# Wave 9C — Review Pass 2 Sweep Summary

**Date:** 2026-05-02
**Stage:** Stage 3 (Architect: Re-review after revision) of WAVE-9C-DISPATCH.md
**Scope:** 1 sub-AD (AD-641d, HIGH-risk; closes AD-641 umbrella issue #277).
**Tolerance (convention #15):** 1 ⚠️ already consumed in pass-1; pass-2 produced ✅ — budget honored.

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## Verdict Table

| Sub-AD | Title | Risk | Pass-1 | Pass-2 | Required-still-open | New Findings |
|---|---|---|---|---|---|---|
| AD-641d | Crew Deliberation Protocol | HIGH | ⚠️ Conditional | ✅ Approved | **0** | **0** |

**Total Required-still-open:** 0 (target: 0). ✅
**Total new findings:** 0 (target: 0). ✅
**Pre-check:** 0 phantoms. ✅
**v1 isolation:** preserved (0 direct cross-wave artifact calls). ✅

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## Resolution Summary

| Pass-1 finding tier | Count | Resolved at pass-2 |
|---|---|---|
| Required | 4 | 4 ✅ (R1 inline import, R2 dead code removed, R3 endorse → AD-641d-v defer with all 7 cascading surfaces, R4 DECISIONS.md inline draft block) |
| Recommended | 4 | 4 ✅ (Rec1 enum trimmed, Rec2 VAC enriched, Rec3 participants comment, Rec4 direct `.id` access) |
| Nits | 3 | 3 ✅ (Nit1 six log-and-degrade sites, Nit2 disabled-config test, Nit3 PENDING sentinel comment) |

**11 of 11 findings resolved.** No regressions. No new phantom APIs.

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## Recommended Builder Dispatch

**Single commit.** AD-641d only.

Suggested commit message: `AD-641d: Crew Deliberation Protocol (Captain-resolved judgment surface)`

Post-commit actions (per the prompt's Tracking section):
1. Update `PROGRESS.md` with AD-641d CLOSED entry (5 deferred grandchildren: AD-641d-i through AD-641d-v).
2. Append `DECISIONS.md` Era V entry verbatim from the prompt's Tracking section #2 fenced markdown block.
3. Update `docs/development/roadmap.md` line 7056 reflecting AD-641d CLOSED.
4. **Close GitHub issue #277 (AD-641 umbrella)** — see umbrella closure note below.

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## AD-641 Umbrella Closure Note

AD-641d was the final architectural surface in the AD-641 umbrella (issue #277). Sister sub-ADs already shipped:

| Sub-AD | Wave | Commit | Status |
|---|---|---|---|
| AD-641a (Observability Bridge) | 9A | 4476091 | ✅ Shipped |
| AD-641b (Ward Room Hebbian Router) | 9A | a56b6c6 | ✅ Shipped |
| AD-641c (Thread Priority Service) | 9B | c9860c5 | ✅ Shipped |
| AD-641e (LearnedShortcut Registry) | 9A | (verified at finalize.py:789) | ✅ Shipped |
| AD-641f (Engineering Sensor Service) | 9A | (verified at finalize.py:767) | ✅ Shipped |
| **AD-641d (Crew Deliberation Protocol)** | **9C** | **pending** | **Approved — ships in this dispatch** |

**On Builder commit:** GitHub issue #277 is ready to close. The umbrella's 6 sub-ADs ship the full cross-cutting surface for HXI-foundation observability + crew-coordination + judgment-decision plumbing.

---

## Wave 9 Retrospective Recommendation

**Wave 9 retrospective is recommended.** This is a novel wave shape worth documenting:

- **First 4-sub-wave umbrella ship.** Wave 9 split a single AD (641) into a/b/c/d (with e/f also in-scope) and dispatched across 9A (origin) → 9B (mid-ship) → 9C (closure). No prior wave ran a sub-AD chain across three dispatches.
- **Cross-wave dependency discipline.** Wave 9C's v1 isolation rule (`zero direct calls into Wave 9A/9B artifacts`) was honored exactly — 0 references in 641d. This is the first wave where a "cross-wave attribute drift" defect class was specified up-front in the dispatch and verified by the pass-1 review. Hard-stop #2 was a new condition; documenting how it was enforced is worth a retrospective entry.
- **Wave 9B structural-defect propagation taxonomy.** The pass-1/pass-2 catalog (async/sync, kwarg drift, row-shape, tree-vs-flat, missing field, attribute drift) crystallized into a reusable proactive checklist. It caught 0 defects in 9C — partially because 641d was structurally simple, partially because the catalog informed the author's drafting. The catalog should graduate from review-time prose to a tooling extension (phantom-API pre-check addition or a new `wave-defect-precheck` script) — recommend filing as a hygiene AD alongside the retrospective.
- **Tolerance budget held.** Wave 9C consumed 1 of 1 ⚠️ allowance and converged at pass-2 with ✅. The convention #15 envelope worked as designed; no wave overrun.

**Suggested artifact:** `docs/development/wave-9-retrospective.md` (or extend an existing wave-retros doc) authored by the architect after umbrella closure.

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## Stage Completion

- ✅ Pass-1 review complete (commit 2a22d07).
- ✅ Revision applied (commit a1ab2a3).
- ✅ Pass-2 re-review complete (this document).
- ⏳ Builder dispatch pending.
- ⏳ AD-641 umbrella closure pending Builder commit.

**Wave 9C status: green-light for Builder.**
