# CadSet

CAD Router provides three STEP-centered workflows:

- Generate editable CAD from natural-language requests.
- Generate or modify editable CAD from text plus reference images.
- Reconstruct uploaded STEP files into editable DesignIR 2.0 and modify them.

For every request, CAD Router selects either text-to-cad or SimpleCADAPI as
the execution backend. The persistent contract is DesignIR 2.0 plus STEP.

## Project layout

- `cad-agent-studio/`: standalone web frontend.
- `designir-pipeline/`: role-separated reconstruction, acceptance, and
  experience-promotion system.
- `text-to-cad/`: CAD Router, Build123d generation skill, Viewer, and shared
  CAD runtime.
- `SimpleCADAPI/`: the second CAD execution backend.
- `llm.config.yaml`: private, Git-ignored provider configuration shared by the
  standalone frontend.

The uploaded teacher STEP is evidence only. A reconstruction must compile from
DesignIR after the teacher file has been removed from the build environment.