# cdd-iteration — cycle/397

**Issue:** cnos#397 — Phase 4a of #366
**Cycle:** cycle/397
**Dispatch:** §5.2 single-session δ-as-γ; γ+α+β collapsed on δ
**Protocol gap count:** 0

## Findings

No protocol-level gaps surfaced. The extract-by-restructure pattern (substance previously anchored in cnos#393 §3a; this cycle moves it to its membrane-policy home) carried cleanly with the artifact set documented (`gamma-scaffold.md` → `design-notes.md` → SKILL.md edits → `self-coherence.md` → `beta-review.md` → close-outs).

## Observations (non-finding; ε advisory)

- The β-α-collapsed-on-δ pattern is well-suited to extract-by-restructure cycles where the content map between source and target is purely mechanical. The content-loss audit (β-rigor invariant per cnos#393 Rule 7) becomes a row-by-row check; no role-isolation surface area is needed to catch the failure mode the invariant guards against.
- The cnos#393 → cnos#397 sequencing pattern (precursor authors the doctrine; successor relocates it) discharges design effort cleanly: cnos#393's "Phase 4 (δ split) — relocation target" framing in operator/SKILL.md §3a became this cycle's "§2.2 Phase 4a landing note" in delta/SKILL.md §2 with the same substance, the futuristic framing converted to present-tense. If a future doctrine extension wants to anchor pre-relocation evidence, this pattern is the template.
- A subtle but important property of the split: operator/SKILL.md §3 retains a "## 3. Gate" header (operator-as-coordinator still has gate-execution responsibilities — pushing β's merge, executing tag push on δ's authority, etc.), while delta/SKILL.md §1 "Outward membrane" is where the δ-role-policy lives. The two surfaces are not redundant; they describe different actors of the same concern (coordinator dispatching the action vs role authorising the action). The split is what makes Phase 4b (harness substrate) and Phase 4c (release-effector) cleanly separable from the role-skill.

## Dispositions

| Finding | Disposition |
|---|---|
| (none) | n/a |

## No-action

This file is required by closure-gate; the cycle had no protocol gaps to surface.
