# β review (collapsed onto δ) — cycle/397

**Issue:** cnos#397 — Phase 4a of #366
**Reviewer identity:** delta@cdd.cnos (β-collapsed-on-δ per dispatch)
**Mode:** R1 final review

## §1 AC oracle re-runs (mechanical β verification)

### AC1: PASS

Frontmatter at `src/packages/cnos.cdd/skills/cdd/delta/SKILL.md` lines 1-38 contains all 7 required fields (`name`, `description`, `artifact_class`, `governing_question`, `parent`, `triggers`, `scope`) plus matching-operator extras (`kata_surface`, `visibility`, `inputs`, `outputs`, `requires`, `calls`). β confirms.

### AC2: PASS

`## 1. Outward membrane` (line 65) and `## 2. Inward membrane` (line 141) both exist. Each side cross-references the other surfaces: §1 → RECEIPT-VALIDATION.md (verdict composition), operator/SKILL.md (mechanics), CCNF (cell outcomes). §2 → gamma/SKILL.md (template), alpha/SKILL.md (constraint), beta/SKILL.md (verification), the mesh. The two-sided ASCII diagram in the Core Principle (lines 47-56) makes the framing unambiguous. β confirms.

### AC3: PASS

`rg "δ-inward-membrane|inward membrane" src/packages/cnos.cdd/skills/cdd/` returns:
- `delta/SKILL.md` — substance (header + the doctrine prose in §2)
- `operator/SKILL.md` — header at line 252 (kept for in-repo navigation) + redirect prose at line 254 (which names the doctrine to direct readers to delta/)

The substance lives ONLY in `delta/SKILL.md`. The operator/SKILL.md occurrences are the AC3-mandated "one-line cross-reference + redirect" (the redirect text needs to mention the doctrine name to be a useful redirect). β confirms intent satisfied.

### AC4: PASS

Override-as-degraded language at `delta/SKILL.md` line 189 (lead sentence of §3) and throughout §3.1, §3.2, §3.5. Verdict-vs-decision distinction explicit in:
- §3.1 (three failure modes)
- §3.2 (biconditional detection rule)
- §3.5 (ValidationVerdict-vs-BoundaryDecision table)

Cites `RECEIPT-VALIDATION.md` §Q4 as the cnos#367 freeze source. β confirms.

### AC5: PASS

Mechanical oracle:
```
$ rg "operator/SKILL.md.*§3a|operator/SKILL.md.*inward membrane" src/packages/cnos.cdd/skills/cdd/
src/packages/cnos.cdd/skills/cdd/delta/SKILL.md:173: (Phase 4a landing-note, historical reference)
```

Zero hits in other skills (γ, α, β). γ/α/β skill cross-references updated to `delta/SKILL.md` §2. β confirms.

### AC6: PASS

`operator/SKILL.md` after edits retains:
- Frontmatter (unchanged)
- Core Principle (unchanged)
- Algorithm steps 1-7 (step 7 enriched with delta/SKILL.md ref for override doctrine — improvement, not removal)
- Git identity table (unchanged)
- §1 Route, §2 Wait (unchanged)
- §3 Gate — table + mechanics retained; role-policy redirected to delta/
- §3.4 release-cut runbook (algorithm + `scripts/release.sh` invocation + manual-tag prohibition + tag-message generation) — fully retained
- §5 Dispatch configurations (unchanged)
- §6 What operator does NOT do (unchanged)
- §7 Cycle lifecycle (unchanged)
- §8 Timeout recovery (unchanged; override-declaration §7.3 ref updated from §4 → delta/SKILL.md §3)
- §9 Embedded Kata (unchanged; Kata B retains operator-as-coordinator's override-routing exercise)
- §10 Wave Coordination (unchanged)

`rg "γ=δ collapse" operator/SKILL.md` returns hits at §5.2 — operator-as-coordinator preserved. β confirms.

### AC7: PASS

`rg "scripts/release.sh|gh run list" delta/SKILL.md` returns:
- Line 94: "the `scripts/release.sh` runbook lives in `operator/SKILL.md` §3.4 (Phase 4c relocates)" — authority-naming context (points at where mechanics live)
- Line 338: "Phase 4c — release-effector mechanics (pending). … (`scripts/release.sh` invocation, CI polling commands, branch cleanup runbook, manual-tag prohibition) … relocate" — authority-naming + Phase 4c forward-reference

Zero `gh run list` hits. No step-by-step runbook prose. β confirms.

## §2 Particular β-rigor checks (per dispatch instructions)

### §2.1 Implementation-contract conformance (cnos#393 Rule 7)

All 7 axes pinned by the issue body satisfied (per self-coherence.md §2). β verifies the diff conforms to every axis:

- Diff hunks are exclusively .md edits (axis 1: Language=Markdown). ✓
- No CLI added (axis 2: CLI target=N/A). ✓
- New file at `src/packages/cnos.cdd/skills/cdd/delta/SKILL.md`; operator/SKILL.md retained at original path; γ/α/β skills edited within `cdd/` (axis 3: Package scoping). ✓
- operator/SKILL.md retained (NOT deleted); δ-role content extracted; harness mechanics not moved (Phase 4b); release-effector mechanics not moved (Phase 4c) (axis 4: Existing-binary disposition). ✓
- No new deps (axis 5: Runtime deps=None). ✓
- No JSON edits (axis 6: JSON contract=N/A). ✓
- operator/SKILL.md continues to exist; 4 δ-role-content refs updated; non-δ-role refs preserved (axis 7: Backward compat). ✓

**Implementation-contract coherence verified. β confirms.**

### §2.2 No δ-content lost (β-rigor invariant)

β re-reads the pre-edit `operator/SKILL.md` content (per git show on the parent commit) and verifies each removed paragraph appears in `delta/SKILL.md`. Content-loss audit in self-coherence.md §3 enumerates the mapping; β cross-checks:

- §3.1 table → delta §1.1 table: row-by-row match (8 rows). ✓
- §3.2 prose + 4 examples → delta §1.2: verbatim semantics; one example updated to point at delta/SKILL.md §3 for override (improvement, not loss). ✓
- §3.3 prose + 2 examples → delta §1.3: verbatim. ✓
- §3.4 role-policy paragraphs ("triad's work not complete until tagged"; "δ blocks release until CI green"; "owns recovery on red"; "CI-green → declares complete; CI-red → owns failure, investigate, classify, fix-or-escalate, re-verify, operator override") → delta §1.1 (last paragraph) + §1.1 CI-green/red bullets + §3.3 (escape hatch for known pre-existing failures named explicitly). ✓
- §3.5 → delta §1.4: verbatim. ✓
- §3a (lines 250-307) → delta §2 (entire): every paragraph and bullet preserved; the "Phase 4 (δ split) — relocation target" framing becomes "§2.2 Phase 4a landing note" with the same substance (this section *has* landed here as Phase 4a). ✓
- §4.1-§4.3 → delta §3.3, §3.4: every override criterion + protocol step + not-for-taste example preserved; enriched with cnos#367 override-block field requirements (additive). ✓

**No δ-content lost. β confirms.**

### §2.3 operator/SKILL.md still functions (no broken cross-references)

β verifies internal cross-references in operator/SKILL.md still resolve:

- Algorithm step 7 references delta/SKILL.md §3 (override doctrine) — file exists, section exists. ✓
- §3 top-of-section box references delta/SKILL.md §1 and §3 — sections exist. ✓
- §3.1 references delta/SKILL.md §1.1 — section exists. ✓
- §3.2 references delta/SKILL.md §3 — section exists. ✓
- §3.3 references delta/SKILL.md §1.3 — section exists. ✓
- §3.4 references delta/SKILL.md §1.1 — section exists. ✓
- §3.5 references delta/SKILL.md §1.4 — section exists. ✓
- §3a redirect references delta/SKILL.md §2 "Inward membrane" — section exists. ✓
- §4 redirect references delta/SKILL.md §3 — section exists. ✓
- §timeout-recovery §7.3 references delta/SKILL.md §3 (was §4 self-ref) — section exists. ✓

β verifies external cross-references from other cdd/ skills still resolve:

- gamma/SKILL.md line 363 → delta/SKILL.md §2 — section "Inward membrane — γ contract → α-ready dispatch" exists at line 141. ✓
- gamma/SKILL.md line 370 → delta/SKILL.md §2 — same. ✓
- alpha/SKILL.md line 355 → delta/SKILL.md §2 — same. ✓
- beta/SKILL.md line 175 → delta/SKILL.md §2 — same. ✓

All cross-references resolve. operator/SKILL.md still functional. β confirms.

### §2.4 Phase 4b/4c surfaces NOT touched (extract is δ-role only)

β verifies the diff:
- Dispatch configurations §5 (operator/SKILL.md): NOT moved — stays in operator/SKILL.md. ✓
- Timeout recovery §8 (operator/SKILL.md): NOT moved — stays. ✓
- Embedded Kata §9 (operator/SKILL.md): NOT moved — stays. ✓
- Wave Coordination §10 (operator/SKILL.md): NOT moved — stays. ✓
- `scripts/release.sh` runbook §3.4 (operator/SKILL.md): NOT moved — stays. ✓
- `release/SKILL.md`: NOT edited (zero changes in diff). ✓
- `post-release/SKILL.md`: NOT edited (zero changes in diff). ✓
- `CDD.md`: NOT edited (zero changes in diff). ✓
- `RECEIPT-VALIDATION.md`, `COHERENCE-CELL-NORMAL-FORM.md`, `COHERENCE-CELL.md`: NOT edited (zero changes; doctrine surfaces preserved per Phase 4a scope). ✓
- `activation/SKILL.md`, `review/SKILL.md`: NOT edited (these cite operator/SKILL.md for harness/dispatch-config content, not δ-role; left for Phase 4b/4c). ✓

β confirms scope discipline: only δ-role content moved; harness (Phase 4b) and release-effector (Phase 4c) surfaces untouched.

## §3 Findings

None. R1 APPROVE.

## §4 Verdict

**R1 APPROVE.** All 7 ACs PASS. Implementation-contract conformance verified (cnos#393 Rule 7). No δ-content lost. No broken cross-references. Phase 4b/4c surfaces untouched.

β authorises merge into main.
