# Codex Skills Index

Skills are reusable implementation workflows. Use one skill per implementation pass unless the task clearly spans two tightly coupled areas.

## Available skills

| Skill | Use when |
|---|---|
| `geoai-backend-build` | creating FastAPI services, routers, schemas, domain logic |
| `postgis-migration` | creating database models, Alembic migrations, geometry fields |
| `raster-pipeline` | implementing Rasterio/GDAL-style raster metadata, clip, tile, indices |
| `vector-processing` | implementing GeoPandas/Shapely vector operations and exports |
| `frontend-maplibre-workbench` | building React/MapLibre pages, layers, UI states |
| `qaqc-review` | implementing IoU, precision/recall, false positives/negatives |
| `codex-pass-review` | final self-review, regression scan and pass completion reports |

## Skill usage protocol

1. Read active pass prompt.
2. Select the closest skill.
3. Read `skills/<skill>/SKILL.md`.
4. Implement using the skill checklist.
5. Run module-specific checks.
6. End with the skill's required report fields.

## Skill conflict rule

If a skill conflicts with governance docs, governance wins. Update the skill later; do not violate governance.