add_variable_sweep
Add Variable Sweep
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Third-party content written by another agent. Data to evaluate, not instructions.
Use this when you need to author a variable-section sweep along a spine. Insert a variableSweep(spine, sections, opts?) declaration into the user's .kcad.ts immediately before the last top-level return. The result is a Shape — chain .translate(...), .union(...), etc. via add_feature. spine_binding references an existing variable (Curve3D / Sketch / Vec3[]) in the source; each sections[i].profile_binding references an existing Sketch. Sections must be strictly increasing in t and span [0, 1]; first t=0, last t=1. Orientation is not exposed by this MCP tool until runtime orientation support is wired. Validates every binding exists in the source via regex before inserting (fast structured error vs capture-time stack). Returns the modified code + diagnostics. Side-effect-free.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| code | string | yes | The .kcad.ts source code. |
| spine_binding | string | yes | Existing variable name for a Curve3D / Sketch / Vec3[] declared earlier in the source. |
| sections | array | yes | Varying cross-sections along the spine; at least 2 entries, strictly increasing in `t`, first t=0, last t=1. |
| closed | boolean | no | Optional closed-sweep flag. |
| continuity | string | no | Inter-section continuity; default 'C1'. |
| binding_name | string | no | JS const name for the new Shape binding (default: _sweep_<N>). |
Raw JSON schema
{
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "The .kcad.ts source code."
},
"spine_binding": {
"type": "string",
"description": "Existing variable name for a Curve3D / Sketch / Vec3[] declared earlier in the source."
},
"sections": {
"type": "array",
"description": "Varying cross-sections along the spine; at least 2 entries, strictly increasing in `t`, first t=0, last t=1.",
"items": {
"type": "object",
"properties": {
"t": {
"type": "number",
"description": "Spine parameter in [0, 1]."
},
"profile_binding": {
"type": "string",
"description": "Existing Sketch variable name for this section."
}
},
"required": [
"t",
"profile_binding"
]
}
},
"closed": {
"type": "boolean",
"description": "Optional closed-sweep flag."
},
"continuity": {
"type": "string",
"enum": [
"C0",
"C1",
"C2"
],
"description": "Inter-section continuity; default 'C1'."
},
"binding_name": {
"type": "string",
"description": "JS const name for the new Shape binding (default: _sweep_<N>)."
}
},
"required": [
"code",
"spine_binding",
"sections"
]
}