# γ close-out — Cycle 418

**Cycle:** [cnos#418](https://github.com/usurobor/cnos/issues/418) — Sub 4 of [cnos#404](https://github.com/usurobor/cnos/issues/404)
**Date:** 2026-05-22.

## Closure declaration

Cycle/418 is closed. β APPROVE-d R1; α and β close-outs filed; γ filing this closure declaration; courtesy stub `cdd-iteration.md` filed per cnos#401 cadence rule with `protocol_gap_count: 0`; INDEX.md row added.

The cycle's intent (Sub 4 of the cnos#404 handoff/coordination extraction wave; extract mid-flight rescue + artifact-channel wire-format invariants into cnos.handoff) is delivered. Two new canonical sub-skills exist at handoff paths; HANDOFF.md surfaces both as Landed; extraction-map.md §4 + §5 + §8 rows marked v0.1 migrated; cross-references in cdd consumers + handoff sibling sub-skills + cds (two pointer paragraphs) all repaired; cnos.cdr untouched; no schemas / runtime / cdd-verify changes; rescue mechanism + artifact-file names preserved verbatim from the empirical practice.

## Wave progression — cnos#404

| Sub | Issue | Status | Surface | Lines |
|---|---|---|---|---|
| Sub 1 | [cnos#415](https://github.com/usurobor/cnos/issues/415) | landed | package skeleton + extraction map | — |
| Sub 2 | [cnos#416](https://github.com/usurobor/cnos/issues/416) | landed | cross-repo/SKILL.md wholesale move | 644 (now 643 post-frontmatter edits) |
| Sub 3 | [cnos#417](https://github.com/usurobor/cnos/issues/417) | landed | dispatch/SKILL.md synthesis (γ§2.5 + operator§3a + delta§2) | 417 |
| Sub 4 | [cnos#418](https://github.com/usurobor/cnos/issues/418) | **this cycle** | mid-flight/SKILL.md + artifact-channel/SKILL.md (two parallel surfaces in one cycle) | 348 + 361 = 709 |
| Sub 5 | (forthcoming) | pending | receipt-stream/SKILL.md (cdd-iteration.md + INDEX.md ε feed) | — |
| Sub 6 | (forthcoming) | pending | cross-reference cleanup + close cnos#404 tracker | — |

## Triage of α and β close-outs

α close-out: 3 findings (F1, F2, F3), all `no-patch` (observations / retrospective justifications / dependency ordering).

β close-out: 0 findings.

No skill-gap, protocol-gap, tooling-gap, or metric-gap findings filed. Courtesy stub `cdd-iteration.md` filed per cnos#401 cadence rule.

## Cycle iteration triggers (β-review verdict)

- Review rounds: 1 (well below the > 2 threshold).
- Mechanical ratio: high (all 11 ACs are mechanical file-existence / line-count / grep / negative-grep checks).
- Avoidable failure: none.
- Loaded-skill-failed-to-prevent: none.

No cycle-iteration triggers fire; cycle closes cleanly.

## Outputs

- **Immediate:** the two new sub-skills + the HANDOFF.md / extraction-map.md / cross-reference repairs are the cycle's substantive output; landed in α-418 commit.
- **Deferred:** Sub 5 (receipt-stream) and Sub 6 (cross-ref cleanup) are the next subs of cnos#404; not in scope this cycle.
- **Operator action:** δ merges `cycle/418` to main with `Closes #418` after this β-418 close-out commit lands.

## Hub memory

Pattern: γ+α+β collapsed on δ; docs-only package migration; sequential same-session commits under per-role prefixes (`γ-418:`, `α-418:`, `β-418:`); third cycle (#416, #417, #418) in a row using this pattern; operationally stable. Pattern continues to apply for Sub 5 / Sub 6 dispatch.
