# Definition of Done

A feature is done only when all applicable criteria are met.

## Backend feature

- Endpoint or service is implemented.
- Input schema exists.
- Output schema exists.
- Error behavior is defined.
- Test exists or limitation is documented.
- No unhandled tracebacks for expected user errors.
- Docs are updated when behavior differs from spec.

## Frontend feature

- Page/component is connected to real API or explicit fixture mode.
- Loading state exists.
- Empty state exists.
- Error state exists.
- Main action is discoverable.
- API failures are visible to the user.
- No hardcoded fake success for real workflows.

## Geo-processing feature

- CRS handling is explicit.
- Units are documented.
- Input geometry validity is checked.
- Output geometry is valid or repair attempt is documented.
- Large-file limitations are surfaced.

## AI feature

- Model dependency/configuration is explicit.
- If model is unavailable, user sees `not_configured`.
- Input preprocessing is documented.
- Output georeferencing is documented.
- Confidence threshold is configurable.

## Repo pass

Every Codex build pass must update:

- `docs/CODEX_EXECUTION_LOG.md`
- `docs/TODO.md` if tasks are completed or added
- relevant API/schema docs if changed