kernelcad-shopcheck

kernelCAD — shop preflight (DFM check)

Run a flat-pattern or planar body through the configured vendor's published ordering rules. Get a structured findings report with repair hints the agent can paste straight back into authoring tools.

// Preflight a bracket against the configured shop's rules.
await mcp.verify({
  check: 'dfm-preflight',
  file: 'bracket.kcad.ts',
  vendor: 'sendcutsend',
  material: 'aluminum-6061-t6',
  thicknessIn: 0.125,
});
// → { ok: false, findings: [{ code: 'dfm.hole.below-minimum', measured: { ref: '@kc[bracket/face/top/hole/0]' }, repairHint: { action: 'enlarge', params: {...} } }] }

Quick start

• Required inputs: vendor (string SKU), material (string SKU), and thicknessIn or thicknessMm.
• Optional inputs: service (laser / cnc-router / waterjet / bending — inferred when omitted), featureId, dxf (DXF path), refreshCatalog.
• The tool fails closed (dfm.input.*-required) when any of vendor / material / thickness is missing.

API

verify(input: {
  check: 'dfm-preflight';
  file?: string;
  code?: string;
  dxf?: string;
  featureId?: string;
  vendor: string;
  material: string;
  thicknessIn?: number;
  thicknessMm?: number;
  service?: 'laser' | 'cnc-router' | 'waterjet' | 'bending';
  refreshCatalog?: boolean;
}): Promise<{
  ok: boolean;
  findings: Array<{
    code: DiagnosticCode;
    severity: 'info' | 'warn' | 'error';
    hint: string;
    ruleId: string;
    ruleSource: string;
    measured?: { kind, value, unit, location?: [x,y], ref?: '@kc[...]' };
    threshold?: { value, unit };
    repairHint?: { action: 'enlarge' | 'remove' | 'relocate' | 'change-material' | 'change-thickness', params };
  }>;
  diagnostics: CompilerDiagnostic[];
}>;

Vendor support

Vendor identifier is a runtime parameter that selects a data directory under catalogs/vendors/<vendor>/. Slice E ships with one configured vendor. Add a new vendor by dropping catalog.json + specs.json + rules.json into a new catalogs/vendors/<new-vendor>/ directory and refreshing the manifest. No code change required — the engine is data-driven.