# γ Close-Out — Cycle #262 (PR #265)

## Cycle summary

| | |
|---|---|
| Issue | #262 — cn pack: derive packlist from content-class model instead of walking entire package root |
| PR | #265 — squash-merged to main as `9a1c7df` |
| Ships in | **unreleased** — partial substantial feature |
| α | Claude (shared identity — `usurobor` GitHub account) |
| β | Claude (shared identity — `usurobor` GitHub account) |
| γ | Sigma |
| Review rounds | 3 |
| Findings | 7 (4 mechanical / 3 judgment) |
| Cycle level | L6 |

## Selection

#262 was created this session from a design discussion with the operator. It followed naturally from #261 (filesystem-based content discovery) — applying the same model to packaging. #264 (deterministic tarballs) was executed first as a prerequisite.

Selection order: #264 (small fix, unblocks I3) → #262 (substantial, builds on #264).

## Dispatch

- α dispatched with issue ref + Tier 3 skills (eng/go, eng/test) + explicit PR creation instruction
- β dispatched with issue ref + subscribe/wait instruction

## Close-out triage

| Finding | Source | Type | Disposition | Artifact |
|---------|--------|------|-------------|----------|
| D1/D1′ rebase race (×2) | α+β | system/mechanical | #266 filed — L7 MCA | github.com/usurobor/cnos/issues/266 |
| C1 AC2 ClassSkills | α+β | judgment | Closed on-branch | `eb9a6fe` |
| C2 dispatch↔PR scope drift | β | judgment/γ-side | Drop (n=1). Dispatch prompts fixed in CDD skill | `86602d92` |
| B1 root-file filter | β | judgment | Deferred under open #262 | — |
| A1 branch name | β | mechanical/γ-side | Drop. Not mechanizing yet (n=2) | — |
| A2 missing CDD Trace | α | mechanical | Closed on-branch | PR body rewrite |
| Cross-Go-toolchain drift | α | tooling | Closed — Go 1.24 bump | `da92e44` |

## §9.1 triggers

- [x] review rounds > 2 (actual: 3)
- [x] avoidable tooling/environmental failure (dist-rebase-race ×2, cross-Go-toolchain ×1)
- [ ] mechanical ratio > 20% with ≥ 10 findings (57% but N=7 < floor)
- [ ] loaded skill failed to prevent a finding (gate was adequate, race is structural)

## Cycle iteration (§2.8–§2.9)

**Root cause:** system-level. Committed `dist/` + main-side package edits = merge race. Not skill-level.

**MCA:** #266 filed with three candidate options. β recommends option A (move dist out of git). γ concurs — cleanest elimination of the class.

**Independent γ process-gap check (§2.9):** Dispatch prompt described full issue scope when PR was a slice (C2). Fixed this session by updating CDD dispatch prompt template to reference issue only, not paraphrase it. Additionally, discovered and fixed a broader pattern: agents treat skill instructions as suggestions when system prompts conflict. Six CDD skill patches landed (see adhoc thread `20260424-cdd-skill-agent-compliance.md`).

**Skill patches landed this cycle (immediate MCA):**
- `b4ca7e49` — α PR creation required
- `73de30bb` — α PR subscribe immediate  
- `22c0be0f` — α reply to RC comments
- `07f021f6` — β subscribe + wait
- `4b720cf2` — section-by-section writing for all close-outs
- `86602d92` — dispatch prompts trimmed

## α skill gap candidates (from α close-out §Skill gap candidates for γ)

| # | Candidate | γ disposition |
|---|-----------|---------------|
| 1 | α pre-review gate #1 is ritual-shaped — promote to mechanical pre-push check | **Defer to #266.** If #266 eliminates committed dist (option A), the rebase-race class disappears and this gate is no longer load-bearing for I3. If #266 picks option B/C, revisit. |
| 2 | eng/go §2.13 should name cross-toolchain axis | **Immediate MCA — patch now.** Small, clear, prevents rediscovery. |
| 3 | SSoT peer enumeration worked example in α §2.3 | **Drop (n=1).** α §2.3 already says "enumerate the family before claiming closure." Adding a worked example for one occurrence is premature. If C1-class findings recur, revisit. |
| 4 | CDD process-level MCA for dist race | **#266 filed.** Covered. |

## Deferred outputs

- #262 stays open: AC1 (rename), AC5 (--list/--dry-run), AC3 root narrowing, .gitignore
- #266: dist-rebase-race MCA — next cycle

## Hub memory

- Daily reflection: `cn-sigma/threads/reflections/daily/20260424.md` — `be70d9585`
- Adhoc thread: `cn-sigma/threads/adhoc/20260424-cdd-skill-agent-compliance.md` — `be70d9585`

## Branch cleanup

- ✅ `claude/alpha-skill-go-implementation-LJVHx` deleted (post-3.57.0 release)
- ✅ `claude/add-content-class-constant-Oo4a8` deleted
- ✅ `sigma/cdd-skill-patches-post-261` deleted
- No merged remote branches remain

## Next MCA

#266 — dist-rebase-race. Highest leverage: unblocks all future packaging-adjacent cycles. Design-first (needs option selection before α dispatch).

Cycle #262 closed. Next: #266.
