Initial GeoIntel V1 foundation

skills/vector-processing/SKILL.md

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+# Skill: Vector Processing
+
+Use this skill for GeoJSON/shapefile/GPKG ingestion, clipping, buffering, spatial joins, polygon validation and exports.
+
+## Read first
+
+- `docs/VECTOR_OPERATIONS_SPEC.md`
+- `docs/GEOSPATIAL_VALIDATION_RULES.md`
+- `docs/standards/GIS_STANDARDS.md`
+- `docs/API_CONTRACTS.md`
+
+## Vector rules
+
+- Validate geometry before storage or analysis.
+- Repair simple invalid geometries only when documented and reported.
+- Preserve source metadata.
+- Use explicit CRS transformation.
+- Export GeoJSON with stable properties.
+- Keep analysis outputs traceable to input layer and analysis run.
+
+## Operations checklist
+
+- [ ] Load vector data.
+- [ ] Validate schema and geometry.
+- [ ] Reproject if needed.
+- [ ] Clip to area.
+- [ ] Perform requested spatial operation.
+- [ ] Store or export result.
+- [ ] Add tests using small fixtures.
+
+## Completion report fields
+
+- Operations implemented.
+- Geometry types supported.
+- CRS behavior.
+- Tests run.
+- Unsupported edge cases.