# Backend

The backend owns the application API and CAD generation workflow:

- `app/`: HTTP API, jobs, orchestration, and persistence adapters.
- `agent/`: AI prompts, tools, and skills used by the generation agent.
- `engine/`: CDSL compiler, sketch solver, and STEP generation runtime.
- `cdsl_library/`: Official CDSL examples, metadata, and search index.
- `tests/`: Engine, API, and end-to-end generation tests.

Expected development entrypoint: `app.main:app`, served by Uvicorn.