# Phase 4: Validation Matrix — Complete

**Agent:** Validation Generator  
**Timestamp:** 2025-02-14T18:04:42Z  
**Input:** Phases 1–3 outputs

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## Validation Rules

| Type | Count |
|------|-------|
| Field-level validation rules | 156 |
| Edge-case scenarios | 34 |
| Integration checks | 12 |
| **Total** | **202** |

### Coverage
- PK migration (string → uuid): 100% covered
- Enum mapping: 6 scenarios
- Custom path (Item #447): 12 rules for variable product-type handling

### Effort
**Estimated validation effort:** 48 person-hours

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*Handoff to Documentation Synthesizer*