Clean up for PR

Fixes #6256

.github/workflows/build-apps.yml

@@ -10,7 +10,8 @@ on:
       - 'nightly-v[0-9]+.[0-9]+.[0-9]+'
 
 env:
-  IS_RELEASE: ${{ github.ref_type == 'tag' && startsWith(github.ref_name, 'v') }}
+  # IS_RELEASE: ${{ github.ref_type == 'tag' && startsWith(github.ref_name, 'v') }}
+  IS_RELEASE: true
   IS_NIGHTLY: ${{ github.ref_type == 'tag' && startsWith(github.ref_name, 'nightly-v') }}
 
 concurrency:
@@ -99,11 +100,11 @@ jobs:
           yarn files:set-version
           yarn files:flip-to-nightly
 
-      - name: Set release version
-        if: ${{ env.IS_RELEASE == 'true' }}
-        run: |
-          export VERSION=${GITHUB_REF_NAME#v}
-          yarn files:set-version
+      # - name: Set release version
+      #   if: ${{ env.IS_RELEASE == 'true' }}
+      #   run: |
+      #     export VERSION=${GITHUB_REF_NAME#v}
+      #     yarn files:set-version
 
       - uses: actions/upload-artifact@v4
         with:
@@ -183,30 +184,32 @@ jobs:
           max_attempts: 3
           command: yarn install
 
+      # Next steps are from Digicert docs at
+      # https://docs.digicert.com/en/digicert-keylocker/ci-cd-integrations/scripts/github/scripts-for-signing-using-ksp-library-on-github.html#ksp-signing-using-github-action-488726
       - name: Prepare certificate and variables (Windows only)
         if: ${{ (env.IS_RELEASE == 'true' || env.IS_NIGHTLY == 'true') && matrix.os == 'windows-2022' }}
         run: |
-          echo "${{secrets.SM_CLIENT_CERT_FILE_B64 }}" | base64 --decode > /d/Certificate_pkcs12.p12
-          cat /d/Certificate_pkcs12.p12
-          echo "::set-output name=version::${GITHUB_REF#refs/tags/v}"
+          CERTIFICATE_PATH=$RUNNER_TEMP/certificate.p12
+          echo "$SM_CLIENT_CERT_FILE_B64" | base64 --decode > $CERTIFICATE_PATH
+          echo "SM_CLIENT_CERT_FILE=$CERTIFICATE_PATH" >> "$GITHUB_ENV"
           echo "SM_HOST=${{ secrets.SM_HOST }}" >> "$GITHUB_ENV"
           echo "SM_API_KEY=${{ secrets.SM_API_KEY }}" >> "$GITHUB_ENV"
-          echo "SM_CLIENT_CERT_FILE=D:\\Certificate_pkcs12.p12" >> "$GITHUB_ENV"
           echo "SM_CLIENT_CERT_PASSWORD=${{ secrets.SM_CLIENT_CERT_PASSWORD }}" >> "$GITHUB_ENV"
           echo "C:\Program Files (x86)\Windows Kits\10\App Certification Kit" >> $GITHUB_PATH
           echo "C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.8 Tools" >> $GITHUB_PATH
-          echo "C:\Program Files\DigiCert\DigiCert One Signing Manager Tools" >> $GITHUB_PATH
+          echo "C:\Program Files\DigiCert\DigiCert Keylocker Tools" >> $GITHUB_PATH
         shell: bash
 
       - name: Setup certicate with SSM KSP (Windows only)
         if: ${{ (env.IS_RELEASE == 'true' || env.IS_NIGHTLY == 'true') && matrix.os == 'windows-2022' }}
         run: |
-          curl -X GET  https://one.digicert.com/signingmanager/api-ui/v1/releases/smtools-windows-x64.msi/download -H "x-api-key:%SM_API_KEY%" -o smtools-windows-x64.msi
-          msiexec /i smtools-windows-x64.msi /quiet /qn
+          curl -X GET  https://one.digicert.com/signingmanager/api-ui/v1/releases/Keylockertools-windows-x64.msi/download -H "x-api-key:%SM_API_KEY%" -o Keylockertools-windows-x64.msi
+          msiexec /i Keylockertools-windows-x64.msi /quiet /qn
           smksp_registrar.exe list
           smctl.exe keypair ls
           C:\Windows\System32\certutil.exe -csp "DigiCert Signing Manager KSP" -key -user
           smksp_cert_sync.exe
+          smctl windows certsync
         shell: cmd
 
       - name: Build the app (debug)
@@ -225,8 +228,8 @@ jobs:
           CSC_LINK: ${{ secrets.APPLE_CERTIFICATE }}
           CSC_KEY_PASSWORD: ${{ secrets.APPLE_CERTIFICATE_PASSWORD }}
           CSC_KEYCHAIN: ${{ secrets.APPLE_SIGNING_IDENTITY }}
-          WINDOWS_CERTIFICATE_THUMBPRINT: ${{ secrets.WINDOWS_CERTIFICATE_THUMBPRINT }}
-          DEBUG: "electron-notarize*"
+          # DEBUG: "electron-notarize*"
+          DEBUG: electron-builder
         # TODO: Fix electron-notarize flakes. The logs above should help gather more data on failures
         uses: nick-fields/retry@v3.0.2
         with:

e2e/playwright/prompt-to-edit-snapshot-tests.spec.ts

@@ -72,7 +72,6 @@ test.describe('edit with AI example snapshots', () => {
       const submittingToast = page.getByText('Submitting to Text-to-CAD API...')
 
       await test.step('wait for scene to load select body and check selection came through', async () => {
-        await scene.expectPixelColor([134, 134, 134], body1CapCoords, 15)
         await clickBody1Cap()
         await scene.expectPixelColor(yellow, body1CapCoords, 20)
         await editor.expectState({

e2e/playwright/prompt-to-edit.spec.ts

@@ -51,6 +51,7 @@ test.describe('Prompt-to-edit tests', { tag: '@skipWin' }, () => {
         page,
         scene,
       }) => {
+        test.fixme(orRunWhenFullSuiteEnabled())
         await context.addInitScript((file) => {
           localStorage.setItem('persistCode', file)
         }, file)
@@ -259,6 +260,7 @@ test.describe('Prompt-to-edit tests', { tag: '@skipWin' }, () => {
     page,
     scene,
   }) => {
+    test.fixme(orRunWhenFullSuiteEnabled())
     const body1CapCoords = { x: 571, y: 311 }
     const body2WallCoords = { x: 620, y: 152 }
     const [clickBody1Cap] = scene.makeMouseHelpers(

electron-builder.yml

@@ -33,10 +33,12 @@ win:
         - x64
         - arm64
   signtoolOptions:
-    sign: "./scripts/sign-win.js"
+    certificateSha1: F4C9A52FF7BC26EE5E054946F6B11DEEA94C748D
     signingHashAlgorithms:
       - sha256
-    publisherName: "KittyCAD Inc" # needs to be exactly like on Digicert
+    publisherName: "KittyCAD Inc"
+    certificateSubjectName: "KittyCAD Inc"
+    rfc3161TimeStampServer: http://timestamp.digicert.com
   icon: "assets/icon.ico"
   fileAssociations:
     - ext: kcl

rust/Cargo.lock

@@ -2033,9 +2033,9 @@ dependencies = [
 
 [[package]]
 name = "kittycad-modeling-cmds"
-version = "0.2.108"
+version = "0.2.110"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58f5fbcfb0fe3384592829cd1a5109aa45fb6a3ffc5ff2d164d2fd528ffd4641"
+checksum = "bdfd16800a12a2eaefff53958bd871875c246e669274269f7caefc25d19641ad"
 dependencies = [
  "anyhow",
  "chrono",

rust/Cargo.toml

@@ -36,7 +36,7 @@ dashmap = { version = "6.1.0" }
 http = "1"
 indexmap = "2.7.0"
 kittycad = { version = "0.3.36", default-features = false, features = ["js", "requests"] }
-kittycad-modeling-cmds = { version = "0.2.108", features = ["ts-rs", "websocket"] }
+kittycad-modeling-cmds = { version = "0.2.110", features = ["ts-rs", "websocket"] }
 lazy_static = "1.5.0"
 miette = "7.5.0"
 pyo3 = { version = "0.24.0" }

rust/justfile

@@ -13,6 +13,7 @@ redo-kcl-stdlib-docs-no-imgs:
 # Then run the stdlib docs generation
 redo-kcl-stdlib-docs:
     TWENTY_TWENTY=overwrite {{cnr}} -p kcl-lib --no-fail-fast -- kcl_test_example
+    TWENTY_TWENTY=overwrite {{cnr}} --workspace --no-fail-fast docs::kcl_doc::test::test_examples
     EXPECTORATE=overwrite {{cnr}} -p kcl-lib --no-fail-fast -- docs::gen_std_tests::test_generate_stdlib
 
 # Copy a test KCL file from executor tests into a new simulation test.

rust/kcl-lib/src/std/extrude.rs

@@ -10,6 +10,7 @@ use kcmc::{
     ok_response::OkModelingCmdResponse,
     output::ExtrusionFaceInfo,
     shared::ExtrusionFaceCapType,
+    shared::Opposite,
     websocket::{ModelingCmdReq, OkWebSocketResponseData},
     ModelingCmd,
 };
@@ -30,10 +31,22 @@ use crate::{
 pub async fn extrude(exec_state: &mut ExecState, args: Args) -> Result<KclValue, KclError> {
     let sketches = args.get_unlabeled_kw_arg_typed("sketches", &RuntimeType::sketches(), exec_state)?;
     let length = args.get_kw_arg("length")?;
+    let symmetric = args.get_kw_arg_opt("symmetric")?;
+    let bidirectional_length = args.get_kw_arg_opt("bidirectionalLength")?;
     let tag_start = args.get_kw_arg_opt("tagStart")?;
     let tag_end = args.get_kw_arg_opt("tagEnd")?;
 
-    let result = inner_extrude(sketches, length, tag_start, tag_end, exec_state, args).await?;
+    let result = inner_extrude(
+        sketches,
+        length,
+        symmetric,
+        bidirectional_length,
+        tag_start,
+        tag_end,
+        exec_state,
+        args,
+    )
+    .await?;
 
     Ok(result.into())
 }
@@ -87,6 +100,50 @@ pub async fn extrude(exec_state: &mut ExecState, args: Args) -> Result<KclValue,
 ///
 /// example = extrude(exampleSketch, length = 10)
 /// ```
+///
+/// ```no_run
+/// exampleSketch = startSketchOn('XZ')
+///   |> startProfileAt([-10, 0], %)
+///   |> arc({
+///     angleStart = 120,
+///     angleEnd = -60,
+///     radius = 5,
+///   }, %)
+///   |> line(end = [10, 0])
+///   |> line(end = [5, 0])
+///   |> bezierCurve({
+///     control1 = [-3, 0],
+///     control2 = [2, 10],
+///     to = [-5, 10],
+///   }, %)
+///   |> line(end = [-4, 10])
+///   |> line(end = [-5, -2])
+///   |> close()
+///
+/// example = extrude(exampleSketch, length = 20, symmetric = true)
+/// ```
+///
+/// ```no_run
+/// exampleSketch = startSketchOn('XZ')
+///   |> startProfileAt([-10, 0], %)
+///   |> arc({
+///     angleStart = 120,
+///     angleEnd = -60,
+///     radius = 5,
+///   }, %)
+///   |> line(end = [10, 0])
+///   |> line(end = [5, 0])
+///   |> bezierCurve({
+///     control1 = [-3, 0],
+///     control2 = [2, 10],
+///     to = [-5, 10],
+///   }, %)
+///   |> line(end = [-4, 10])
+///   |> line(end = [-5, -2])
+///   |> close()
+///
+/// example = extrude(exampleSketch, length = 10, bidirectionalLength = 50)
+/// ```
 #[stdlib {
     name = "extrude",
     feature_tree_operation = true,
@@ -95,6 +152,9 @@ pub async fn extrude(exec_state: &mut ExecState, args: Args) -> Result<KclValue,
     args = {
         sketches = { docs = "Which sketch or sketches should be extruded"},
         length = { docs = "How far to extrude the given sketches"},
+        symmetric = { docs = "If true, the extrusion will happen symmetrically around the sketch. Otherwise, the
+            extrusion will happen on only one side of the sketch." },
+        bidirectional_length = { docs = "If specified, will also extrude in the opposite direction to 'distance' to the specified distance. If 'symmetric' is true, this value is ignored."},
         tag_start = { docs = "A named tag for the face at the start of the extrusion, i.e. the original sketch" },
         tag_end = { docs = "A named tag for the face at the end of the extrusion, i.e. the new face created by extruding the original sketch" },
     }
@@ -103,6 +163,8 @@ pub async fn extrude(exec_state: &mut ExecState, args: Args) -> Result<KclValue,
 async fn inner_extrude(
     sketches: Vec<Sketch>,
     length: f64,
+    symmetric: Option<bool>,
+    bidirectional_length: Option<f64>,
     tag_start: Option<TagNode>,
     tag_end: Option<TagNode>,
     exec_state: &mut ExecState,
@@ -110,6 +172,25 @@ async fn inner_extrude(
 ) -> Result<Vec<Solid>, KclError> {
     // Extrude the element(s).
     let mut solids = Vec::new();
+
+    if symmetric.unwrap_or(false) && bidirectional_length.is_some() {
+        return Err(KclError::Semantic(KclErrorDetails {
+            source_ranges: vec![args.source_range],
+            message: "You cannot give both `symmetric` and `bidirectional` params, you have to choose one or the other"
+                .to_owned(),
+        }));
+    }
+
+    let bidirection = bidirectional_length.map(LengthUnit);
+
+    let opposite = match (symmetric, bidirection) {
+        (Some(true), _) => Opposite::Symmetric,
+        (None, None) => Opposite::None,
+        (Some(false), None) => Opposite::None,
+        (None, Some(length)) => Opposite::Other(length),
+        (Some(false), Some(length)) => Opposite::Other(length),
+    };
+
     for sketch in &sketches {
         let id = exec_state.next_uuid();
         args.batch_modeling_cmds(&sketch.build_sketch_mode_cmds(
@@ -120,6 +201,7 @@ async fn inner_extrude(
                     target: sketch.id.into(),
                     distance: LengthUnit(length),
                     faces: Default::default(),
+                    opposite: opposite.clone(),
                 }),
             },
         ))

rust/kcl-lib/src/std/revolve.rs

@@ -1,7 +1,7 @@
 //! Standard library revolution surfaces.
 
 use anyhow::Result;
-use kcmc::{each_cmd as mcmd, length_unit::LengthUnit, shared::Angle, ModelingCmd};
+use kcmc::{each_cmd as mcmd, length_unit::LengthUnit, shared::Angle, shared::Opposite, ModelingCmd};
 use kittycad_modeling_cmds::{self as kcmc, shared::Point3d};
 
 use super::DEFAULT_TOLERANCE;
@@ -30,8 +30,22 @@ pub async fn revolve(exec_state: &mut ExecState, args: Args) -> Result<KclValue,
     let tolerance = args.get_kw_arg_opt("tolerance")?;
     let tag_start = args.get_kw_arg_opt("tagStart")?;
     let tag_end = args.get_kw_arg_opt("tagEnd")?;
+    let symmetric = args.get_kw_arg_opt("symmetric")?;
+    let bidirectional_angle = args.get_kw_arg_opt("bidirectionalAngle")?;
 
-    let value = inner_revolve(sketches, axis, angle, tolerance, tag_start, tag_end, exec_state, args).await?;
+    let value = inner_revolve(
+        sketches,
+        axis,
+        angle,
+        tolerance,
+        tag_start,
+        tag_end,
+        symmetric,
+        bidirectional_angle,
+        exec_state,
+        args,
+    )
+    .await?;
     Ok(value.into())
 }
 
@@ -43,6 +57,8 @@ async fn inner_revolve(
     tolerance: Option<f64>,
     tag_start: Option<TagNode>,
     tag_end: Option<TagNode>,
+    symmetric: Option<bool>,
+    bidirectional_angle: Option<f64>,
     exec_state: &mut ExecState,
     args: Args,
 ) -> Result<Vec<Solid>, KclError> {
@@ -58,8 +74,54 @@ async fn inner_revolve(
         }
     }
 
+    if let Some(bidirectional_angle) = bidirectional_angle {
+        // Return an error if the angle is zero.
+        // We don't use validate() here because we want to return a specific error message that is
+        // nice and we use the other data in the docs, so we still need use the derive above for the json schema.
+        if !(-360.0..=360.0).contains(&bidirectional_angle) || bidirectional_angle == 0.0 {
+            return Err(KclError::Semantic(KclErrorDetails {
+                message: format!(
+                    "Expected bidirectional angle to be between -360 and 360 and not 0, found `{}`",
+                    bidirectional_angle
+                ),
+                source_ranges: vec![args.source_range],
+            }));
+        }
+
+        if let Some(angle) = angle {
+            let ang = angle.signum() * bidirectional_angle + angle;
+            if !(-360.0..=360.0).contains(&ang) {
+                return Err(KclError::Semantic(KclErrorDetails {
+                    message: format!(
+                        "Combined angle and bidirectional must be between -360 and 360, found '{}'",
+                        ang
+                    ),
+                    source_ranges: vec![args.source_range],
+                }));
+            }
+        }
+    }
+
+    if symmetric.unwrap_or(false) && bidirectional_angle.is_some() {
+        return Err(KclError::Semantic(KclErrorDetails {
+            source_ranges: vec![args.source_range],
+            message: "You cannot give both `symmetric` and `bidirectional` params, you have to choose one or the other"
+                .to_owned(),
+        }));
+    }
+
     let angle = Angle::from_degrees(angle.unwrap_or(360.0));
 
+    let bidirectional_angle = bidirectional_angle.map(Angle::from_degrees);
+
+    let opposite = match (symmetric, bidirectional_angle) {
+        (Some(true), _) => Opposite::Symmetric,
+        (None, None) => Opposite::None,
+        (Some(false), None) => Opposite::None,
+        (None, Some(angle)) => Opposite::Other(angle),
+        (Some(false), Some(angle)) => Opposite::Other(angle),
+    };
+
     let mut solids = Vec::new();
     for sketch in &sketches {
         let id = exec_state.next_uuid();
@@ -83,6 +145,7 @@ async fn inner_revolve(
                         },
                         tolerance: LengthUnit(tolerance.unwrap_or(DEFAULT_TOLERANCE)),
                         axis_is_2d: true,
+                        opposite: opposite.clone(),
                     }),
                 )
                 .await?;
@@ -96,6 +159,7 @@ async fn inner_revolve(
                         target: sketch.id.into(),
                         edge_id,
                         tolerance: LengthUnit(tolerance.unwrap_or(DEFAULT_TOLERANCE)),
+                        opposite: opposite.clone(),
                     }),
                 )
                 .await?;

rust/kcl-lib/std/prelude.kcl

@@ -585,6 +585,32 @@ export fn helix(
 ///     |> circle(center = [-10, 10], radius = 4)
 ///     |> revolve(angle = 90, axis = revolveAxis)
 /// ```
+///
+/// ```
+/// // Symmetrically revolve around a path.
+///
+/// profile001 = startSketchOn(XY)
+///     |> startProfileAt([0, 0], %)
+///     |> line(end = [0, 20], tag = $revolveAxis)
+///     |> line(end = [20, 0])
+///
+/// sketch001 = startSketchOn(XY)
+///     |> circle(center = [-10, 10], radius = 4)
+///     |> revolve(angle = 90, axis = revolveAxis, symmetric = true)
+/// ```
+///
+/// ```
+/// // Bidirectional revolve around a path.
+///
+/// profile001 = startSketchOn(XY)
+///     |> startProfileAt([0, 0], %)
+///     |> line(end = [0, 20], tag = $revolveAxis)
+///     |> line(end = [20, 0])
+///
+/// sketch001 = startSketchOn(XY)
+///     |> circle(center = [-10, 10], radius = 4)
+///     |> revolve(angle = 90, axis = revolveAxis, bidirectionalAngle = 50)
+/// ```
 @(impl = std_rust)
 export fn revolve(
   /// The sketch or set of sketches that should be revolved
@@ -595,6 +621,10 @@ export fn revolve(
   angle?: number(deg),
   /// Tolerance for the revolve operation.
   tolerance?: number(mm),
+  /// If true, the extrusion will happen symmetrically around the sketch. Otherwise, the extrusion will happen on only one side of the sketch.
+  symmetric?: bool,
+  /// If specified, will also revolve in the opposite direction to 'angle' to the specified angle. If 'symmetric' is true, this value is ignored.
+  bidirectionalAngle?: number(deg),
   /// A named tag for the face at the start of the revolve, i.e. the original sketch.
   tagStart?: tag,
   /// A named tag for the face at the end of the revolve.

rust/kcl-lib/tests/angled_line/artifact_commands.snap

@@ -213,7 +213,8 @@ description: Artifact commands angled_line.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/artifact_graph_example_code1/artifact_commands.snap

@@ -196,7 +196,8 @@ description: Artifact commands artifact_graph_example_code1.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -432,7 +433,8 @@ description: Artifact commands artifact_graph_example_code1.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/artifact_graph_sketch_on_face_etc/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands artifact_graph_sketch_on_face_etc.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 6.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -383,7 +384,8 @@ description: Artifact commands artifact_graph_sketch_on_face_etc.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -587,7 +589,8 @@ description: Artifact commands artifact_graph_sketch_on_face_etc.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -791,7 +794,8 @@ description: Artifact commands artifact_graph_sketch_on_face_etc.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/assembly_mixed_units_cubes/artifact_commands.snap

@@ -212,7 +212,8 @@ description: Artifact commands assembly_mixed_units_cubes.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -494,7 +495,8 @@ description: Artifact commands assembly_mixed_units_cubes.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/basic_fillet_cube_close_opposite/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands basic_fillet_cube_close_opposite.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/basic_fillet_cube_end/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands basic_fillet_cube_end.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/basic_fillet_cube_next_adjacent/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands basic_fillet_cube_next_adjacent.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/basic_fillet_cube_previous_adjacent/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands basic_fillet_cube_previous_adjacent.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/basic_fillet_cube_start/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands basic_fillet_cube_start.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/big_number_angle_to_match_length_x/artifact_commands.snap

@@ -162,7 +162,8 @@ description: Artifact commands big_number_angle_to_match_length_x.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/big_number_angle_to_match_length_y/artifact_commands.snap

@@ -162,7 +162,8 @@ description: Artifact commands big_number_angle_to_match_length_y.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/circle_three_point/artifact_commands.snap

@@ -153,7 +153,8 @@ description: Artifact commands circle_three_point.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/circular_pattern3d_a_pattern/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands circular_pattern3d_a_pattern.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/crazy_multi_profile/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands crazy_multi_profile.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 20.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -743,7 +744,8 @@ description: Artifact commands crazy_multi_profile.kcl
         "unit": "degrees",
         "value": 45.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -842,7 +844,8 @@ description: Artifact commands crazy_multi_profile.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1453,7 +1456,8 @@ description: Artifact commands crazy_multi_profile.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1571,7 +1575,8 @@ description: Artifact commands crazy_multi_profile.kcl
         "unit": "degrees",
         "value": 45.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/cube/artifact_commands.snap

@@ -196,7 +196,8 @@ description: Artifact commands cube.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 40.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/cube_with_error/artifact_commands.snap

@@ -196,7 +196,8 @@ description: Artifact commands cube_with_error.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 40.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/fillet-and-shell/artifact_commands.snap

@@ -306,7 +306,8 @@ description: Artifact commands fillet-and-shell.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 8.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -714,7 +715,8 @@ description: Artifact commands fillet-and-shell.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1042,7 +1044,8 @@ description: Artifact commands fillet-and-shell.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1370,7 +1373,8 @@ description: Artifact commands fillet-and-shell.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1698,7 +1702,8 @@ description: Artifact commands fillet-and-shell.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/flush_batch_on_end/artifact_commands.snap

@@ -255,7 +255,8 @@ description: Artifact commands flush_batch_on_end.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/function_sketch/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands function_sketch.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/function_sketch_with_position/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands function_sketch_with_position.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/helix_ccw/artifact_commands.snap

@@ -153,7 +153,8 @@ description: Artifact commands helix_ccw.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/i_shape/artifact_commands.snap

@@ -766,7 +766,8 @@ description: Artifact commands i_shape.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/import_whole/artifact_commands.snap

@@ -169,7 +169,8 @@ description: Artifact commands import_whole.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/intersect_cubes/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands intersect_cubes.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -436,7 +437,8 @@ description: Artifact commands intersect_cubes.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/80-20-rail/artifact_commands.snap

@@ -1478,7 +1478,8 @@ description: Artifact commands 80-20-rail.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 48.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/ball-bearing/artifact_commands.snap

@@ -269,7 +269,8 @@ description: Artifact commands ball-bearing.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.313,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -458,7 +459,8 @@ description: Artifact commands ball-bearing.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -695,7 +697,8 @@ description: Artifact commands ball-bearing.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -938,7 +941,8 @@ description: Artifact commands ball-bearing.kcl
         "unit": "degrees",
         "value": 36.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -1231,7 +1235,8 @@ description: Artifact commands ball-bearing.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.313,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/bench/artifact_commands.snap

@@ -476,7 +476,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1342,7 +1343,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2248,7 +2250,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3089,7 +3092,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3995,7 +3999,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4836,7 +4841,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5547,7 +5553,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 56.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5913,7 +5920,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 56.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6344,7 +6352,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 60.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6514,7 +6523,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 60.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6684,7 +6694,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 60.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7086,7 +7097,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 60.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7256,7 +7268,8 @@ description: Artifact commands bench.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 60.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/bracket/artifact_commands.snap

@@ -230,7 +230,8 @@ description: Artifact commands bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 6.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -700,7 +701,8 @@ description: Artifact commands bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.361324026261472,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -766,7 +768,8 @@ description: Artifact commands bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.361324026261472,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -832,7 +835,8 @@ description: Artifact commands bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.361324026261472,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -898,7 +902,8 @@ description: Artifact commands bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.361324026261472,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1076,7 +1081,8 @@ description: Artifact commands bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.45132402626147194,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1142,7 +1148,8 @@ description: Artifact commands bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.45132402626147194,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/car-wheel-assembly/artifact_commands.snap

@@ -169,7 +169,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -324,7 +325,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -483,7 +485,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -549,7 +552,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -615,7 +619,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -681,7 +686,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -747,7 +753,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -970,7 +977,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1108,7 +1116,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1267,7 +1276,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1333,7 +1343,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1399,7 +1410,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1465,7 +1477,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1531,7 +1544,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1690,7 +1704,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1756,7 +1771,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1822,7 +1838,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1888,7 +1905,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1954,7 +1972,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2020,7 +2039,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2086,7 +2106,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2152,7 +2173,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2218,7 +2240,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2284,7 +2307,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2350,7 +2374,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2416,7 +2441,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2482,7 +2508,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2548,7 +2575,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2614,7 +2642,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2680,7 +2709,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2882,7 +2912,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3008,7 +3039,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3134,7 +3166,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3260,7 +3293,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3386,7 +3420,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3648,7 +3683,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3774,7 +3810,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3900,7 +3937,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4026,7 +4064,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4152,7 +4191,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4690,7 +4730,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.475,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4938,7 +4979,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.95,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5117,7 +5159,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.95,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5183,7 +5226,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.95,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5249,7 +5293,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.95,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5315,7 +5360,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.95,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5381,7 +5427,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.95,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5540,7 +5587,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.475,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5606,7 +5654,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.475,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5672,7 +5721,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.475,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5738,7 +5788,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.475,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5804,7 +5855,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.475,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6111,7 +6163,8 @@ description: Artifact commands car-wheel-assembly.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -6403,7 +6456,8 @@ description: Artifact commands car-wheel-assembly.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -6707,7 +6761,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.95,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7124,7 +7179,8 @@ description: Artifact commands car-wheel-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.95,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7842,7 +7898,8 @@ description: Artifact commands car-wheel-assembly.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -8617,7 +8674,8 @@ description: Artifact commands car-wheel-assembly.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -9233,7 +9291,8 @@ description: Artifact commands car-wheel-assembly.kcl
         "unit": "degrees",
         "value": -70.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -9958,7 +10017,8 @@ description: Artifact commands car-wheel-assembly.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/color-cube/artifact_commands.snap

@@ -413,7 +413,8 @@ description: Artifact commands color-cube.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -679,7 +680,8 @@ description: Artifact commands color-cube.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -945,7 +947,8 @@ description: Artifact commands color-cube.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1211,7 +1214,8 @@ description: Artifact commands color-cube.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1477,7 +1481,8 @@ description: Artifact commands color-cube.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1743,7 +1748,8 @@ description: Artifact commands color-cube.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/dodecahedron/artifact_commands.snap

@@ -382,7 +382,8 @@ description: Artifact commands dodecahedron.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -532,7 +533,8 @@ description: Artifact commands dodecahedron.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/dual-basin-utility-sink/artifact_commands.snap

@@ -462,7 +462,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 834.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -592,7 +593,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 834.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -722,7 +724,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 834.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -852,7 +855,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 834.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -982,7 +986,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 834.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1112,7 +1117,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 834.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1242,7 +1248,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 834.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1372,7 +1379,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 834.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1849,7 +1857,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1979,7 +1988,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2109,7 +2119,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2239,7 +2250,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2369,7 +2381,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2499,7 +2512,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2788,7 +2802,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2918,7 +2933,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3395,7 +3411,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 671.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3525,7 +3542,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 671.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3655,7 +3673,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 671.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3785,7 +3804,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 671.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3915,7 +3935,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 671.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4045,7 +4066,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 671.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4373,7 +4395,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4503,7 +4526,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4792,7 +4816,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4922,7 +4947,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5210,7 +5236,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5491,7 +5518,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 200.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5617,7 +5645,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 200.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5898,7 +5927,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -200.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6024,7 +6054,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -200.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6468,7 +6499,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 667.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6598,7 +6630,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 667.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6728,7 +6761,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 667.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6858,7 +6892,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 667.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6988,7 +7023,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 667.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7118,7 +7154,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 667.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7407,7 +7444,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 667.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7537,7 +7575,8 @@ description: Artifact commands dual-basin-utility-sink.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 667.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/enclosure/artifact_commands.snap

@@ -204,7 +204,8 @@ description: Artifact commands enclosure.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 70.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -630,7 +631,8 @@ description: Artifact commands enclosure.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 67.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -915,7 +917,8 @@ description: Artifact commands enclosure.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 67.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1200,7 +1203,8 @@ description: Artifact commands enclosure.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 67.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1485,7 +1489,8 @@ description: Artifact commands enclosure.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 67.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2095,7 +2100,8 @@ description: Artifact commands enclosure.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2864,7 +2870,8 @@ description: Artifact commands enclosure.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/exhaust-manifold/artifact_commands.snap

@@ -2728,7 +2728,8 @@ description: Artifact commands exhaust-manifold.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/flange/artifact_commands.snap

@@ -355,7 +355,8 @@ description: Artifact commands flange.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.625,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -573,7 +574,8 @@ description: Artifact commands flange.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1279999999999999,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -711,7 +713,8 @@ description: Artifact commands flange.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.06,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -849,7 +852,8 @@ description: Artifact commands flange.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.813,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/focusrite-scarlett-mounting-bracket/artifact_commands.snap

@@ -255,7 +255,8 @@ description: Artifact commands focusrite-scarlett-mounting-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 88.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -726,7 +727,8 @@ description: Artifact commands focusrite-scarlett-mounting-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1181,7 +1183,8 @@ description: Artifact commands focusrite-scarlett-mounting-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1525,7 +1528,8 @@ description: Artifact commands focusrite-scarlett-mounting-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 104.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1762,7 +1766,8 @@ description: Artifact commands focusrite-scarlett-mounting-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 104.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/food-service-spatula/artifact_commands.snap

@@ -620,7 +620,8 @@ description: Artifact commands food-service-spatula.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1222,7 +1223,8 @@ description: Artifact commands food-service-spatula.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 15.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1676,7 +1678,8 @@ description: Artifact commands food-service-spatula.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -150.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1996,7 +1999,8 @@ description: Artifact commands food-service-spatula.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -30.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/french-press/artifact_commands.snap

@@ -202,7 +202,8 @@ description: Artifact commands french-press.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -721,7 +722,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1227,7 +1229,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1420,7 +1423,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1526,7 +1530,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1632,7 +1637,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1918,7 +1924,8 @@ description: Artifact commands french-press.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -2273,7 +2280,8 @@ description: Artifact commands french-press.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -2665,7 +2673,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2844,7 +2853,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2910,7 +2920,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2976,7 +2987,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3042,7 +3054,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3108,7 +3121,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3174,7 +3188,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3240,7 +3255,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3306,7 +3322,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3465,7 +3482,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3531,7 +3549,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3597,7 +3616,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3663,7 +3683,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3834,7 +3855,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 7.32,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4120,7 +4142,8 @@ description: Artifact commands french-press.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -4597,7 +4620,8 @@ description: Artifact commands french-press.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.65,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/gear-rack/artifact_commands.snap

@@ -187,7 +187,8 @@ description: Artifact commands gear-rack.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -512,7 +513,8 @@ description: Artifact commands gear-rack.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2658,7 +2660,8 @@ description: Artifact commands gear-rack.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2915,7 +2918,8 @@ description: Artifact commands gear-rack.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/gear/artifact_commands.snap

@@ -161,7 +161,8 @@ description: Artifact commands gear.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3766,7 +3767,8 @@ description: Artifact commands gear.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3981,7 +3983,8 @@ description: Artifact commands gear.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/gridfinity-baseplate-magnets/artifact_commands.snap

@@ -218,7 +218,8 @@ description: Artifact commands gridfinity-baseplate-magnets.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 34.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -545,7 +546,8 @@ description: Artifact commands gridfinity-baseplate-magnets.kcl
         "unit": "degrees",
         "value": -90.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -2852,7 +2854,8 @@ description: Artifact commands gridfinity-baseplate-magnets.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.4,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3936,7 +3939,8 @@ description: Artifact commands gridfinity-baseplate-magnets.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.4,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/gridfinity-baseplate/artifact_commands.snap

@@ -218,7 +218,8 @@ description: Artifact commands gridfinity-baseplate.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 34.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -545,7 +546,8 @@ description: Artifact commands gridfinity-baseplate.kcl
         "unit": "degrees",
         "value": -90.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/gridfinity-bins-stacking-lip/artifact_commands.snap

@@ -235,7 +235,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 34.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -579,7 +580,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
         "unit": "degrees",
         "value": -90.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -870,7 +872,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1177,7 +1180,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.4,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1243,7 +1247,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.4,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1309,7 +1314,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.4,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1375,7 +1381,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.4,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3188,7 +3195,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 7.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3622,7 +3630,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 76.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4035,7 +4044,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 118.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4488,7 +4498,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
         "unit": "degrees",
         "value": -90.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -4892,7 +4903,8 @@ description: Artifact commands gridfinity-bins-stacking-lip.kcl
         "unit": "degrees",
         "value": 90.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/gridfinity-bins/artifact_commands.snap

@@ -235,7 +235,8 @@ description: Artifact commands gridfinity-bins.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 34.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -579,7 +580,8 @@ description: Artifact commands gridfinity-bins.kcl
         "unit": "degrees",
         "value": -90.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -870,7 +872,8 @@ description: Artifact commands gridfinity-bins.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1177,7 +1180,8 @@ description: Artifact commands gridfinity-bins.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.4,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1243,7 +1247,8 @@ description: Artifact commands gridfinity-bins.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.4,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1309,7 +1314,8 @@ description: Artifact commands gridfinity-bins.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.4,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1375,7 +1381,8 @@ description: Artifact commands gridfinity-bins.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.4,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3188,7 +3195,8 @@ description: Artifact commands gridfinity-bins.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 14.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/hex-nut/artifact_commands.snap

@@ -315,7 +315,8 @@ description: Artifact commands hex-nut.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.266,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/i-beam/artifact_commands.snap

@@ -268,7 +268,8 @@ description: Artifact commands i-beam.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 72.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/keyboard/artifact_commands.snap

@@ -204,7 +204,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 13.6,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -703,7 +704,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -769,7 +771,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -835,7 +838,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -901,7 +905,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1188,7 +1193,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1642,7 +1648,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2155,7 +2162,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2609,7 +2617,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3063,7 +3072,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3517,7 +3527,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3971,7 +3982,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4425,7 +4437,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4879,7 +4892,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5595,7 +5609,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6049,7 +6064,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6503,7 +6519,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7248,7 +7265,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7702,7 +7720,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -8156,7 +8175,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -8930,7 +8950,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -9384,7 +9405,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -10187,7 +10209,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -10641,7 +10664,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -11095,7 +11119,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -11869,7 +11894,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.1,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -12437,7 +12463,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.03,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -12967,7 +12994,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.03,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -13257,7 +13285,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.03,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -13547,7 +13576,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.03,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -13837,7 +13867,8 @@ description: Artifact commands keyboard.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.03,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/kitt/artifact_commands.snap

@@ -196,7 +196,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 18.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -437,7 +438,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -814,7 +816,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1215,7 +1218,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1456,7 +1460,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1697,7 +1702,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1938,7 +1944,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2315,7 +2322,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2716,7 +2724,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2957,7 +2966,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3198,7 +3208,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3439,7 +3450,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3680,7 +3692,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3921,7 +3934,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4162,7 +4176,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4403,7 +4418,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4644,7 +4660,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4885,7 +4902,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5126,7 +5144,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5367,7 +5386,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5608,7 +5628,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5882,7 +5903,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6123,7 +6145,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6397,7 +6420,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6638,7 +6662,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6879,7 +6904,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7120,7 +7146,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7361,7 +7388,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7602,7 +7630,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -7843,7 +7872,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -8084,7 +8114,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -8325,7 +8356,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -8566,7 +8598,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -8807,7 +8840,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -9048,7 +9082,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -9289,7 +9324,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -9530,7 +9566,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -9771,7 +9808,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -10012,7 +10050,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -10253,7 +10292,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -10494,7 +10534,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -10735,7 +10776,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -10976,7 +11018,8 @@ description: Artifact commands kitt.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/lego/artifact_commands.snap

@@ -187,7 +187,8 @@ description: Artifact commands lego.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.2,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -411,7 +412,8 @@ description: Artifact commands lego.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -1.7000000000000002,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -787,7 +789,8 @@ description: Artifact commands lego.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.8,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -853,7 +856,8 @@ description: Artifact commands lego.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.8,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -919,7 +923,8 @@ description: Artifact commands lego.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.8,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -985,7 +990,8 @@ description: Artifact commands lego.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.8,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1051,7 +1057,8 @@ description: Artifact commands lego.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.8,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1117,7 +1124,8 @@ description: Artifact commands lego.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.8,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1305,7 +1313,8 @@ description: Artifact commands lego.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.8,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1371,7 +1380,8 @@ description: Artifact commands lego.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.8,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/makeup-mirror/artifact_commands.snap

@@ -175,7 +175,8 @@ description: Artifact commands makeup-mirror.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 24.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -360,7 +361,8 @@ description: Artifact commands makeup-mirror.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 24.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -545,7 +547,8 @@ description: Artifact commands makeup-mirror.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 24.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -730,7 +733,8 @@ description: Artifact commands makeup-mirror.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 24.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -915,7 +919,8 @@ description: Artifact commands makeup-mirror.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 24.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1100,7 +1105,8 @@ description: Artifact commands makeup-mirror.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 24.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1285,7 +1291,8 @@ description: Artifact commands makeup-mirror.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 24.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1456,7 +1463,8 @@ description: Artifact commands makeup-mirror.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 170.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1627,7 +1635,8 @@ description: Artifact commands makeup-mirror.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 170.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1812,7 +1821,8 @@ description: Artifact commands makeup-mirror.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2011,7 +2021,8 @@ description: Artifact commands makeup-mirror.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/mounting-plate/artifact_commands.snap

@@ -657,7 +657,8 @@ description: Artifact commands mounting-plate.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/multi-axis-robot/artifact_commands.snap

@@ -212,7 +212,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -498,7 +499,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 3.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -658,7 +660,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -817,7 +820,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -883,7 +887,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -949,7 +954,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1015,7 +1021,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1174,7 +1181,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1240,7 +1248,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1306,7 +1315,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1372,7 +1382,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1619,7 +1630,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.4,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1868,7 +1880,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2066,7 +2079,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2247,7 +2261,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.2,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2313,7 +2328,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.2,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2379,7 +2395,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.2,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2445,7 +2462,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.2,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2583,7 +2601,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2781,7 +2800,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3070,7 +3090,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -2.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3268,7 +3289,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3428,7 +3450,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3609,7 +3632,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3675,7 +3699,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3741,7 +3766,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3807,7 +3833,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3873,7 +3900,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3939,7 +3967,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4005,7 +4034,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4071,7 +4101,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4230,7 +4261,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4296,7 +4328,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4362,7 +4395,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4428,7 +4462,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4566,7 +4601,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4830,7 +4866,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5028,7 +5065,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5209,7 +5247,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5275,7 +5314,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5341,7 +5381,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5407,7 +5448,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5473,7 +5515,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5539,7 +5582,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5605,7 +5649,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5671,7 +5716,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.15,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5809,7 +5855,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -5947,7 +5994,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6085,7 +6133,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.01,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6325,7 +6374,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -1.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -6685,7 +6735,8 @@ description: Artifact commands multi-axis-robot.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -1.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/parametric-bearing-pillow-block/artifact_commands.snap

@@ -187,7 +187,8 @@ description: Artifact commands parametric-bearing-pillow-block.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -505,7 +506,8 @@ description: Artifact commands parametric-bearing-pillow-block.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -571,7 +573,8 @@ description: Artifact commands parametric-bearing-pillow-block.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -637,7 +640,8 @@ description: Artifact commands parametric-bearing-pillow-block.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -703,7 +707,8 @@ description: Artifact commands parametric-bearing-pillow-block.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -961,7 +966,8 @@ description: Artifact commands parametric-bearing-pillow-block.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1027,7 +1033,8 @@ description: Artifact commands parametric-bearing-pillow-block.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1093,7 +1100,8 @@ description: Artifact commands parametric-bearing-pillow-block.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1159,7 +1167,8 @@ description: Artifact commands parametric-bearing-pillow-block.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1297,7 +1306,8 @@ description: Artifact commands parametric-bearing-pillow-block.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/pipe-flange-assembly/artifact_commands.snap

@@ -355,7 +355,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.69,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -573,7 +574,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.06,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -711,7 +713,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -849,7 +852,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1231,7 +1235,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.69,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1449,7 +1454,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.06,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1587,7 +1593,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.25,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1725,7 +1732,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1970,7 +1978,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.031,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2108,7 +2117,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.031,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2320,7 +2330,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.032,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2458,7 +2469,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.032,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2851,7 +2863,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.625,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3083,7 +3096,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.46875,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3321,7 +3335,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3638,7 +3653,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.546875,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -3876,7 +3892,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.546875,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4109,7 +4126,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 6.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4247,7 +4265,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -6.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4483,7 +4502,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 6.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -4621,7 +4641,8 @@ description: Artifact commands pipe-flange-assembly.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -6.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/pipe-with-bend/artifact_commands.snap

@@ -253,7 +253,8 @@ description: Artifact commands pipe-with-bend.kcl
         "unit": "degrees",
         "value": 90.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/pipe/artifact_commands.snap

@@ -161,7 +161,8 @@ description: Artifact commands pipe.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 6.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -299,7 +300,8 @@ description: Artifact commands pipe.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -6.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/poopy-shoe/artifact_commands.snap

@@ -338,7 +338,8 @@ description: Artifact commands poopy-shoe.kcl
         "unit": "degrees",
         "value": 90.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -921,7 +922,8 @@ description: Artifact commands poopy-shoe.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.875,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1340,7 +1342,8 @@ description: Artifact commands poopy-shoe.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1680,7 +1683,8 @@ description: Artifact commands poopy-shoe.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2131,7 +2135,8 @@ description: Artifact commands poopy-shoe.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2395,7 +2400,8 @@ description: Artifact commands poopy-shoe.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2619,7 +2625,8 @@ description: Artifact commands poopy-shoe.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.75,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2876,7 +2883,8 @@ description: Artifact commands poopy-shoe.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/router-template-cross-bar/artifact_commands.snap

@@ -492,7 +492,8 @@ description: Artifact commands router-template-cross-bar.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1033,7 +1034,8 @@ description: Artifact commands router-template-cross-bar.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1274,7 +1276,8 @@ description: Artifact commands router-template-cross-bar.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 13.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1515,7 +1518,8 @@ description: Artifact commands router-template-cross-bar.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/router-template-slate/artifact_commands.snap

@@ -356,7 +356,8 @@ description: Artifact commands router-template-slate.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -737,7 +738,8 @@ description: Artifact commands router-template-slate.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 7.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -978,7 +980,8 @@ description: Artifact commands router-template-slate.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 7.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/sheet-metal-bracket/artifact_commands.snap

@@ -502,7 +502,8 @@ description: Artifact commands sheet-metal-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1128,7 +1129,8 @@ description: Artifact commands sheet-metal-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1194,7 +1196,8 @@ description: Artifact commands sheet-metal-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1372,7 +1375,8 @@ description: Artifact commands sheet-metal-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1438,7 +1442,8 @@ description: Artifact commands sheet-metal-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1696,7 +1701,8 @@ description: Artifact commands sheet-metal-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1762,7 +1768,8 @@ description: Artifact commands sheet-metal-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1828,7 +1835,8 @@ description: Artifact commands sheet-metal-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1894,7 +1902,8 @@ description: Artifact commands sheet-metal-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -2032,7 +2041,8 @@ description: Artifact commands sheet-metal-bracket.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.125,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/socket-head-cap-screw/artifact_commands.snap

@@ -161,7 +161,8 @@ description: Artifact commands socket-head-cap-screw.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.19,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -393,7 +394,8 @@ description: Artifact commands socket-head-cap-screw.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.14250000000000002,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -631,7 +633,8 @@ description: Artifact commands socket-head-cap-screw.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/walkie-talkie/artifact_commands.snap

@@ -195,7 +195,8 @@ description: Artifact commands walkie-talkie.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -575,7 +576,8 @@ description: Artifact commands walkie-talkie.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.0625,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -896,7 +898,8 @@ description: Artifact commands walkie-talkie.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.0625,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -1120,7 +1123,8 @@ description: Artifact commands walkie-talkie.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -10036,7 +10040,8 @@ description: Artifact commands walkie-talkie.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.0625,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -22582,7 +22587,8 @@ description: Artifact commands walkie-talkie.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.05,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -22999,7 +23005,8 @@ description: Artifact commands walkie-talkie.kcl
         "unit": "degrees",
         "value": 360.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -23310,7 +23317,8 @@ description: Artifact commands walkie-talkie.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.04,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -23652,7 +23660,8 @@ description: Artifact commands walkie-talkie.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.04,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -23994,7 +24003,8 @@ description: Artifact commands walkie-talkie.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.04,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -24360,7 +24370,8 @@ description: Artifact commands walkie-talkie.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.04,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kcl_samples/washer/artifact_commands.snap

@@ -255,7 +255,8 @@ description: Artifact commands washer.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 0.032,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/kittycad_svg/artifact_commands.snap

@@ -4905,7 +4905,8 @@ description: Artifact commands kittycad_svg.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/linear_pattern3d_a_pattern/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands linear_pattern3d_a_pattern.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/mike_stress_test/artifact_commands.snap

@@ -17128,7 +17128,8 @@ description: Artifact commands mike_stress_test.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 5.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/multi_transform/artifact_commands.snap

@@ -239,7 +239,8 @@ description: Artifact commands multi_transform.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 4.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/neg_xz_plane/artifact_commands.snap

@@ -162,7 +162,8 @@ description: Artifact commands neg_xz_plane.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 12.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/out_of_band_sketches/artifact_commands.snap

@@ -306,7 +306,8 @@ description: Artifact commands out_of_band_sketches.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.14,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -436,7 +437,8 @@ description: Artifact commands out_of_band_sketches.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.14,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/parametric/artifact_commands.snap

@@ -213,7 +213,8 @@ description: Artifact commands parametric.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 9.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/parametric_with_tan_arc/artifact_commands.snap

@@ -245,7 +245,8 @@ description: Artifact commands parametric_with_tan_arc.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 11.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/pattern_circular_in_module/artifact_commands.snap

@@ -200,7 +200,8 @@ description: Artifact commands pattern_circular_in_module.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -330,7 +331,8 @@ description: Artifact commands pattern_circular_in_module.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -460,7 +462,8 @@ description: Artifact commands pattern_circular_in_module.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -590,7 +593,8 @@ description: Artifact commands pattern_circular_in_module.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/pattern_linear_in_module/artifact_commands.snap

@@ -338,7 +338,8 @@ description: Artifact commands pattern_linear_in_module.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -408,7 +409,8 @@ description: Artifact commands pattern_linear_in_module.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -478,7 +480,8 @@ description: Artifact commands pattern_linear_in_module.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -548,7 +551,8 @@ description: Artifact commands pattern_linear_in_module.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -618,7 +622,8 @@ description: Artifact commands pattern_linear_in_module.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -688,7 +693,8 @@ description: Artifact commands pattern_linear_in_module.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -758,7 +764,8 @@ description: Artifact commands pattern_linear_in_module.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/pentagon_fillet_sugar/artifact_commands.snap

@@ -171,7 +171,8 @@ description: Artifact commands pentagon_fillet_sugar.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 200.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -349,7 +350,8 @@ description: Artifact commands pentagon_fillet_sugar.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 100.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -521,7 +523,8 @@ description: Artifact commands pentagon_fillet_sugar.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 100.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/pipe_as_arg/artifact_commands.snap

@@ -196,7 +196,8 @@ description: Artifact commands pipe_as_arg.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 400.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/poop_chute/artifact_commands.snap

@@ -330,7 +330,8 @@ description: Artifact commands poop_chute.kcl
         "unit": "degrees",
         "value": 90.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {
@@ -913,7 +914,8 @@ description: Artifact commands poop_chute.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/revolve_about_edge/artifact_commands.snap

@@ -226,7 +226,8 @@ description: Artifact commands revolve_about_edge.kcl
         "unit": "degrees",
         "value": 90.0
       },
-      "tolerance": 0.0000001
+      "tolerance": 0.0000001,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/riddle_small/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands riddle_small.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 1.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/rotate_after_fillet/artifact_commands.snap

@@ -153,7 +153,8 @@ description: Artifact commands rotate_after_fillet.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.625,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -385,7 +386,8 @@ description: Artifact commands rotate_after_fillet.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.46875,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -623,7 +625,8 @@ description: Artifact commands rotate_after_fillet.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/scale_after_fillet/artifact_commands.snap

@@ -153,7 +153,8 @@ description: Artifact commands scale_after_fillet.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.625,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -385,7 +386,8 @@ description: Artifact commands scale_after_fillet.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -0.46875,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -623,7 +625,8 @@ description: Artifact commands scale_after_fillet.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 2.5,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/sketch-on-chamfer-two-times-different-order/artifact_commands.snap

@@ -196,7 +196,8 @@ description: Artifact commands sketch-on-chamfer-two-times-different-order.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 100.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -598,7 +599,8 @@ description: Artifact commands sketch-on-chamfer-two-times-different-order.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 50.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/sketch-on-chamfer-two-times/artifact_commands.snap

@@ -196,7 +196,8 @@ description: Artifact commands sketch-on-chamfer-two-times.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 100.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -598,7 +599,8 @@ description: Artifact commands sketch-on-chamfer-two-times.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 50.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {

rust/kcl-lib/tests/sketch_in_object/artifact_commands.snap

@@ -179,7 +179,8 @@ description: Artifact commands sketch_in_object.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": -10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {
@@ -436,7 +437,8 @@ description: Artifact commands sketch_in_object.kcl
       "type": "extrude",
       "target": "[uuid]",
       "distance": 10.0,
-      "faces": null
+      "faces": null,
+      "opposite": "None"
     }
   },
   {