# γ closeout — cycle/415

**Issue:** [cnos#415](https://github.com/usurobor/cnos/issues/415) — Sub 1 of [#404](https://github.com/usurobor/cnos/issues/404): Bootstrap `cnos.handoff` package skeleton + extraction map
**Branch:** `cycle/415` (from `bc29c009`)
**HEAD:** `cb40e282` (α-415) → γ closeout commit forthcoming
**Mode:** docs-only + package skeleton + extraction map
**Collapse:** β-α-collapse-on-δ; dispatched as `γ+α+β collapsed on δ`

## Cycle summary

Shipped:
- `cnos.handoff` package skeleton at `src/packages/cnos.handoff/` (5 new files: manifest, README, loader-skill, .gitkeep, extraction-map)
- Extraction map (the load-bearing artifact of Sub 1) — 12 `##` sections; 6 required surface families + 2 discovered + close-out row; 43 sub-assignment rows; per-row migration-semantics commitments for Subs 2–6
- 7 cycle close-out files under `.cdd/unreleased/415/`: gamma-scaffold, self-coherence, beta-review, alpha-closeout, beta-closeout, gamma-closeout (this file), cdd-iteration courtesy stub
- 1 row appended to `.cdd/iterations/INDEX.md`

Untouched (per #415 AC6–AC9):
- `src/packages/cnos.cdd/` — 0 lines changed
- `src/packages/cnos.cdr/` — 0 lines changed
- `src/packages/cnos.cds/` — 0 lines changed
- `src/packages/cnos.cdd/commands/cdd-verify/` — 0 lines changed
- `src/go/` — 0 lines changed
- `schemas/ccnf-o/` — absent

## AC summary (β-verified)

| AC | Verdict | Evidence |
|---|---|---|
| AC1 | PASS | All 4 files at canonical paths; README = 77 lines (≥ 50) |
| AC2 | PASS | `cn build --check` reports `cnos.handoff: valid` |
| AC3 | PASS | README declares wire-format ownership + 3 consumers + CCNF-O boundary + #404 cite + cross-repo cite |
| AC4 | PASS | SKILL.md frontmatter has all required fields; section shape mirrors cnos.cds |
| AC5 | PASS | `grep -c "^## " docs/extraction-map.md` = 12 (≥ 6) |
| AC6 | PASS | All three packages: 0 lines diff vs origin/main |
| AC7 | PASS | `schemas/ccnf-o/` absent |
| AC8 | PASS | `cdd-verify/` diff: 0 lines |
| AC9 | PASS | `src/go/` diff: 0 lines |

All 9 ACs PASS.

## Cycle metrics

- Review rounds: 1 (R1 APPROVED; ≤ 2 threshold)
- Mechanical-vs-judgment ratio: 100% mechanical (above 20% floor; no trigger fired)
- Avoidable tooling/environmental failure: none
- Loaded skill failed to prevent a finding: none
- `protocol_gap_count`: 0

Per `cnos.cds/skills/cds/CDS.md §"Assessment" → "Cycle iteration triggers"`: no trigger fired. `cdd-iteration.md` is required only when `protocol_gap_count > 0`; this cycle's count is 0, so the artifact is optional. **Courtesy stub written** ([`cdd-iteration.md`](cdd-iteration.md)) per backward-compatibility allowance — empty-findings files remain valid artifacts.

## Receipt summary (close-out triage)

Per `cnos.cdd/skills/cdd/post-release/SKILL.md §5.6b` cadence rule, the receipt for this cycle carries:

- `protocol_gap_count`: 0
- No `cdd-skill-gap` findings
- No `cdd-protocol-gap` findings
- No `cdd-tooling-gap` findings
- No `cdd-metric-gap` findings

The cycle ran cleanly. The structural precedent (cnos#406 — cnos.cds Sub 1 bootstrap) was followed without divergence; the dispatch contract (β-α-collapse-on-δ; pinned package name; pinned schemas) held through to merge.

## Configuration floor + collapse declaration

β-α-collapse-on-δ permitted per cnos.cds Field 6 for docs-class matter. Declared in `beta-review.md §"Configuration-floor declaration"`. No violation. Empirical precedent: cnos#414 (essay authoring; β-α-collapse-on-δ; merged 2026-05-22 at `bc29c009`).

## Cross-repo trace

None. This cycle did not produce any `patch-landed` findings with `Cross-repo` disposition; no cross-repo bundle required per `cnos.cdd/skills/cdd/cross-repo/SKILL.md`.

## Push + merge

After γ closeout commit lands, γ pushes `cycle/415` to `origin/cycle/415`. Operator-as-human merges with `Closes #415` per the cycle-metadata merge instruction.

## Hand-off to Subs 2–6

After merge:
1. Operator files Subs 2–6 of cnos#404 against the extraction map at `src/packages/cnos.handoff/docs/extraction-map.md`.
2. Sub 2 is the largest (cross-repo wholesale move; 644 lines); dispatch first.
3. Subs 3, 4, 5 dispatch sequentially (or in parallel if branches can be kept independent — the destinations are co-resident in `skills/handoff/dispatch/` so Sub 3 must land before Sub 4 if Sub 4 cites Sub 3's surface).
4. Sub 6 (cross-reference cleanup) dispatches last; depends on Subs 2–5 completing.
5. After Sub 6 closes, `cnos#404` closes; `cnos#405` Track A (CCNF-O) becomes unblocked.

## Cycle closed

γ obligations met. β APPROVE R1. All ACs PASS. Ready for push + merge.
