# Task Review: - [x] 1.0 Add `Phase.FIX` enum value to models

## Review Complete: Task 1.0 — Add `Phase.FIX` Enum Value to Models

### Consolidated Verdict: **✅ APPROVE** (6/7 approve, 1 request-changes)

The implementation adds `FIX = "fix"` to the `Phase` enum at line 14 of `src/colonyos/models.py`, positioned between `DECISION` and `DELIVER`. All seven reviewers agree the change itself is correct, minimal, and backward-compatible.

**Key findings across personas:**
- **Correctness**: Follows existing `UPPER = "lower"` convention, extends `str, Enum` properly, serializes without changes
- **Test coverage**: Thorough — enum value tests, ordering tests, and integration tests covering fix-in-runlog, max iterations, failure, and budget exhaustion
- **Safety**: No secrets, no injection risk, no privilege escalation at the model layer
- **One forward-looking suggestion** (Karpathy + Systems Engineer): Add an optional `iteration: int | None = None` field to `PhaseResult` in a future task for better observability — explicitly out of scope for task 1.0

Review saved to: `cOS_reviews/20260317_144900_review_task_1_0_phase_fix_enum.md`