# REF-2195: Session-Retrospective-2026-04-04-D1

**Applies to:** FXA project
**Last updated:** 2026-04-04
**Last reviewed:** 2026-04-04
**Status:** Active

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## What Is It?

Session retrospective for the first Evolve-CLI run on 2026-04-04.

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## Session Retrospective — 2026-04-04-D1

### Actions Taken

- Executed full Evolve-CLI cycle (FXA-2149) end-to-end
- Collected signals: 406 tests pass, 0 ruff issues, 95% coverage, 19 source findings
- Generated 4 candidates, evaluated with FXA-2146 weights, selected top (score 9.20)
- Created run log FXA-2192, PRP FXA-2193, CHG FXA-2194
- PRP review: R1 Codex 8.7 FIX (3 blocking) → revised → R2 Codex 9.7 + Gemini 10.0 PASS
- TDD: 2 characterization tests + 2-line refactor, 408/408 pass, 0 ruff
- Code review: Codex 10.0 + Gemini 10.0 PASS
- PR #20 created and merged

### Automation Candidates

| Pattern                          | Suggested Action                | Priority |
|----------------------------------|---------------------------------|----------|
| None identified this session     | —                               | —        |

### New SOP Candidates

| Topic | Why |
|-------|-----|
| None identified this session | — |

### SOP Updates Needed

| SOP      | What to Change                                                                                                 |
|----------|----------------------------------------------------------------------------------------------------------------|
| FXA-2149 | Step 12: clarify whether run log should be committed when no candidate passes threshold                        |
| FXA-2149 | Phase 5 header: clarify iteration semantics — recommend "select top candidate per run" for focused PRs         |

### Key Learnings

1. The Evolve-CLI process works end-to-end as designed — first successful run validates the SOP
2. PRP R1 → R2 cycle is healthy: Codex caught real gaps (missing scope table, risk awareness) that improved the PRP quality
3. For a 2-line refactor, the full PRP/CHG/review cycle feels heavyweight but ensures rigor — the risk awareness feedback from Codex was genuinely valuable
4. Codex review takes significantly longer than Gemini (~10x); plan dispatch accordingly

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## Change History

| Date | Change | By |
|------|--------|----|
| 2026-04-04 | Initial version | — |
