# γ close-out — cycle #375

Cycle: usurobor/cnos#375 — γ-side pre-dispatch gate for `gamma-scaffold.md` (rule 3.11b symmetry).

Branch (pre-merge): `origin/cycle/375` at `c4d29344`. Base: `origin/main` at `dd5a36d9`.

Wave: 2026-05-19 protocol hygiene (`.cdd/waves/2026-05-19-protocol-hygiene/manifest.md`).

## Summary

Single skill-patch cycle adding a γ-side binding pre-dispatch gate for `.cdd/unreleased/{N}/gamma-scaffold.md` to `gamma/SKILL.md` §2.5 Step 3b, framed as the dual of `review/SKILL.md` rule 3.11b and anchored on cycle #369's R1 RC round-trip. Implementation is one new sub-section (26 line insertion), zero structural change to the surrounding skill, zero non-skill-patch surface touched.

## Close-out triage

| Finding | Source | Type | Disposition | Artifact / commit |
|---|---|---|---|---|
| β-α collapse acknowledged | β-review + β-closeout | process / session-collapse | one-off (drop — skill-patch class admits collapse per wave manifest precedent) | acknowledged explicitly in `beta-review.md` and `beta-closeout.md` |
| Mid-cycle rebase onto `dd5a36d9` required | α implementation | mechanical | one-off (drop — `.gitignore` chore landed on main during cycle; rebase mechanical, no semantic content) | rebased branch at α commit `c4d29344` |
| Gate co-located with α dispatch, not branch creation | design choice during α | skill | document the rationale in this close-out (already in self-coherence § CDD Trace) | self-coherence.md lines 39–40 |

No `cdd-skill-gap`, `cdd-protocol-gap`, `cdd-tooling-gap`, or `cdd-metric-gap` findings produced by this cycle. The cycle was *itself* the resolution of a `cdd-protocol-gap` (the one named in the parent issue) — there is no cycle-internal new gap to file. Per closure gate row 14, no `cdd-iteration.md` is required for an empty-findings cycle in this class.

## §9.1 trigger assessment

| Trigger | Fired? | Notes |
|---|---|---|
| Review churn (rounds > 2) | no | R1 APPROVED; one round |
| Mechanical overload (mechanical ratio > 20% AND total findings ≥ 10) | no | zero findings |
| Avoidable tooling / environment failure | no | rebase onto `dd5a36d9` was mechanical, not a tooling failure (it was a genuine ancestry effect of parallel main commits during the cycle) |
| Loaded-skill miss | no | the cycle's purpose was to *add* a missing γ-side gate; the absence was a known gap, not a loaded-skill miss |

No triggers fired.

## Cycle iteration (independent γ check, per §2.9)

Asking the four independent γ questions:

1. **Did this cycle reveal a recurring friction?** Mild: the mid-cycle rebase onto `dd5a36d9` was a reminder that `git diff origin/main..HEAD --stat` is sensitive to ancestry drift. Not a recurring friction at the γ-cycle level — at most a documentation note. No skill patch warranted.
2. **Was any gate too weak or too vague?** No. AC1–AC4 oracles were precise and independently verifiable.
3. **Did a role skill fail to prevent a predictable error?** No — the cycle ran clean.
4. **Did coordination burden show a better mechanical path?** No; single-session δ-as-agent for a skill-patch is exactly the wave manifest's intended shape.

No process patch warranted. Stated explicitly here per §2.9 closing rule.

## Deferred outputs

None.

## Hub memory

No hub-memory update warranted for a single skill-patch cycle.

## Next MCA

This cycle is one of three in the 2026-05-19 protocol-hygiene wave. Next-MCA at the wave level is whichever of #377 / #378 is not yet merged (each is independently dispatched by the wave's δ); at the cycle level, this cycle's specific next-MCA is: *none — cycle delivers a binding γ-side gate that is itself the next-MCA from cycle #369's close-out triage.*

## Cross-cycle coordination

Per wave manifest: cycle #377 may also touch `gamma/SKILL.md` (§2.1 + §2.7). This cycle edits §2.5 only. If #377 merges first, this cycle's merge will integrate cleanly by section (no overlap). If this cycle merges first, #377's merge will integrate this cycle's §2.5 addition unchanged.

Cycle #378 patches `review/SKILL.md` rule 3.11b discoverability but does not touch `gamma/SKILL.md`; no conflict expected.

## Closure declaration

Cycle #375 closed. Next-cycle pointer: per wave manifest, parallel sibling cycles #377 and #378 are dispatched independently; sequential wave-level next-MCA awaits ε's wave close-out.
