 = startSketchOn('XY')
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -71,19 +71,26 @@ const sketch001 = startSketchOn('XY')
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -96,7 +103,7 @@ const sketch001 = startSketchOn('XY')
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -106,6 +113,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -122,6 +130,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -139,6 +148,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -152,6 +162,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -165,6 +176,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -180,6 +192,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -197,6 +210,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -218,6 +232,7 @@ const sketch001 = startSketchOn('XY')
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -233,11 +248,44 @@ const sketch001 = startSketchOn('XY')
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -270,6 +318,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -286,6 +335,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -303,6 +353,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -316,6 +367,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -329,6 +381,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -344,6 +397,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -361,6 +415,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,

docs/kcl/profileStartY.md

@@ -1,12 +1,12 @@
 ---
 title: "profileStartY"
-excerpt: ""
+excerpt: "Extract the provided 2-dimensional sketch group's profile's origin's 'y'"
 layout: manual
 ---
 
+Extract the provided 2-dimensional sketch group's profile's origin's 'y'
 
-
-
+value.
 
 ```js
 profileStartY(sketch_group: SketchGroup) -> number
@@ -28,7 +28,7 @@ const sketch001 = startSketchOn('XY')
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -70,19 +70,26 @@ const sketch001 = startSketchOn('XY')
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -95,7 +102,7 @@ const sketch001 = startSketchOn('XY')
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -105,6 +112,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -121,6 +129,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -138,6 +147,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -151,6 +161,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -164,6 +175,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -179,6 +191,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -196,6 +209,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -217,6 +231,7 @@ const sketch001 = startSketchOn('XY')
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -232,11 +247,44 @@ const sketch001 = startSketchOn('XY')
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -269,6 +317,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -285,6 +334,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -302,6 +352,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -315,6 +366,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -328,6 +380,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -343,6 +396,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -360,6 +414,7 @@ const sketch001 = startSketchOn('XY')
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,

docs/kcl/segAng.md

@@ -1,15 +1,15 @@
 ---
 title: "segAng"
-excerpt: "Returns the angle of the segment."
+excerpt: "Compute the angle (in degrees) of the provided line segment."
 layout: manual
 ---
 
-Returns the angle of the segment.
+Compute the angle (in degrees) of the provided line segment.
 
 
 
 ```js
-segAng(segment_name: TagIdentifier, sketch_group: SketchGroup) -> number
+segAng(tag: TagIdentifier) -> number
 ```
 
 ### Examples
@@ -20,9 +20,9 @@ const exampleSketch = startSketchOn('XZ')
   |> line([10, 0], %)
   |> 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)
@@ -32,92 +32,20 @@ const example = extrude(4, exampleSketch)
 
 ### Arguments
 
-* `segment_name`: `TagIdentifier` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
 ```js
 {
-	value: string,
-}
-```
-* `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
-```js
-{
-	// The id of the sketch group.
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
 	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: {
-	// 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 path the tag is on.
+	path: {
 	// The from point.
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -125,103 +53,10 @@ const example = extrude(4, exampleSketch)
 	// The to point.
 	to: [number, number],
 },
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// 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 sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
 	// The face id for the extrude plane.
 	faceId: uuid,
 	// The id of the geometry.
@@ -230,6 +65,7 @@ const example = extrude(4, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -245,142 +81,47 @@ const example = extrude(4, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
 	type: "extrudeArc",
-}],
-},
-	// The id of the face.
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
 	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.
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
-	// The to point.
-	to: [number, number],
-},
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// 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",
+	type: "chamfer",
 } |
 {
-	// arc's direction
-	ccw: string,
-	// the arc's center
-	center: [number, number],
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	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,
+	type: "fillet",
 },
-	// 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",
-}],
 }
 ```
 

docs/kcl/segEndY.md

@@ -1,15 +1,15 @@
 ---
 title: "segEndY"
-excerpt: "Returns the segment end of y."
+excerpt: "Compute the ending point of the provided line segment along the 'y' axis."
 layout: manual
 ---
 
-Returns the segment end of y.
+Compute the ending point of the provided line segment along the 'y' axis.
 
 
 
 ```js
-segEndY(segment_name: TagIdentifier, sketch_group: SketchGroup) -> number
+segEndY(tag: TagIdentifier) -> number
 ```
 
 ### Examples
@@ -20,7 +20,7 @@ const exampleSketch = startSketchOn('XZ')
   |> line([20, 0], %)
   |> line([0, 3], %, $thing)
   |> line([-10, 0], %)
-  |> line([0, segEndY(thing, %)], %)
+  |> line([0, segEndY(thing)], %)
   |> line([-10, 0], %)
   |> close(%)
 
@@ -31,92 +31,20 @@ const example = extrude(5, exampleSketch)
 
 ### Arguments
 
-* `segment_name`: `TagIdentifier` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
 ```js
 {
-	value: string,
-}
-```
-* `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
-```js
-{
-	// The id of the sketch group.
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
 	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: {
-	// 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 path the tag is on.
+	path: {
 	// The from point.
 	from: [number, number],
 	// The tag of the path.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -124,103 +52,10 @@ const example = extrude(5, exampleSketch)
 	// The to point.
 	to: [number, number],
 },
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// 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 sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
 	// The face id for the extrude plane.
 	faceId: uuid,
 	// The id of the geometry.
@@ -229,6 +64,7 @@ const example = extrude(5, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
@@ -244,142 +80,47 @@ const example = extrude(5, exampleSketch)
 	sourceRange: [number, number],
 	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
 	type: "extrudeArc",
-}],
-},
-	// The id of the face.
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
 	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.
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
-	// The to point.
-	to: [number, number],
-},
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// 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",
+	type: "chamfer",
 } |
 {
-	// arc's direction
-	ccw: string,
-	// the arc's center
-	center: [number, number],
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	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,
+	type: "fillet",
 },
-	// 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",
-}],
 }
 ```
 

e2e/playwright/basic-sketch.spec.ts

@@ -0,0 +1,153 @@
+import { test, expect, Page } from '@playwright/test'
+import {
+  getUtils,
+  TEST_COLORS,
+  setup,
+  tearDown,
+  commonPoints,
+  PERSIST_MODELING_CONTEXT,
+} from './test-utils'
+
+test.beforeEach(async ({ context, page }) => {
+  await setup(context, page)
+})
+
+test.afterEach(async ({ page }, testInfo) => {
+  await tearDown(page, testInfo)
+})
+
+test.setTimeout(120000)
+
+async function doBasicSketch(page: Page, openPanes: string[]) {
+  const u = await getUtils(page)
+  await page.setViewportSize({ width: 1200, height: 500 })
+  const PUR = 400 / 37.5 //pixeltoUnitRatio
+
+  await u.waitForAuthSkipAppStart()
+  await u.openDebugPanel()
+
+  // If we have the code pane open, we should see the code.
+  if (openPanes.includes('code')) {
+    await expect(u.codeLocator).toHaveText(``)
+  } else {
+    // Ensure we don't see the code.
+    await expect(u.codeLocator).not.toBeVisible()
+  }
+
+  await expect(
+    page.getByRole('button', { name: 'Start Sketch' })
+  ).not.toBeDisabled()
+  await expect(page.getByRole('button', { name: 'Start Sketch' })).toBeVisible()
+
+  // click on "Start Sketch" button
+  await u.clearCommandLogs()
+  await page.getByRole('button', { name: 'Start Sketch' }).click()
+  await page.waitForTimeout(100)
+
+  // select a plane
+  await page.mouse.click(700, 200)
+
+  if (openPanes.includes('code')) {
+    await expect(u.codeLocator).toHaveText(
+      `const sketch001 = startSketchOn('XZ')`
+    )
+  }
+  await u.closeDebugPanel()
+
+  await page.waitForTimeout(1000) // TODO detect animation ending, or disable animation
+
+  const startXPx = 600
+  await page.mouse.click(startXPx + PUR * 10, 500 - PUR * 10)
+  if (openPanes.includes('code')) {
+    await expect(u.codeLocator)
+      .toHaveText(`const sketch001 = startSketchOn('XZ')
+  |> startProfileAt(${commonPoints.startAt}, %)`)
+  }
+  await page.waitForTimeout(500)
+  await page.mouse.click(startXPx + PUR * 20, 500 - PUR * 10)
+  await page.waitForTimeout(500)
+
+  if (openPanes.includes('code')) {
+    await expect(u.codeLocator)
+      .toHaveText(`const sketch001 = startSketchOn('XZ')
+  |> startProfileAt(${commonPoints.startAt}, %)
+  |> line([${commonPoints.num1}, 0], %)`)
+  }
+  await page.waitForTimeout(500)
+  await page.mouse.click(startXPx + PUR * 20, 500 - PUR * 20)
+  if (openPanes.includes('code')) {
+    await expect(u.codeLocator)
+      .toHaveText(`const sketch001 = startSketchOn('XZ')
+  |> startProfileAt(${commonPoints.startAt}, %)
+  |> line([${commonPoints.num1}, 0], %)
+  |> line([0, ${commonPoints.num1 + 0.01}], %)`)
+  } else {
+    await page.waitForTimeout(500)
+  }
+  await page.mouse.click(startXPx, 500 - PUR * 20)
+  if (openPanes.includes('code')) {
+    await expect(u.codeLocator)
+      .toHaveText(`const sketch001 = startSketchOn('XZ')
+  |> startProfileAt(${commonPoints.startAt}, %)
+  |> line([${commonPoints.num1}, 0], %)
+  |> line([0, ${commonPoints.num1 + 0.01}], %)
+  |> line([-${commonPoints.num2}, 0], %)`)
+  }
+
+  // deselect line tool
+  await page.getByRole('button', { name: 'Line', exact: true }).click()
+  await page.waitForTimeout(500)
+
+  const line1 = await u.getSegmentBodyCoords(`[data-overlay-index="${0}"]`, 0)
+  if (openPanes.includes('code')) {
+    expect(await u.getGreatestPixDiff(line1, TEST_COLORS.WHITE)).toBeLessThan(3)
+    await expect(
+      await u.getGreatestPixDiff(line1, [249, 249, 249])
+    ).toBeLessThan(3)
+  }
+  // click between first two clicks to get center of the line
+  await page.mouse.click(startXPx + PUR * 15, 500 - PUR * 10)
+  await page.waitForTimeout(100)
+  if (openPanes.includes('code')) {
+    expect(await u.getGreatestPixDiff(line1, TEST_COLORS.BLUE)).toBeLessThan(3)
+    await expect(await u.getGreatestPixDiff(line1, [0, 0, 255])).toBeLessThan(3)
+  }
+
+  // hold down shift
+  await page.keyboard.down('Shift')
+  // click between the latest two clicks to get center of the line
+  await page.mouse.click(startXPx + PUR * 10, 500 - PUR * 20)
+
+  // selected two lines therefore there should be two cursors
+  if (openPanes.includes('code')) {
+    await expect(page.locator('.cm-cursor')).toHaveCount(2)
+  }
+
+  await page.getByRole('button', { name: 'Length: open menu' }).click()
+  await page.getByRole('button', { name: 'Equal Length' }).click()
+
+  // Open the code pane.
+  await u.openKclCodePanel()
+  await expect(u.codeLocator).toHaveText(`const sketch001 = startSketchOn('XZ')
+  |> startProfileAt(${commonPoints.startAt}, %)
+  |> line([${commonPoints.num1}, 0], %, $seg01)
+  |> line([0, ${commonPoints.num1 + 0.01}], %)
+  |> angledLine([180, segLen(seg01)], %)`)
+}
+
+test.describe('Basic sketch', () => {
+  test('code pane open at start', async ({ page }) => {
+    await doBasicSketch(page, ['code'])
+  })
+
+  test('code pane closed at start', async ({ page }) => {
+    // Load the app with the code panes
+    await page.addInitScript(async (persistModelingContext) => {
+      localStorage.setItem(
+        persistModelingContext,
+        JSON.stringify({ openPanes: [] })
+      )
+    }, PERSIST_MODELING_CONTEXT)
+    await doBasicSketch(page, [])
+  })
+})

e2e/playwright/can-create-sketches-on-all-planes-and-their-back-sides.spec.ts

@@ -0,0 +1,111 @@
+import { test, expect } from '@playwright/test'
+import { getUtils, setup, tearDown } from './test-utils'
+import { EngineCommand } from 'lang/std/artifactGraph'
+import { uuidv4 } from 'lib/utils'
+
+test.beforeEach(async ({ context, page }) => {
+  await setup(context, page)
+})
+
+test.afterEach(async ({ page }, testInfo) => {
+  await tearDown(page, testInfo)
+})
+
+test.describe('Can create sketches on all planes and their back sides', () => {
+  const sketchOnPlaneAndBackSideTest = async (
+    page: any,
+    plane: string,
+    clickCoords: { x: number; y: number }
+  ) => {
+    const u = await getUtils(page)
+    const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+    await u.openDebugPanel()
+
+    const coord =
+      plane === '-XY' || plane === '-YZ' || plane === 'XZ' ? -100 : 100
+    const camCommand: EngineCommand = {
+      type: 'modeling_cmd_req',
+      cmd_id: uuidv4(),
+      cmd: {
+        type: 'default_camera_look_at',
+        center: { x: 0, y: 0, z: 0 },
+        vantage: { x: coord, y: coord, z: coord },
+        up: { x: 0, y: 0, z: 1 },
+      },
+    }
+    const updateCamCommand: EngineCommand = {
+      type: 'modeling_cmd_req',
+      cmd_id: uuidv4(),
+      cmd: {
+        type: 'default_camera_get_settings',
+      },
+    }
+
+    const code = `const sketch001 = startSketchOn('${plane}')
+    |> startProfileAt([0.9, -1.22], %)`
+
+    await u.openDebugPanel()
+
+    await u.clearCommandLogs()
+    await page.getByRole('button', { name: 'Start Sketch' }).click()
+
+    await u.sendCustomCmd(camCommand)
+    await page.waitForTimeout(100)
+    await u.sendCustomCmd(updateCamCommand)
+
+    await u.closeDebugPanel()
+    await page.mouse.click(clickCoords.x, clickCoords.y)
+    await page.waitForTimeout(300) // wait for animation
+
+    await expect(
+      page.getByRole('button', { name: 'Line', exact: true })
+    ).toBeVisible()
+
+    // draw a line
+    const startXPx = 600
+
+    await u.closeDebugPanel()
+    await page.mouse.click(startXPx + PUR * 10, 500 - PUR * 10)
+
+    await expect(page.locator('.cm-content')).toHaveText(code)
+
+    await page.getByRole('button', { name: 'Line', exact: true }).click()
+    await u.openAndClearDebugPanel()
+    await page.getByRole('button', { name: 'Exit Sketch' }).click()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+
+    await u.clearCommandLogs()
+    await u.removeCurrentCode()
+  }
+  test('XY', async ({ page }) => {
+    await sketchOnPlaneAndBackSideTest(
+      page,
+      'XY',
+      { x: 600, y: 388 } // red plane
+      // { x: 600, y: 400 }, // red plane // clicks grid helper and that causes problems, should fix so that these coords work too.
+    )
+  })
+
+  test('YZ', async ({ page }) => {
+    await sketchOnPlaneAndBackSideTest(page, 'YZ', { x: 700, y: 250 }) // green plane
+  })
+
+  test('XZ', async ({ page }) => {
+    await sketchOnPlaneAndBackSideTest(page, '-XZ', { x: 700, y: 80 }) // blue plane
+  })
+
+  test('-XY', async ({ page }) => {
+    await sketchOnPlaneAndBackSideTest(page, '-XY', { x: 600, y: 118 }) // back of red plane
+  })
+
+  test('-YZ', async ({ page }) => {
+    await sketchOnPlaneAndBackSideTest(page, '-YZ', { x: 700, y: 219 }) // back of green plane
+  })
+
+  test('-XZ', async ({ page }) => {
+    await sketchOnPlaneAndBackSideTest(page, 'XZ', { x: 700, y: 427 }) // back of blue plane
+  })
+})

e2e/playwright/code-pane-and-errors.spec.ts

@@ -0,0 +1,219 @@
+import { test, expect } from '@playwright/test'
+
+import { getUtils, setup, tearDown } from './test-utils'
+import { bracket } from 'lib/exampleKcl'
+import { TEST_CODE_LONG_WITH_ERROR_OUT_OF_VIEW } from './storageStates'
+
+test.beforeEach(async ({ context, page }) => {
+  await setup(context, page)
+})
+
+test.afterEach(async ({ page }, testInfo) => {
+  await tearDown(page, testInfo)
+})
+
+test.describe('Code pane and errors', () => {
+  test('Typing KCL errors induces a badge on the code pane button', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+
+    // Load the app with the working starter code
+    await page.addInitScript((code) => {
+      localStorage.setItem('persistCode', code)
+    }, bracket)
+
+    await page.setViewportSize({ width: 1200, height: 500 })
+    await u.waitForAuthSkipAppStart()
+
+    // wait for execution done
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.closeDebugPanel()
+
+    // Ensure no badge is present
+    const codePaneButtonHolder = page.locator('#code-button-holder')
+    await expect(codePaneButtonHolder).not.toContainText('notification')
+
+    // Delete a character to break the KCL
+    await u.openKclCodePanel()
+    await page.getByText('extrude(').click()
+    await page.keyboard.press('Backspace')
+
+    // Ensure that a badge appears on the button
+    await expect(codePaneButtonHolder).toContainText('notification')
+  })
+
+  test('Opening and closing the code pane will consistently show error diagnostics', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+
+    // Load the app with the working starter code
+    await page.addInitScript((code) => {
+      localStorage.setItem('persistCode', code)
+    }, bracket)
+
+    await page.setViewportSize({ width: 1200, height: 900 })
+    await u.waitForAuthSkipAppStart()
+
+    // wait for execution done
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.closeDebugPanel()
+
+    // Ensure we have no errors in the gutter.
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    // Ensure no badge is present
+    const codePaneButton = page.getByRole('button', { name: 'KCL Code pane' })
+    const codePaneButtonHolder = page.locator('#code-button-holder')
+    await expect(codePaneButtonHolder).not.toContainText('notification')
+
+    // Delete a character to break the KCL
+    await u.openKclCodePanel()
+    await page.getByText('extrude(').click()
+    await page.keyboard.press('Backspace')
+
+    // Ensure that a badge appears on the button
+    await expect(codePaneButtonHolder).toContainText('notification')
+
+    // Ensure we have an error diagnostic.
+    await expect(page.locator('.cm-lint-marker-error')).toBeVisible()
+
+    // error text on hover
+    await page.hover('.cm-lint-marker-error')
+    await expect(page.getByText('Unexpected token').first()).toBeVisible()
+
+    // Close the code pane
+    await codePaneButton.click()
+
+    await page.waitForTimeout(500)
+
+    // Ensure that a badge appears on the button
+    await expect(codePaneButtonHolder).toContainText('notification')
+    // Ensure we have no errors in the gutter.
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    // Open the code pane
+    await u.openKclCodePanel()
+
+    // Ensure that a badge appears on the button
+    await expect(codePaneButtonHolder).toContainText('notification')
+
+    // Ensure we have an error diagnostic.
+    await expect(page.locator('.cm-lint-marker-error')).toBeVisible()
+
+    // error text on hover
+    await page.hover('.cm-lint-marker-error')
+    await expect(page.getByText('Unexpected token').first()).toBeVisible()
+  })
+
+  test('When error is not in view you can click the badge to scroll to it', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+
+    // Load the app with the working starter code
+    await page.addInitScript((code) => {
+      localStorage.setItem('persistCode', code)
+    }, TEST_CODE_LONG_WITH_ERROR_OUT_OF_VIEW)
+
+    await page.setViewportSize({ width: 1200, height: 500 })
+    await u.waitForAuthSkipAppStart()
+
+    await page.waitForTimeout(1000)
+
+    // Ensure badge is present
+    const codePaneButtonHolder = page.locator('#code-button-holder')
+    await expect(codePaneButtonHolder).toContainText('notification')
+
+    // Ensure we have no errors in the gutter, since error out of view.
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    // Click the badge.
+    const badge = page.locator('#code-badge')
+    await expect(badge).toBeVisible()
+    await badge.click()
+
+    // Ensure we have an error diagnostic.
+    await expect(page.locator('.cm-lint-marker-error').first()).toBeVisible()
+
+    // Hover over the error to see the error message
+    await page.hover('.cm-lint-marker-error')
+    await expect(
+      page
+        .getByText(
+          'sketch profile must lie entirely on one side of the revolution axis'
+        )
+        .first()
+    ).toBeVisible()
+  })
+
+  test('When error is not in view WITH LINTS you can click the badge to scroll to it', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+
+    // Load the app with the working starter code
+    await page.addInitScript((code) => {
+      localStorage.setItem('persistCode', code)
+    }, TEST_CODE_LONG_WITH_ERROR_OUT_OF_VIEW)
+
+    await page.setViewportSize({ width: 1200, height: 500 })
+    await u.waitForAuthSkipAppStart()
+
+    await page.waitForTimeout(1000)
+
+    // Ensure badge is present
+    const codePaneButtonHolder = page.locator('#code-button-holder')
+    await expect(codePaneButtonHolder).toContainText('notification')
+
+    // Ensure we have no errors in the gutter, since error out of view.
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    // click in the editor to focus it
+    await page.locator('.cm-content').click()
+
+    await page.waitForTimeout(500)
+
+    // go to the start of the editor and enter more text which will trigger
+    // a lint error.
+    // GO to the start of the editor.
+    await page.keyboard.press('ArrowUp')
+    await page.keyboard.press('ArrowUp')
+    await page.keyboard.press('ArrowUp')
+    await page.keyboard.press('ArrowUp')
+    await page.keyboard.press('ArrowUp')
+    await page.keyboard.press('ArrowUp')
+    await page.keyboard.press('ArrowUp')
+    await page.keyboard.press('ArrowUp')
+    await page.keyboard.press('ArrowUp')
+    await page.keyboard.press('ArrowUp')
+    await page.keyboard.press('Home')
+    await page.keyboard.type('const foo_bar = 1')
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+
+    // ensure we have a lint error
+    await expect(page.locator('.cm-lint-marker-info').first()).toBeVisible()
+
+    // Click the badge.
+    const badge = page.locator('#code-badge')
+    await expect(badge).toBeVisible()
+    await badge.click()
+
+    // Ensure we have an error diagnostic.
+    await expect(page.locator('.cm-lint-marker-error').first()).toBeVisible()
+
+    // Hover over the error to see the error message
+    await page.hover('.cm-lint-marker-error')
+    await expect(
+      page
+        .getByText(
+          'sketch profile must lie entirely on one side of the revolution axis'
+        )
+        .first()
+    ).toBeVisible()
+  })
+})

e2e/playwright/command-bar-tests.spec.ts

@@ -0,0 +1,363 @@
+import { test, expect } from '@playwright/test'
+
+import { getUtils, setup, tearDown } from './test-utils'
+import { KCL_DEFAULT_LENGTH } from 'lib/constants'
+
+test.beforeEach(async ({ context, page }) => {
+  await setup(context, page)
+})
+
+test.afterEach(async ({ page }, testInfo) => {
+  await tearDown(page, testInfo)
+})
+
+test.describe('Command bar tests', () => {
+  test('Extrude from command bar selects extrude line after', async ({
+    page,
+  }) => {
+    await page.addInitScript(async () => {
+      localStorage.setItem(
+        'persistCode',
+        `const sketch001 = startSketchOn('XY')
+    |> startProfileAt([-10, -10], %)
+    |> line([20, 0], %)
+    |> line([0, 20], %)
+    |> xLine(-20, %)
+    |> close(%)
+      `
+      )
+    })
+
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.closeDebugPanel()
+
+    // Click the line of code for xLine.
+    await page.getByText(`close(%)`).click() // TODO remove this and reinstate // await topHorzSegmentClick()
+    await page.waitForTimeout(100)
+
+    await page.getByRole('button', { name: 'Extrude' }).click()
+    await page.waitForTimeout(100)
+    await page.keyboard.press('Enter')
+    await page.waitForTimeout(100)
+    await page.keyboard.press('Enter')
+    await page.waitForTimeout(100)
+    await expect(page.locator('.cm-activeLine')).toHaveText(
+      `const extrude001 = extrude(${KCL_DEFAULT_LENGTH}, sketch001)`
+    )
+  })
+
+  test('Fillet from command bar', async ({ page }) => {
+    await page.addInitScript(async () => {
+      localStorage.setItem(
+        'persistCode',
+        `const sketch001 = startSketchOn('XY')
+  |> startProfileAt([-5, -5], %)
+  |> line([0, 10], %)
+  |> line([10, 0], %)
+  |> line([0, -10], %)
+  |> lineTo([profileStartX(%), profileStartY(%)], %)
+  |> close(%)
+const extrude001 = extrude(-10, sketch001)`
+      )
+    })
+
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1000, height: 500 })
+    await u.waitForAuthSkipAppStart()
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.closeDebugPanel()
+
+    const selectSegment = () => page.getByText(`line([0, -10], %)`).click()
+
+    await selectSegment()
+    await page.waitForTimeout(100)
+    await page.getByRole('button', { name: 'Fillet' }).click()
+    await page.waitForTimeout(100)
+    await page.keyboard.press('Enter')
+    await page.waitForTimeout(100)
+    await page.keyboard.press('Enter')
+    await page.waitForTimeout(100)
+    await expect(page.locator('.cm-activeLine')).toContainText(
+      `fillet({ radius: ${KCL_DEFAULT_LENGTH}, tags: [seg01] }, %)`
+    )
+  })
+
+  test('Command bar can change a setting, and switch back and forth between arguments', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1200, height: 500 })
+    await u.waitForAuthSkipAppStart()
+
+    const commandBarButton = page.getByRole('button', { name: 'Commands' })
+    const cmdSearchBar = page.getByPlaceholder('Search commands')
+    const themeOption = page.getByRole('option', {
+      name: 'theme',
+      exact: false,
+    })
+    const commandLevelArgButton = page.getByRole('button', { name: 'level' })
+    const commandThemeArgButton = page.getByRole('button', { name: 'value' })
+    // This selector changes after we set the setting
+    let commandOptionInput = page.getByPlaceholder('Select an option')
+
+    await expect(
+      page.getByRole('button', { name: 'Start Sketch' })
+    ).not.toBeDisabled()
+
+    // First try opening the command bar and closing it
+    await page
+      .getByRole('button', { name: 'Commands', exact: false })
+      .or(page.getByRole('button', { name: '⌘K' }))
+      .click()
+
+    await expect(cmdSearchBar).toBeVisible()
+    await page.keyboard.press('Escape')
+    await expect(cmdSearchBar).not.toBeVisible()
+
+    // Now try the same, but with the keyboard shortcut, check focus
+    await page.keyboard.press('Meta+K')
+    await expect(cmdSearchBar).toBeVisible()
+    await expect(cmdSearchBar).toBeFocused()
+
+    // Try typing in the command bar
+    await cmdSearchBar.fill('theme')
+    await expect(themeOption).toBeVisible()
+    await themeOption.click()
+    const themeInput = page.getByPlaceholder('Select an option')
+    await expect(themeInput).toBeVisible()
+    await expect(themeInput).toBeFocused()
+    // Select dark theme
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await expect(page.getByRole('option', { name: 'system' })).toHaveAttribute(
+      'data-headlessui-state',
+      'active'
+    )
+    await page.keyboard.press('Enter')
+
+    // Check the toast appeared
+    await expect(
+      page.getByText(`Set theme to "system" for this project`)
+    ).toBeVisible()
+    // Check that the theme changed
+    await expect(page.locator('body')).not.toHaveClass(`body-bg dark`)
+
+    commandOptionInput = page.getByPlaceholder('system')
+
+    // Test case for https://github.com/KittyCAD/modeling-app/issues/2882
+    await commandBarButton.click()
+    await cmdSearchBar.focus()
+    await cmdSearchBar.fill('theme')
+    await themeOption.click()
+    await expect(commandThemeArgButton).toBeDisabled()
+    await commandOptionInput.focus()
+    await commandOptionInput.fill('lig')
+    await commandLevelArgButton.click()
+    await expect(commandLevelArgButton).toBeDisabled()
+
+    // Test case for https://github.com/KittyCAD/modeling-app/issues/2881
+    await commandThemeArgButton.click()
+    await expect(commandThemeArgButton).toBeDisabled()
+    await expect(commandLevelArgButton).toHaveText('level: project')
+  })
+
+  test('Command bar keybinding works from code editor and can change a setting', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1200, height: 500 })
+    await u.waitForAuthSkipAppStart()
+
+    await expect(
+      page.getByRole('button', { name: 'Start Sketch' })
+    ).not.toBeDisabled()
+
+    // Put the cursor in the code editor
+    await page.locator('.cm-content').click()
+
+    // Now try the same, but with the keyboard shortcut, check focus
+    await page.keyboard.press('Meta+K')
+
+    let cmdSearchBar = page.getByPlaceholder('Search commands')
+    await expect(cmdSearchBar).toBeVisible()
+    await expect(cmdSearchBar).toBeFocused()
+
+    // Try typing in the command bar
+    await cmdSearchBar.fill('theme')
+    const themeOption = page.getByRole('option', {
+      name: 'Settings · app · theme',
+    })
+    await expect(themeOption).toBeVisible()
+    await themeOption.click()
+    const themeInput = page.getByPlaceholder('Select an option')
+    await expect(themeInput).toBeVisible()
+    await expect(themeInput).toBeFocused()
+    // Select dark theme
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await expect(page.getByRole('option', { name: 'system' })).toHaveAttribute(
+      'data-headlessui-state',
+      'active'
+    )
+    await page.keyboard.press('Enter')
+
+    // Check the toast appeared
+    await expect(
+      page.getByText(`Set theme to "system" for this project`)
+    ).toBeVisible()
+    // Check that the theme changed
+    await expect(page.locator('body')).not.toHaveClass(`body-bg dark`)
+  })
+
+  test('Can extrude from the command bar', async ({ page }) => {
+    await page.addInitScript(async () => {
+      localStorage.setItem(
+        'persistCode',
+        `const distance = sqrt(20)
+      const sketch001 = startSketchOn('XZ')
+      |> startProfileAt([-6.95, 10.98], %)
+      |> line([25.1, 0.41], %)
+      |> line([0.73, -20.93], %)
+      |> line([-23.44, 0.52], %)
+      |> close(%)
+          `
+      )
+    })
+
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    // Make sure the stream is up
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+
+    await expect(
+      page.getByRole('button', { name: 'Start Sketch' })
+    ).not.toBeDisabled()
+    await u.clearCommandLogs()
+    await page.getByRole('button', { name: 'Extrude' }).isEnabled()
+
+    let cmdSearchBar = page.getByPlaceholder('Search commands')
+    await page.keyboard.press('Meta+K')
+    await expect(cmdSearchBar).toBeVisible()
+
+    // Search for extrude command and choose it
+    await page.getByRole('option', { name: 'Extrude' }).click()
+
+    // Assert that we're on the selection step
+    await expect(page.getByRole('button', { name: 'selection' })).toBeDisabled()
+    // Select a face
+    await page.mouse.move(700, 200)
+    await page.mouse.click(700, 200)
+
+    // Assert that we're on the distance step
+    await expect(
+      page.getByRole('button', { name: 'distance', exact: false })
+    ).toBeDisabled()
+
+    // Assert that the an alternative variable name is chosen,
+    // since the default variable name is already in use (distance)
+    await page.getByRole('button', { name: 'Create new variable' }).click()
+    await expect(page.getByPlaceholder('Variable name')).toHaveValue(
+      'distance001'
+    )
+
+    const continueButton = page.getByRole('button', { name: 'Continue' })
+    const submitButton = page.getByRole('button', { name: 'Submit command' })
+    await continueButton.click()
+
+    // Review step and argument hotkeys
+    await expect(submitButton).toBeEnabled()
+    await expect(submitButton).toBeFocused()
+    await submitButton.press('Backspace')
+
+    // Assert we're back on the distance step
+    await expect(
+      page.getByRole('button', { name: 'distance', exact: false })
+    ).toBeDisabled()
+
+    await continueButton.click()
+    await submitButton.click()
+
+    // Check that the code was updated
+    await u.waitForCmdReceive('extrude')
+    // Unfortunately this indentation seems to matter for the test
+    await expect(page.locator('.cm-content')).toHaveText(
+      `const distance = sqrt(20)
+const distance001 = ${KCL_DEFAULT_LENGTH}
+const sketch001 = startSketchOn('XZ')
+    |> startProfileAt([-6.95, 10.98], %)
+    |> line([25.1, 0.41], %)
+    |> line([0.73, -20.93], %)
+    |> line([-23.44, 0.52], %)
+    |> close(%)
+const extrude001 = extrude(distance001, sketch001)`.replace(
+        /(\r\n|\n|\r)/gm,
+        ''
+      ) // remove newlines
+    )
+  })
+
+  test('Can switch between sketch tools via command bar', async ({ page }) => {
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1200, height: 500 })
+    await u.waitForAuthSkipAppStart()
+
+    const sketchButton = page.getByRole('button', { name: 'Start Sketch' })
+    const cmdBarButton = page.getByRole('button', { name: 'Commands' })
+    const rectangleToolCommand = page.getByRole('option', {
+      name: 'rectangle',
+    })
+    const rectangleToolButton = page.getByRole('button', {
+      name: 'Corner rectangle',
+      exact: true,
+    })
+    const lineToolCommand = page.getByRole('option', {
+      name: 'Line',
+    })
+    const lineToolButton = page.getByRole('button', {
+      name: 'Line',
+      exact: true,
+    })
+    const arcToolCommand = page.getByRole('option', { name: 'Tangential Arc' })
+    const arcToolButton = page.getByRole('button', {
+      name: 'Tangential Arc',
+      exact: true,
+    })
+
+    // Start a sketch
+    await sketchButton.click()
+    await page.mouse.click(700, 200)
+
+    // Switch between sketch tools via the command bar
+    await expect(lineToolButton).toHaveAttribute('aria-pressed', 'true')
+    await cmdBarButton.click()
+    await rectangleToolCommand.click()
+    await expect(rectangleToolButton).toHaveAttribute('aria-pressed', 'true')
+    await cmdBarButton.click()
+    await lineToolCommand.click()
+    await expect(lineToolButton).toHaveAttribute('aria-pressed', 'true')
+
+    // Click in the scene a couple times to draw a line
+    // so tangential arc is valid
+    await page.mouse.click(700, 200)
+    await page.mouse.move(700, 300, { steps: 5 })
+    await page.mouse.click(700, 300)
+
+    // switch to tangential arc via command bar
+    await cmdBarButton.click()
+    await arcToolCommand.click()
+    await expect(arcToolButton).toHaveAttribute('aria-pressed', 'true')
+  })
+})

e2e/playwright/copilot-ghost-test.spec.ts

@@ -0,0 +1,519 @@
+import { test, expect } from '@playwright/test'
+import { getUtils, setup, tearDown } from './test-utils'
+
+test.beforeEach(async ({ context, page }) => {
+  await setup(context, page)
+})
+
+test.afterEach(async ({ page }, testInfo) => {
+  await tearDown(page, testInfo)
+})
+test.describe('Copilot ghost text', () => {
+  test.skip(true, 'Needs to get covered again')
+
+  test('completes code in empty file', async ({ page }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // We should be able to hit Tab to accept the completion.
+    await page.keyboard.press('Tab')
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+
+    // Hit enter a few times.
+    await page.keyboard.press('Enter')
+    await page.keyboard.press('Enter')
+
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)    `
+    )
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+  })
+
+  test.skip('copilot disabled in sketch mode no select plane', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    // Click sketch mode.
+    await page.getByRole('button', { name: 'Start Sketch' }).click()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await page.waitForTimeout(500)
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    // Exit sketch mode.
+    await page.getByRole('button', { name: 'Exit Sketch' }).click()
+
+    await page.waitForTimeout(500)
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // We should be able to hit Tab to accept the completion.
+    await page.keyboard.press('Tab')
+    await expect(page.locator('.cm-content')).toContainText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+  })
+
+  test('copilot disabled in sketch mode after selecting plane', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    // Click sketch mode.
+    await expect(
+      page.getByRole('button', { name: 'Start Sketch' })
+    ).not.toBeDisabled()
+    await page.getByRole('button', { name: 'Start Sketch' }).click()
+
+    // select a plane
+    await page.mouse.click(700, 200)
+    await page.waitForTimeout(700) // wait for animation
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await page.waitForTimeout(500)
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `const sketch001 = startSketchOn('XZ')`
+    )
+
+    // Escape to exit the tool.
+    await u.openDebugPanel()
+    await u.closeDebugPanel()
+    await page.keyboard.press('Escape')
+    await page.waitForTimeout(500)
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await page.waitForTimeout(500)
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `const sketch001 = startSketchOn('XZ')`
+    )
+
+    // Escape again to exit sketch mode.
+    await u.openDebugPanel()
+    await u.closeDebugPanel()
+    await page.keyboard.press('Escape')
+    await page.waitForTimeout(500)
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+
+    await expect(page.locator('.cm-content')).toHaveText(
+      `const sketch001 = startSketchOn('XZ')fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // We should be able to hit Tab to accept the completion.
+    await page.keyboard.press('Tab')
+    await expect(page.locator('.cm-content')).toHaveText(
+      `const sketch001 = startSketchOn('XZ')fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+
+    // Hit enter a few times.
+    await page.keyboard.press('Enter')
+    await page.keyboard.press('Enter')
+
+    await expect(page.locator('.cm-content')).toHaveText(
+      `const sketch001 = startSketchOn('XZ')fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)    `
+    )
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+  })
+
+  test('ArrowUp in code rejects the suggestion', async ({ page }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // Going elsewhere in the code should hide the ghost text.
+    await page.keyboard.press('ArrowUp')
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+
+    await expect(page.locator('.cm-content')).toHaveText(``)
+  })
+
+  test('ArrowDown in code rejects the suggestion', async ({ page }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // Going elsewhere in the code should hide the ghost text.
+    await page.keyboard.press('ArrowDown')
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+
+    await expect(page.locator('.cm-content')).toHaveText(``)
+  })
+
+  test('ArrowLeft in code rejects the suggestion', async ({ page }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // Going elsewhere in the code should hide the ghost text.
+    await page.keyboard.press('ArrowLeft')
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+
+    await expect(page.locator('.cm-content')).toHaveText(``)
+  })
+
+  test('ArrowRight in code rejects the suggestion', async ({ page }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // Going elsewhere in the code should hide the ghost text.
+    await page.keyboard.press('ArrowRight')
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+
+    await expect(page.locator('.cm-content')).toHaveText(``)
+  })
+
+  test('Enter in code scoots it down', async ({ page }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // Going elsewhere in the code should hide the ghost text.
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+  })
+
+  test('Ctrl+shift+z in code rejects the suggestion', async ({ page }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+    const CtrlKey = process.platform === 'darwin' ? 'Meta' : 'Control'
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // Going elsewhere in the code should hide the ghost text.
+    await page.keyboard.down(CtrlKey)
+    await page.keyboard.down('Shift')
+    await page.keyboard.press('KeyZ')
+    await page.keyboard.up(CtrlKey)
+    await page.keyboard.up('Shift')
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+
+    await expect(page.locator('.cm-content')).toHaveText(``)
+  })
+
+  test('Ctrl+z in code rejects the suggestion and undos the last code', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    const CtrlKey = process.platform === 'darwin' ? 'Meta' : 'Control'
+
+    await page.waitForTimeout(800)
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    await page.keyboard.type('{thing: "blah"}', { delay: 0 })
+
+    await expect(page.locator('.cm-content')).toHaveText(`{thing: "blah"}`)
+
+    // We wanna make sure the code saves.
+    await page.waitForTimeout(800)
+
+    // Ctrl+z
+    await page.keyboard.down(CtrlKey)
+    await page.keyboard.press('KeyZ')
+    await page.keyboard.up(CtrlKey)
+
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    // Ctrl+shift+z
+    await page.keyboard.down(CtrlKey)
+    await page.keyboard.down('Shift')
+    await page.keyboard.press('KeyZ')
+    await page.keyboard.up(CtrlKey)
+    await page.keyboard.up('Shift')
+
+    await expect(page.locator('.cm-content')).toHaveText(`{thing: "blah"}`)
+
+    // We wanna make sure the code saves.
+    await page.waitForTimeout(800)
+
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `{thing: "blah"}fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // Once for the enter.
+    await page.keyboard.down(CtrlKey)
+    await page.keyboard.press('KeyZ')
+    await page.keyboard.up(CtrlKey)
+
+    // Once for the text.
+    await page.keyboard.down(CtrlKey)
+    await page.keyboard.press('KeyZ')
+    await page.keyboard.up(CtrlKey)
+
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+
+    // TODO when we make codemirror a widget, we can test this.
+    //await expect(page.locator('.cm-content')).toHaveText(``)
+  })
+
+  test('delete in code rejects the suggestion', async ({ page }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await page.keyboard.press('Enter')
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // Going elsewhere in the code should hide the ghost text.
+    await page.keyboard.press('Delete')
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+
+    await expect(page.locator('.cm-content')).toHaveText(``)
+  })
+
+  test('backspace in code rejects the suggestion', async ({ page }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await page.keyboard.press('Enter')
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // Going elsewhere in the code should hide the ghost text.
+    await page.keyboard.press('Backspace')
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+
+    await expect(page.locator('.cm-content')).toHaveText(``)
+  })
+
+  test('focus outside code pane rejects the suggestion', async ({ page }) => {
+    const u = await getUtils(page)
+    // const PUR = 400 / 37.5 //pixeltoUnitRatio
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.codeLocator.click()
+    await expect(page.locator('.cm-content')).toHaveText(``)
+
+    await expect(page.locator('.cm-ghostText')).not.toBeVisible()
+    await page.waitForTimeout(500)
+    await page.keyboard.press('Enter')
+    await expect(page.locator('.cm-ghostText').first()).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(
+      `fn cube = (pos, scale) => {  const sg = startSketchOn('XY')    |> startProfileAt(pos, %)    |> line([0, scale], %)    |> line([scale, 0], %)    |> line([0, -scale], %)  return sg}const part001 = cube([0,0], 20)    |> close(%)    |> extrude(20, %)`
+    )
+    await expect(page.locator('.cm-ghostText').first()).toHaveText(
+      `fn cube = (pos, scale) => {`
+    )
+
+    // Going outside the editor should hide the ghost text.
+    await page.mouse.move(0, 0)
+    await page
+      .getByRole('button', { name: 'Start Sketch' })
+      .waitFor({ state: 'visible' })
+    await page.getByRole('button', { name: 'Start Sketch' }).click()
+    await expect(page.locator('.cm-ghostText').first()).not.toBeVisible()
+
+    await expect(page.locator('.cm-content')).toHaveText(``)
+  })
+})

e2e/playwright/editor-tests.spec.ts

@@ -0,0 +1,867 @@
+import { test, expect } from '@playwright/test'
+import { uuidv4 } from 'lib/utils'
+import { getUtils, setup, tearDown } from './test-utils'
+
+test.beforeEach(async ({ context, page }) => {
+  await setup(context, page)
+})
+
+test.afterEach(async ({ page }, testInfo) => {
+  await tearDown(page, testInfo)
+})
+
+test.describe('Editor tests', () => {
+  test('can comment out code with ctrl+/', async ({ page }) => {
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1000, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+    const CtrlKey = process.platform === 'darwin' ? 'Meta' : 'Control'
+
+    // check no error to begin with
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    await u.codeLocator.click()
+    await page.keyboard.type(`const sketch001 = startSketchOn('XY')
+  |> startProfileAt([-10, -10], %)
+  |> line([20, 0], %)
+  |> line([0, 20], %)
+  |> line([-20, 0], %)
+  |> close(%)`)
+
+    await page.keyboard.down(CtrlKey)
+    await page.keyboard.press('/')
+    await page.keyboard.up(CtrlKey)
+
+    await expect(page.locator('.cm-content'))
+      .toHaveText(`const sketch001 = startSketchOn('XY')
+    |> startProfileAt([-10, -10], %)
+    |> line([20, 0], %)
+    |> line([0, 20], %)
+    |> line([-20, 0], %)
+    // |> close(%)`)
+
+    // uncomment the code
+    await page.keyboard.down(CtrlKey)
+    await page.keyboard.press('/')
+    await page.keyboard.up(CtrlKey)
+
+    await expect(page.locator('.cm-content'))
+      .toHaveText(`const sketch001 = startSketchOn('XY')
+    |> startProfileAt([-10, -10], %)
+    |> line([20, 0], %)
+    |> line([0, 20], %)
+    |> line([-20, 0], %)
+    |> close(%)`)
+  })
+
+  test('if you click the format button it formats your code', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1000, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    // check no error to begin with
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    await u.codeLocator.click()
+    await page.keyboard.type(`const sketch001 = startSketchOn('XY')
+  |> startProfileAt([-10, -10], %)
+  |> line([20, 0], %)
+  |> line([0, 20], %)
+  |> line([-20, 0], %)
+  |> close(%)`)
+    await page.locator('#code-pane button:first-child').click()
+    await page.locator('button:has-text("Format code")').click()
+
+    await expect(page.locator('.cm-content'))
+      .toHaveText(`const sketch001 = startSketchOn('XY')
+    |> startProfileAt([-10, -10], %)
+    |> line([20, 0], %)
+    |> line([0, 20], %)
+    |> line([-20, 0], %)
+    |> close(%)`)
+  })
+
+  test('fold gutters work', async ({ page }) => {
+    const u = await getUtils(page)
+
+    const fullCode = `const sketch001 = startSketchOn('XY')
+     |> startProfileAt([-10, -10], %)
+     |> line([20, 0], %)
+     |> line([0, 20], %)
+     |> line([-20, 0], %)
+     |> close(%)`
+    await page.addInitScript(async () => {
+      localStorage.setItem(
+        'persistCode',
+        `const sketch001 = startSketchOn('XY')
+     |> startProfileAt([-10, -10], %)
+     |> line([20, 0], %)
+     |> line([0, 20], %)
+     |> line([-20, 0], %)
+     |> close(%)`
+      )
+    })
+    await page.setViewportSize({ width: 1000, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    // TODO: Jess needs to fix this but you have to mod the code to get them to show
+    // up, its an annoying codemirror thing.
+    await page.locator('.cm-content').click()
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('Enter')
+
+    const foldGutterFoldLine = page.locator('[title="Fold line"]')
+    const foldGutterUnfoldLine = page.locator('[title="Unfold line"]')
+
+    await expect(page.locator('.cm-content')).toHaveText(fullCode)
+
+    // check no error to begin with
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    // Make sure we have a fold gutter
+    await expect(foldGutterFoldLine).toBeVisible()
+    await expect(foldGutterUnfoldLine).not.toBeVisible()
+
+    // Collapse the code
+    await foldGutterFoldLine.click()
+
+    await expect(page.locator('.cm-content')).toHaveText(
+      `const sketch001 = startSketchOn('XY')…   `
+    )
+    await expect(page.locator('.cm-content')).not.toHaveText(fullCode)
+    await expect(foldGutterFoldLine).not.toBeVisible()
+    await expect(foldGutterUnfoldLine.nth(1)).toBeVisible()
+
+    // Expand the code
+    await foldGutterUnfoldLine.nth(1).click()
+    await expect(page.locator('.cm-content')).toHaveText(fullCode)
+
+    // Delete all the code.
+    await page.locator('.cm-content').click()
+    // Select all
+    await page.keyboard.press('Control+A')
+    await page.keyboard.press('Backspace')
+    await page.keyboard.press('Meta+A')
+    await page.keyboard.press('Backspace')
+
+    await expect(page.locator('.cm-content')).toHaveText(``)
+    await expect(page.locator('.cm-content')).not.toHaveText(fullCode)
+
+    await expect(foldGutterUnfoldLine).not.toBeVisible()
+    await expect(foldGutterFoldLine).not.toBeVisible()
+  })
+
+  test('hover over functions shows function description', async ({ page }) => {
+    const u = await getUtils(page)
+    await page.addInitScript(async () => {
+      localStorage.setItem(
+        'persistCode',
+        `const sketch001 = startSketchOn('XY')
+  |> startProfileAt([-10, -10], %)
+  |> line([20, 0], %)
+  |> line([0, 20], %)
+  |> line([-20, 0], %)
+  |> close(%)`
+      )
+    })
+    await page.setViewportSize({ width: 1000, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    // check no error to begin with
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.closeDebugPanel()
+
+    // focus the editor
+    await u.codeLocator.click()
+
+    // Hover over  the startSketchOn function
+    await page.getByText('startSketchOn').hover()
+    await expect(page.locator('.hover-tooltip')).toBeVisible()
+    await expect(
+      page.getByText(
+        'Start a new 2-dimensional sketch on a specific plane or face'
+      )
+    ).toBeVisible()
+
+    // Hover over the line function
+    await page.getByText('line').first().hover()
+    await expect(page.locator('.hover-tooltip')).toBeVisible()
+    await expect(page.getByText('Draw a line')).toBeVisible()
+  })
+
+  test('if you use the format keyboard binding it formats your code', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+    await page.addInitScript(async () => {
+      localStorage.setItem(
+        'persistCode',
+        `const sketch001 = startSketchOn('XY')
+  |> startProfileAt([-10, -10], %)
+  |> line([20, 0], %)
+  |> line([0, 20], %)
+  |> line([-20, 0], %)
+  |> close(%)`
+      )
+      localStorage.setItem('disableAxis', 'true')
+    })
+    await page.setViewportSize({ width: 1000, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    // check no error to begin with
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.closeDebugPanel()
+
+    // focus the editor
+    await u.codeLocator.click()
+
+    // Hit alt+shift+f to format the code
+    await page.keyboard.press('Alt+Shift+KeyF')
+
+    await expect(page.locator('.cm-content'))
+      .toHaveText(`const sketch001 = startSketchOn('XY')
+    |> startProfileAt([-10, -10], %)
+    |> line([20, 0], %)
+    |> line([0, 20], %)
+    |> line([-20, 0], %)
+    |> close(%)`)
+  })
+
+  test('if you write kcl with lint errors you get lints', async ({ page }) => {
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1000, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    // check no error to begin with
+    await expect(page.locator('.cm-lint-marker-info')).not.toBeVisible()
+
+    await u.codeLocator.click()
+    await page.keyboard.type('const my_snake_case_var = 5')
+    await page.keyboard.press('Enter')
+    await page.keyboard.type('const myCamelCaseVar = 5')
+    await page.keyboard.press('Enter')
+
+    // press arrows to clear autocomplete
+    await page.keyboard.press('ArrowLeft')
+    await page.keyboard.press('ArrowRight')
+
+    // error in guter
+    await expect(page.locator('.cm-lint-marker-info').first()).toBeVisible()
+
+    // error text on hover
+    await page.hover('.cm-lint-marker-info')
+    await expect(
+      page.getByText('Identifiers must be lowerCamelCase').first()
+    ).toBeVisible()
+
+    // select the line that's causing the error and delete it
+    await page.getByText('const my_snake_case_var = 5').click()
+    await page.keyboard.press('End')
+    await page.keyboard.down('Shift')
+    await page.keyboard.press('Home')
+    await page.keyboard.up('Shift')
+    await page.keyboard.press('Backspace')
+
+    // wait for .cm-lint-marker-info not to be visible
+    await expect(page.locator('.cm-lint-marker-info')).not.toBeVisible()
+  })
+
+  test('if you fixup kcl errors you clear lints', async ({ page }) => {
+    const u = await getUtils(page)
+    await page.addInitScript(async () => {
+      localStorage.setItem(
+        'persistCode',
+        `const sketch001 = startSketchOn('XZ')
+  |> startProfileAt([3.29, 7.86], %)
+  |> line([2.48, 2.44], %)
+  |> line([2.66, 1.17], %)
+  |> close(%)
+  `
+      )
+    })
+
+    await page.setViewportSize({ width: 1000, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    // check no error to begin with
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    await u.codeLocator.click()
+
+    await page.getByText(' |> line([2.48, 2.44], %)').click()
+
+    await expect(
+      page.locator('.cm-lint-marker-error').first()
+    ).not.toBeVisible()
+    await page.keyboard.press('End')
+    await page.keyboard.press('Backspace')
+
+    await expect(page.locator('.cm-lint-marker-error').first()).toBeVisible()
+    await page.keyboard.type(')')
+    await expect(
+      page.locator('.cm-lint-marker-error').first()
+    ).not.toBeVisible()
+  })
+
+  test('if you write invalid kcl you get inlined errors', async ({ page }) => {
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1000, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    // check no error to begin with
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    /* add the following code to the editor ($ error is not a valid line)
+      $ error
+      const topAng = 30
+      const bottomAng = 25
+     */
+    await u.codeLocator.click()
+    await page.keyboard.type('$ error')
+
+    // press arrows to clear autocomplete
+    await page.keyboard.press('ArrowLeft')
+    await page.keyboard.press('ArrowRight')
+
+    await page.keyboard.press('Enter')
+    await page.keyboard.type('const topAng = 30')
+    await page.keyboard.press('Enter')
+    await page.keyboard.type('const bottomAng = 25')
+    await page.keyboard.press('Enter')
+
+    // error in guter
+    await expect(page.locator('.cm-lint-marker-error')).toBeVisible()
+
+    // error text on hover
+    await page.hover('.cm-lint-marker-error')
+    await expect(page.getByText('Unexpected token').first()).toBeVisible()
+
+    // select the line that's causing the error and delete it
+    await page.getByText('$ error').click()
+    await page.keyboard.press('End')
+    await page.keyboard.down('Shift')
+    await page.keyboard.press('Home')
+    await page.keyboard.up('Shift')
+    await page.keyboard.press('Backspace')
+
+    // wait for .cm-lint-marker-error not to be visible
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    // let's check we get an error when defining the same variable twice
+    await page.getByText('const bottomAng = 25').click()
+    await page.keyboard.press('Enter')
+    await page.keyboard.type("// Let's define the same thing twice")
+    await page.keyboard.press('Enter')
+    await page.keyboard.type('const topAng = 42')
+    await page.keyboard.press('ArrowLeft')
+
+    await expect(page.locator('.cm-lint-marker-error')).toBeVisible()
+    await expect(
+      page.locator('.cm-lint-marker.cm-lint-marker-error')
+    ).toBeVisible()
+
+    await page.locator('.cm-lint-marker.cm-lint-marker-error').hover()
+    await expect(page.locator('.cm-diagnosticText').first()).toBeVisible()
+    await expect(
+      page.getByText('Cannot redefine `topAng`').first()
+    ).toBeVisible()
+
+    const secondTopAng = page.getByText('topAng').first()
+    await secondTopAng?.dblclick()
+    await page.keyboard.type('otherAng')
+
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+  })
+
+  test('error with 2 source ranges gets 2 diagnostics', async ({ page }) => {
+    const u = await getUtils(page)
+    await page.addInitScript(async () => {
+      localStorage.setItem(
+        'persistCode',
+        `const length = .750
+  const width = 0.500
+  const height = 0.500
+  const dia = 4
+  
+  fn squareHole = (l, w) => {
+    const squareHoleSketch = startSketchOn('XY')
+    |> startProfileAt([-width / 2, -length / 2], %)
+    |> lineTo([width / 2, -length / 2], %)
+    |> lineTo([width / 2, length / 2], %)
+    |> lineTo([-width / 2, length / 2], %)
+    |> close(%)
+    return squareHoleSketch
+  }
+  `
+      )
+    })
+    await page.setViewportSize({ width: 1000, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.closeDebugPanel()
+
+    // check no error to begin with
+    await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
+
+    // Click on the bottom of the code editor to add a new line
+    await u.codeLocator.click()
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('ArrowDown')
+    await page.keyboard.press('Enter')
+    await page.keyboard.type(`const extrusion = startSketchOn('XY')
+    |> circle([0, 0], dia/2, %)
+  |> hole(squareHole(length, width, height), %)
+  |> extrude(height, %)`)
+
+    // error in gutter
+    await expect(page.locator('.cm-lint-marker-error').first()).toBeVisible()
+    await page.hover('.cm-lint-marker-error:first-child')
+    await expect(
+      page.getByText('Expected 2 arguments, got 3').first()
+    ).toBeVisible()
+
+    // Make sure there are two diagnostics
+    await expect(page.locator('.cm-lint-marker-error')).toHaveCount(2)
+  })
+  test('if your kcl gets an error from the engine it is inlined', async ({
+    page,
+  }) => {
+    const u = await getUtils(page)
+    await page.addInitScript(async () => {
+      localStorage.setItem(
+        'persistCode',
+        `const box = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
+  |> line([0, 10], %)
+  |> line([10, 0], %)
+  |> line([0, -10], %, $revolveAxis)
+  |> close(%)
+  |> extrude(10, %)
+
+  const sketch001 = startSketchOn(box, revolveAxis)
+  |> startProfileAt([5, 10], %)
+  |> line([0, -10], %)
+  |> line([2, 0], %)
+  |> line([0, -10], %)
+  |> close(%)
+  |> revolve({
+  axis: revolveAxis,
+  angle: 90
+  }, %)
+      `
+      )
+    })
+
+    await page.setViewportSize({ width: 1000, height: 500 })
+
+    await page.goto('/')
+    await u.waitForPageLoad()
+
+    await expect(page.locator('.cm-lint-marker-error')).toBeVisible()
+
+    // error text on hover
+    await page.hover('.cm-lint-marker-error')
+    const searchText =
+      'sketch profile must lie entirely on one side of the revolution axis'
+    await expect(page.getByText(searchText)).toBeVisible()
+  })
+  test.describe('Autocomplete works', () => {
+    test('with enter/click to accept the completion', async ({ page }) => {
+      const u = await getUtils(page)
+      // const PUR = 400 / 37.5 //pixeltoUnitRatio
+      await page.setViewportSize({ width: 1200, height: 500 })
+
+      await u.waitForAuthSkipAppStart()
+
+      // this test might be brittle as we add and remove functions
+      // but should also be easy to update.
+      // tests clicking on an option, selection the first option
+      // and arrowing down to an option
+
+      await u.codeLocator.click()
+      await page.keyboard.type('const sketch001 = start')
+
+      // expect there to be six auto complete options
+      await expect(page.locator('.cm-completionLabel')).toHaveCount(8)
+      // this makes sure we can accept a completion with click
+      await page.getByText('startSketchOn').click()
+      await page.keyboard.type("'XZ'")
+      await page.keyboard.press('Tab')
+      await page.keyboard.press('Enter')
+      await page.keyboard.type('  |> startProfi')
+      // expect there be a single auto complete option that we can just hit enter on
+      await expect(page.locator('.cm-completionLabel')).toBeVisible()
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Enter') // accepting the auto complete, not a new line
+
+      await page.keyboard.press('Tab')
+      await page.waitForTimeout(100)
+      await page.keyboard.type('12')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Tab')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Tab')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Tab')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Enter')
+      await page.waitForTimeout(100)
+      await page.keyboard.type('  |> lin')
+
+      await expect(page.locator('.cm-tooltip-autocomplete')).toBeVisible()
+      await page.waitForTimeout(100)
+      // press arrow down twice then enter to accept xLine
+      await page.keyboard.press('ArrowDown')
+      await page.keyboard.press('ArrowDown')
+      await page.keyboard.press('Enter')
+      // finish line with comment
+      await page.keyboard.type('5')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Tab')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Tab')
+
+      await page.keyboard.type(' // ')
+      // Since we need to parse the ast to know we are in a comment we gotta hang tight.
+      await page.waitForTimeout(700)
+      await page.keyboard.type('lin ')
+      await page.waitForTimeout(200)
+      // there shouldn't be any auto complete options for 'lin' in the comment
+      await expect(page.locator('.cm-completionLabel')).not.toBeVisible()
+
+      await expect(page.locator('.cm-content'))
+        .toHaveText(`const sketch001 = startSketchOn('XZ')
+    |> startProfileAt([3.14, 12], %)
+    |> xLine(5, %) // lin`)
+    })
+
+    test('with tab to accept the completion', async ({ page }) => {
+      const u = await getUtils(page)
+      // const PUR = 400 / 37.5 //pixeltoUnitRatio
+      await page.setViewportSize({ width: 1200, height: 500 })
+
+      await u.waitForAuthSkipAppStart()
+
+      // this test might be brittle as we add and remove functions
+      // but should also be easy to update.
+      // tests clicking on an option, selection the first option
+      // and arrowing down to an option
+
+      await u.codeLocator.click()
+      await page.keyboard.type('const sketch001 = startSketchO')
+      await page.waitForTimeout(100)
+
+      // Make sure just hitting tab will take the only one left
+      await expect(page.locator('.cm-completionLabel')).toHaveCount(1)
+      await page.waitForTimeout(500)
+      await page.keyboard.press('ArrowDown')
+      await page.keyboard.press('Tab')
+      await page.waitForTimeout(500)
+      await page.keyboard.type("'XZ'")
+      await page.keyboard.press('Tab')
+      await page.keyboard.press('Enter')
+      await page.keyboard.type('  |> startProfi')
+      // expect there be a single auto complete option that we can just hit enter on
+      await expect(page.locator('.cm-completionLabel')).toBeVisible()
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Tab') // accepting the auto complete, not a new line
+
+      await page.keyboard.press('Tab')
+      await page.keyboard.type('12')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Tab')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Tab')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Tab')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Enter')
+      await page.waitForTimeout(100)
+      await page.keyboard.type('  |> lin')
+
+      await expect(page.locator('.cm-tooltip-autocomplete')).toBeVisible()
+      await page.waitForTimeout(100)
+      // press arrow down twice then tab to accept xLine
+      await page.keyboard.press('ArrowDown')
+      await page.keyboard.press('ArrowDown')
+      await page.keyboard.press('Tab')
+      // finish line with comment
+      await page.keyboard.type('5')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Tab')
+      await page.waitForTimeout(100)
+      await page.keyboard.press('Tab')
+
+      await page.keyboard.type(' // ')
+      // Since we need to parse the ast to know we are in a comment we gotta hang tight.
+      await page.waitForTimeout(700)
+      await page.keyboard.type('lin ')
+      await page.waitForTimeout(200)
+      // there shouldn't be any auto complete options for 'lin' in the comment
+      await expect(page.locator('.cm-completionLabel')).not.toBeVisible()
+
+      await expect(page.locator('.cm-content'))
+        .toHaveText(`const sketch001 = startSketchOn('XZ')
+    |> startProfileAt([3.14, 12], %)
+    |> xLine(5, %) // lin`)
+    })
+  })
+  test('Can undo a click and point extrude with ctrl+z', async ({ page }) => {
+    const u = await getUtils(page)
+    await page.addInitScript(async () => {
+      localStorage.setItem(
+        'persistCode',
+        `const sketch001 = startSketchOn('XZ')
+    |> startProfileAt([4.61, -14.01], %)
+    |> line([12.73, -0.09], %)
+    |> tangentialArcTo([24.95, -5.38], %)
+    |> close(%)`
+      )
+    })
+
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+    await expect(
+      page.getByRole('button', { name: 'Start Sketch' })
+    ).not.toBeDisabled()
+
+    await page.waitForTimeout(100)
+    await u.openAndClearDebugPanel()
+    await u.sendCustomCmd({
+      type: 'modeling_cmd_req',
+      cmd_id: uuidv4(),
+      cmd: {
+        type: 'default_camera_look_at',
+        vantage: { x: 0, y: -1250, z: 580 },
+        center: { x: 0, y: 0, z: 0 },
+        up: { x: 0, y: 0, z: 1 },
+      },
+    })
+    await page.waitForTimeout(100)
+    await u.sendCustomCmd({
+      type: 'modeling_cmd_req',
+      cmd_id: uuidv4(),
+      cmd: {
+        type: 'default_camera_get_settings',
+      },
+    })
+    await page.waitForTimeout(100)
+
+    const startPX = [665, 458]
+
+    const dragPX = 40
+
+    await page.getByText('startProfileAt([4.61, -14.01], %)').click()
+    await expect(page.getByRole('button', { name: 'Extrude' })).toBeVisible()
+    await page.getByRole('button', { name: 'Extrude' }).click()
+
+    await expect(page.getByTestId('command-bar')).toBeVisible()
+    await page.waitForTimeout(100)
+
+    await page.keyboard.press('Enter')
+    await page.waitForTimeout(100)
+    await expect(page.getByText('Confirm Extrude')).toBeVisible()
+    await page.keyboard.press('Enter')
+    await page.waitForTimeout(100)
+
+    // expect the code to have changed
+    await expect(page.locator('.cm-content')).toHaveText(
+      `const sketch001 = startSketchOn('XZ')  |> startProfileAt([4.61, -14.01], %)  |> line([12.73, -0.09], %)  |> tangentialArcTo([24.95, -5.38], %)  |> close(%)const extrude001 = extrude(5, sketch001)`
+    )
+
+    // Now hit undo
+    await page.keyboard.down('Control')
+    await page.keyboard.press('KeyZ')
+    await page.keyboard.up('Control')
+
+    await page.waitForTimeout(100)
+    await expect(page.locator('.cm-content'))
+      .toHaveText(`const sketch001 = startSketchOn('XZ')
+    |> startProfileAt([4.61, -14.01], %)
+    |> line([12.73, -0.09], %)
+    |> tangentialArcTo([24.95, -5.38], %)
+    |> close(%)`)
+  })
+
+  // failing for the same reason as "Can edit a sketch that has been extruded in the same pipe"
+  // please fix together
+  test.fixme('Can undo a sketch modification with ctrl+z', async ({ page }) => {
+    const u = await getUtils(page)
+    await page.addInitScript(async () => {
+      localStorage.setItem(
+        'persistCode',
+        `const sketch001 = startSketchOn('XZ')
+    |> startProfileAt([4.61, -14.01], %)
+    |> line([12.73, -0.09], %)
+    |> tangentialArcTo([24.95, -5.38], %)
+    |> close(%)
+    |> extrude(5, %)`
+      )
+    })
+
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+    await expect(
+      page.getByRole('button', { name: 'Start Sketch' })
+    ).not.toBeDisabled()
+
+    await page.waitForTimeout(100)
+    await u.openAndClearDebugPanel()
+    await u.sendCustomCmd({
+      type: 'modeling_cmd_req',
+      cmd_id: uuidv4(),
+      cmd: {
+        type: 'default_camera_look_at',
+        vantage: { x: 0, y: -1250, z: 580 },
+        center: { x: 0, y: 0, z: 0 },
+        up: { x: 0, y: 0, z: 1 },
+      },
+    })
+    await page.waitForTimeout(100)
+    await u.sendCustomCmd({
+      type: 'modeling_cmd_req',
+      cmd_id: uuidv4(),
+      cmd: {
+        type: 'default_camera_get_settings',
+      },
+    })
+    await page.waitForTimeout(100)
+
+    const startPX = [665, 458]
+
+    const dragPX = 40
+
+    await page.getByText('startProfileAt([4.61, -14.01], %)').click()
+    await expect(
+      page.getByRole('button', { name: 'Edit Sketch' })
+    ).toBeVisible()
+    await page.getByRole('button', { name: 'Edit Sketch' }).click()
+    await page.waitForTimeout(400)
+    let prevContent = await page.locator('.cm-content').innerText()
+
+    await expect(page.getByTestId('segment-overlay')).toHaveCount(2)
+
+    // drag startProfieAt handle
+    await page.dragAndDrop('#stream', '#stream', {
+      sourcePosition: { x: startPX[0], y: startPX[1] },
+      targetPosition: { x: startPX[0] + dragPX, y: startPX[1] + dragPX },
+    })
+    await page.waitForTimeout(100)
+    await expect(page.locator('.cm-content')).not.toHaveText(prevContent)
+    prevContent = await page.locator('.cm-content').innerText()
+
+    // drag line handle
+    // we wait so it saves the code
+    await page.waitForTimeout(800)
+
+    const lineEnd = await u.getBoundingBox('[data-overlay-index="0"]')
+    await page.waitForTimeout(100)
+    await page.dragAndDrop('#stream', '#stream', {
+      sourcePosition: { x: lineEnd.x - 5, y: lineEnd.y },
+      targetPosition: { x: lineEnd.x + dragPX, y: lineEnd.y + dragPX },
+    })
+    await expect(page.locator('.cm-content')).not.toHaveText(prevContent)
+    prevContent = await page.locator('.cm-content').innerText()
+
+    // we wait so it saves the code
+    await page.waitForTimeout(800)
+
+    // drag tangentialArcTo handle
+    const tangentEnd = await u.getBoundingBox('[data-overlay-index="1"]')
+    await page.dragAndDrop('#stream', '#stream', {
+      sourcePosition: { x: tangentEnd.x, y: tangentEnd.y - 5 },
+      targetPosition: {
+        x: tangentEnd.x + dragPX,
+        y: tangentEnd.y + dragPX,
+      },
+    })
+    await page.waitForTimeout(100)
+    await expect(page.locator('.cm-content')).not.toHaveText(prevContent)
+
+    // expect the code to have changed
+    await expect(page.locator('.cm-content'))
+      .toHaveText(`const sketch001 = startSketchOn('XZ')
+    |> startProfileAt([7.12, -16.82], %)
+    |> line([15.4, -2.74], %)
+    |> tangentialArcTo([24.95, -5.38], %)
+    |> line([2.65, -2.69], %)
+    |> close(%)
+    |> extrude(5, %)`)
+
+    // Hit undo
+    await page.keyboard.down('Control')
+    await page.keyboard.press('KeyZ')
+    await page.keyboard.up('Control')
+
+    await expect(page.locator('.cm-content'))
+      .toHaveText(`const sketch001 = startSketchOn('XZ')
+    |> startProfileAt([7.12, -16.82], %)
+    |> line([15.4, -2.74], %)
+    |> tangentialArcTo([24.95, -5.38], %)
+    |> close(%)
+    |> extrude(5, %)`)
+
+    // Hit undo again.
+    await page.keyboard.down('Control')
+    await page.keyboard.press('KeyZ')
+    await page.keyboard.up('Control')
+
+    await expect(page.locator('.cm-content'))
+      .toHaveText(`const sketch001 = startSketchOn('XZ')
+    |> startProfileAt([7.12, -16.82], %)
+    |> line([12.73, -0.09], %)
+    |> tangentialArcTo([24.95, -5.38], %)
+    |> close(%)
+    |> extrude(5, %)`)
+
+    // Hit undo again.
+    await page.keyboard.down('Control')
+    await page.keyboard.press('KeyZ')
+    await page.keyboard.up('Control')
+
+    await page.waitForTimeout(100)
+    await expect(page.locator('.cm-content'))
+      .toHaveText(`const sketch001 = startSketchOn('XZ')
+    |> startProfileAt([4.61, -14.01], %)
+    |> line([12.73, -0.09], %)
+    |> tangentialArcTo([24.95, -5.38], %)
+    |> close(%)
+    |> extrude(5, %)`)
+  })
+})