# γ close-out — Cycle 419

**Cycle:** [cnos#419](https://github.com/usurobor/cnos/issues/419) — Sub 5 of [cnos#404](https://github.com/usurobor/cnos/issues/404)
**Date:** 2026-05-22.

## Closure declaration

Cycle/419 is closed. β APPROVE-d R1; α and β close-outs filed; γ filing this closure declaration; courtesy stub `cdd-iteration.md` filed (this cycle authors against the new canonical doctrine — see meta-note in `cdd-iteration.md`); INDEX.md row added.

The cycle's intent (Sub 5 of the cnos#404 handoff/coordination extraction wave; extract cdd-iteration receipt-stream + INDEX.md aggregator doctrine into cnos.handoff) is delivered. The new canonical sub-skill exists at `cnos.handoff/skills/handoff/receipt-stream/SKILL.md`; HANDOFF.md surfaces all 5 sub-skills as Landed; extraction-map.md §6 rows marked v0.1 migrated; post-release/SKILL.md §5.6b is now a 6-line pointer; cross-references in cdd consumers (epsilon, activation) + handoff sibling sub-skills (artifact-channel, cross-repo, SKILL.md loader, README) all repaired; cnos.cdr untouched; no schemas / runtime / cdd-verify changes; per-finding shape + INDEX row format + cadence rule + disposition vocabulary 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) | landed | mid-flight/SKILL.md + artifact-channel/SKILL.md (two parallel surfaces) | 348 + 361 = 709 |
| Sub 5 | [cnos#419](https://github.com/usurobor/cnos/issues/419) | **this cycle** | receipt-stream/SKILL.md (post-release §5.6b extraction) | 340 |
| Sub 6 | (forthcoming) | pending | cross-reference cleanup + close cnos#404 tracker | — |

**All 5 handoff sub-skills now Landed.** Sub 6 will close the cnos#404 tracker.

## Triage of α and β close-outs

α close-out: 3 findings (F1, F2, F3), all `no-patch` (observations / pattern noting / boundary clarifications).

β close-out: 0 findings.

No skill-gap, protocol-gap, tooling-gap, or metric-gap findings filed. Courtesy stub `cdd-iteration.md` filed per cycle/401 cadence rule (now canonical at `cnos.handoff/skills/handoff/receipt-stream/SKILL.md §3.2`).

## 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 new receipt-stream sub-skill + the §5.6b pointer rewrite + HANDOFF.md / extraction-map.md / cross-reference repairs are the cycle's substantive output; landed in α-419 commit.
- **Deferred:** Sub 6 (cross-ref cleanup + close cnos#404 tracker) is the next sub; not in scope this cycle.
- **Operator action:** δ merges `cycle/419` to main with `Closes #419` after this β-419 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-419:`, `α-419:`, `β-419:`); fourth cycle (#416, #417, #418, #419) in a row using this pattern; operationally stable.

Meta-pattern: cycle/419 is the first cycle to author its own close-out artifacts against the new canonical receipt-stream doctrine it is itself establishing. The per-finding shape preserved verbatim means the meta-self-coherence is automatic — the courtesy stub written under the new canonical reads structurally identical to one written under the old canonical at §5.6b. The migration is shape-preserving by construction.

With Sub 5 closed, the cnos#404 wave's v0.1 substantive sub-skill set is complete. Sub 6's mechanical citation sweep across cnos.cdd / cnos.cdr / cnos.cds / docs/gamma essays remains; the wave closes when Sub 6 lands.
