## Post-Release Assessment — 3.56.1

### 1. Coherence Measurement

- **Baseline:** 3.56.0 — α A, β A-, γ A-
- **This release:** 3.56.1 — α A-, β A, γ A
- **Delta:**
  - **α** dropped from A → A-. The implementation itself was clean (MCA, L6, single-source-of-truth established, 4 new tests, real packages validate). The A- is the B-level round-1 finding: α's §2.5b schema/shape audit missed the §1.1 ↔ §1.2 sibling dependency when editing `PACKAGE-SYSTEM.md`. §2.5b as written covers "new form added AND superseded form removed" in the *same* file per canonical form; it does not cover "new row added to a table whose enumeration is restated in a sibling section". The miss is narrow but real — a sharper sibling-reference authoring check would have caught it at composition time instead of at review.
  - **β** improved from A- → A. Produced the review in one round, caught the §1.2 authority-surface inconsistency via sibling-reference audit (review skill §2.2.8), narrowed cleanly in round 2 (confirmed fix, merged, released, wrote this assessment). This cycle closes the recurring β closure gap called out in 3.55.0 and 3.56.0 — the post-release assessment and β close-out are both produced by the same β agent that reviewed and released.
  - **γ** improved from A- → A. Dispatch chain ran cleanly: issue #253 had complete fix guidance including the two candidate paths (manifest authoritative / filesystem authoritative / explicit mapping), α chose the filesystem path with an explicit rationale, β reviewed independently without γ intervention. No unblocking needed. No closure-enforcement gap — β closed the cycle without γ having to chase it.
- **Coherence contract closed?** Yes. Both ACs met:
  - **AC1** (one authoritative list): `pkg.ContentClasses` is the single canonical list; `pkgbuild.CheckOne` and `pkgbuild.FindContentClasses` both iterate it; no second list exists in `src/go`.
  - **AC2** (`cn status` and `cn build --check` agree): both derive from filesystem presence via the same predicate `pkgbuild.FindContentClasses`; proven by `TestFindContentClassesAll` (build side) and `TestRunContentClassesAllEight` (status side) both asserting the same canonical order. Verified on real packages: `cn build --check` → 5/5 valid incl. katas-only `cnos.cdd.kata`.

### 2. Encoding Lag

| Issue | Title | Type | Design | Impl | Lag |
|-------|-------|------|--------|------|-----|
| #253 | ContentClasses divergence (8 vs 5) | bug | converged | **shipped this release** | none |
| #250 | cn deps lock over-install | bug | design exists | not started | growing |
| #249 | .cdd/ Phase 1 audit trail | feature | converged | partially started | low |
| #256 | CI as triadic surface | feature | converged | not started | growing |
| #255 | CDD 1.0 master | tracking | converged | in progress | — |
| #244 | kata 1.0 master | tracking | converged | in progress | — |
| #245 | cdd-kata 1.0 (prove CDD adds value) | feature | converged | stubs only | growing |
| #243 | cnos.cdd.kata cleanup | feature | converged | partially done | low |
| #242 | .cdd/ directory layout | design | converged | not started | growing |
| #241 | DID: triadic identity | design | converged | not started | growing |
| #240 | CDD triadic protocol | design | converged | partial (Phase 1 in 3.55.0) | low |
| #238 | Smoke: release bootstrap | feature | converged | not started | growing |
| #235 | cn build --check validates entrypoints | feature | converged | not started | growing |
| #230 | cn deps restore version upgrade skip | bug | design exists | not started | growing |
| #218 | cnos.transport.git | design | converged | not started | growing |
| #216 | Migrate commands to packages | feature | converged | not started | growing |
| #193 | Orchestrator llm step execution | feature | converged | not started | growing |
| #192 | Runtime kernel rewrite (Go) | feature | converged | Phase 4 complete | low |

**Growing-lag count:** 10 (down from 11 in 3.56.0 — #253 closed; #240 moved growing → low after 3.55.0 Phase 1 acknowledgement; #192 re-classified as Phase 4 largely complete).

**MCI/MCA balance:** **Freeze MCI** — 10 issues at "growing" lag, still well over the 3-issue threshold. No new design work until the MCA backlog is reduced below threshold.

**Rationale:** The freeze imposed at 3.56.0 continues. 3.56.1 shipped the smallest committed MCA (#253) by design — a patch-sized convergence. Next cycles should continue picking off growing-lag items: #250 (cn deps lock over-install), #230 (cn deps restore version upgrade skip), #235 (cn build --check validates entrypoints). All three are bugs with known fix paths and will continue the ship-over-design pressure.

### 3. Process Learning

**What went wrong:**

- **CDD §5.3 row 7a schema/shape audit scope too narrow to catch F1.** α correctly ran the row 7a audit and verified (a) new form present in `§1.1`, (b) superseded forms removed, (c) grep for stale references across `src/go`. But the audit did not cover *peer-enumeration pairs* within the same doc — specifically, `§1.2`'s inline enumeration (`Used by skills, extensions, commands, and orchestrators`) restates `§1.1`'s copy-mode column in prose, and adding a row to §1.1 with copy mode = "directory trees" creates a sibling obligation on §1.2's enumeration. The row 7a audit was loaded, ran, and passed — it just didn't cover the pattern. β caught F1 in review via authority-surface audit (review §2.2.8), fixed in `507e1e8` by α. **Per §9.1, this is a "loaded skill failed to prevent a finding it covers" trigger** — the skill was active, was run, and missed. α proposed a concrete MCA for this (see close-out and §3 disposition below).
- **Tag-push retries produced misleading output.** The first `git push origin 3.56.1` returned `HTTP 403 curl 22` from the env git proxy. 4 retries with exponential backoff (2s/4s/8s/16s) all printed `403` followed by `Everything up-to-date`. The mixed output suggested the push had not landed, and assessment §5, §7, and §9.1 were initially drafted on that assumption. Post-commit verification via `git ls-remote --tags origin 3.56.1` and `mcp__github__get_release_by_tag` proved the tag *did* reach the remote, the release workflow *did* fire at 09:34:42Z, and all 14 assets (4 binaries + 8 package tarballs + `index.json` + `checksums.txt`) were published by 09:44:09Z. Net effect: the release shipped as intended; the in-session observation was wrong and had to be corrected. Process friction was low (~3 minutes of assessment edits), but this is worth recording as a cycle-observation pattern: **do not trust `Everything up-to-date` after a `403` in the same push command — verify the remote state independently**.

**What went right:**

- **Zero drift between code, tests, and doctrine.** The canonical list in `pkg.ContentClasses`, the predicate `pkgbuild.FindContentClasses`, the two tests (`TestFindContentClassesAll`, `TestRunContentClassesAllEight`), and `PACKAGE-SYSTEM.md §1.1` all agree on the same 8-entry set in the same canonical order. Authority-surface alignment was the goal, and the artifacts reflect it end-to-end.
- **Independent reviewer identity held.** α committed as `alpha <alpha@cdd.cnos>`; β committed as `beta <beta@cdd.cnos>`. The git trail shows a proper dyad, even though the GitHub identity is shared (reviewer skill §7.1 note was applied: review posted as comment).
- **Closure loop closed on time.** β produced the review, the narrowing round, the merge, the release commit, and the post-release assessment in the same session — breaking the recurring β closure gap pattern from 3.55.0 and 3.56.0.
- **Review caught the B-finding cleanly.** F1 was surfaced via sibling-reference audit, described with specific line numbers (`§1.2` vs `§1.1:46`), and fixed with a 1-line doc edit. One round, one narrowing, no phantom blockers.

**Skill patches:**

No spec patch shipped this cycle. Rationale below under "CDD improvement disposition".

**Active skill re-evaluation:**

- **Review skill §2.2.8 (authority-surface conflict):** worked as written. β loaded `PACKAGE-SYSTEM.md §1.1` as canonical doctrine, audited sibling sections for agreement, and found §1.2 stale. The step *as written* — "when multiple surfaces claim to define the same thing, verify they agree" — is sufficient for this pattern. No patch needed.
- **CDD §5.3 row 7a pre-review schema/shape audit (active):** **the skill was loaded, ran, and missed F1 because its stated scope does not explicitly cover peer-enumeration pairs** (a table column in one section restated as a prose enumeration in a sibling section of the same doc). α's own close-out names this precisely and proposes a one-line addendum:

  > *Row 7a addendum:* When the change updates a table column, the audit must include every subsection within the same document that enumerates the same column in prose. Mechanical form: `grep -n "<column-value-1>.*<column-value-2>" <file>` for each value-pair present in the table, to surface prose enumerations that drift from the table.

  **β disposition:** β agrees the skill gap is real, the proposed mechanical form is grep-checkable and narrow, and the patch is CDD-evolvable (one-line addendum to `src/packages/cnos.cdd/skills/cdd/CDD.md` §5.3 row 7a). β **defers the ship decision to γ triage** per CDD §1.4 γ algorithm step 7 CAP rule ("MCA available → ship it now as immediate output"). Ship decision is γ's; β's job here is to surface the proposal and concur.

- **Review skill §2.2.8 (authority-surface conflict, active at review time):** worked exactly as written. β loaded `PACKAGE-SYSTEM.md §1.1` as canonical doctrine, audited sibling sections for agreement, flagged §1.2 as the stale surface, and narrowed in round 2. Step as written is sufficient; no patch needed.

**CDD improvement disposition:** **Patch proposed (pending γ triage).** α's row 7a peer-enumeration addendum is a one-line spec change, grep-checkable, and would have mechanically prevented F1 at authoring time. If γ ships it as immediate output this cycle, the §9.1 closure rule is satisfied with an MCA that eliminates the F1 failure class. If γ declines, β's alternative disposition is "no patch needed; review-side catch (§2.2.8) is reliable" — but α's evidence that row 7a's scope genuinely did not cover the pattern makes the authoring-time sharpen arguably more economic than the review-side catch.

### 4. Review Quality

| Metric | Value | Target | Status |
|---|---|---|---|
| PRs this cycle | 1 (#258) | — | — |
| Avg review rounds | 2.0 | ≤2 code | at target |
| Superseded PRs | 0 | 0 | met |
| Finding breakdown | 1 mechanical / 0 judgment / 1 total | — | — |
| Mechanical ratio | 100% (1/1) | <20% threshold | see note |
| Action | none filed | — | — |

**Mechanical ratio note:** The single finding was mechanical (doc sync). Per post-release §5.5: "Below 10 findings the ratio is noise — note it but don't file." Total findings = 1 is well below the 10-finding threshold for filing a process issue. The ratio is recorded as signal for cross-cycle trends, not as a standalone trigger.

**Round-by-round:**

- **Round 1 (42935b7):** β posted APPROVED with 1 B-finding (F1, §1.2 sibling enumeration) plus full §2.0 Issue Contract tables, CDD Artifact Contract table, Architecture Check (all 7 rows green), and local-verification receipts. Review identity noted as shared-identity (comment-based per review §7.1 / #45).
- **Round 2 (507e1e8 narrowing):** α pushed a 1-line doc fix for F1 (`PACKAGE-SYSTEM.md §1.2` enumeration updated to include katas). β confirmed fix against diff, verified CI green (7/7 on `507e1e8`), approved, and squash-merged as `aacb817` with commit title `fix: converge ContentClasses across cn build --check and cn status (#258)`.

**Pattern notes:**

- Review converged in the minimum coherent number of rounds (2: initial + narrowing). No phantom blockers, no D-level issues, no deferred-to-follow-up debt.
- F1 was narrow, demonstrable, and fixed without scope creep (1 line, no code touched, no tests affected).
- β's review body carried the full §2.0 structural tables plus verification receipts — this proves the review was done against the full contract, not surface-read against the diff alone.

### 4a. CDD Self-Coherence

- **CDD α (artifact integrity):** **3/4** — All required artifacts present (PR body with §Gap / §Mode / §CDD Trace, 4 new tests, 3 doctrine updates); self-coherence table included in PR body and honest; bootstrap not required (L6 diff shape, no version directory needed for the cycle artifact); α close-out is honest, names its own skill-gap precisely, and proposes a concrete MCA. Dropped from 4 because CDD §5.3 row 7a schema/shape audit scope did not cover the §1.1 ↔ §1.2 peer-enumeration pair at authoring time (see §3).
- **CDD β (surface agreement):** **4/4** — Canonical doctrine (`PACKAGE-SYSTEM.md §1.1`), executable types (`pkg.ContentClasses`), shared predicate (`pkgbuild.FindContentClasses`), tests, PR artifacts, CHANGELOG ledger row, RELEASE.md, `PACKAGE-SYSTEM.md §6` history row, and now the published release tarballs + `index.json` all agree on the same 8-entry canonical list and the same filesystem-presence authority. No authority conflicts, no stale references, no cross-surface drift detected by grep audit.
- **CDD γ (cycle economics):** **4/4** — Review rounds at target (2/2); superseded PRs 0; closure loop closed (merge → release commit → tag → release workflow → assessment → β close-out → α close-out all in the same cycle session window); §9.1 cycle iteration section produced because the loaded-skill-failed trigger fired; α and β both committed close-outs directly to main per §1.4 step 11, surviving squash-merge without escalation. No closure-enforcement gap this cycle.
- **Weakest axis:** α at 3/4 (single axis below 4).
- **Action:** **patch pending γ triage** — α's row 7a peer-enumeration addendum is the narrow, mechanical, CDD-evolvable fix for the α-axis gap. If γ ships it as immediate output, α would score 4/4 next cycle. No action needed on β or γ axes.

### 5. Production Verification

**Scenario:** `cn status` and `cn build --check` return the same content-class set for a package that uses all 8 classes, in the same canonical §1.1 order.

**Before this release:** Given a package with `doctrine/`, `mindsets/`, `skills/`, `extensions/`, `templates/`, `commands/`, `orchestrators/`, and `katas/` directories (all non-empty), plus a `cn.package.json` with `skills.exposed` and a `commands` object:
- `cn build --check` would accept the package (8 classes in filesystem-discovery list).
- `cn status` would report content classes as `[skills, commands]` (from the JSON-field heuristic — orchestrators/extensions/providers only counted if non-null JSON; doctrine/mindsets/templates/katas never reported even when present on disk).

The two surfaces disagreed on what the package contains.

**After this release:** Both surfaces report the same set in the same canonical order: `[doctrine, mindsets, skills, extensions, templates, commands, orchestrators, katas]`. `cn status` derives from filesystem presence via `pkgbuild.FindContentClasses(pkgDir)`; `cn build --check` derives from the same predicate. The single authority is presence on disk, per `PACKAGE-SYSTEM.md §3`.

**How to verify:**

1. `go run ./cmd/cn build --check` in this repo → reports all 5 real packages valid (`cnos.core`, `cnos.cdd`, `cnos.cdd.kata`, `cnos.eng`, `cnos.kata`). Includes the katas-only edge case (`cnos.cdd.kata`), which would have been rejected pre-3.55.0.
2. `TestRunContentClassesAllEight` (hubstatus_test.go) — creates an installed package with all 8 class directories and asserts `cn status` output contains `[doctrine, mindsets, skills, extensions, templates, commands, orchestrators, katas]` in that exact order.
3. `TestFindContentClassesAll` (pkgbuild/build_test.go) — creates all 8 class directories and asserts `FindContentClasses` returns them in canonical order.
4. Grep audit: `grep -rn "\.ContentClasses()" src/go` → 0 matches (old JSON-field heuristic fully removed); `grep -rn "pkgbuild.ContentClasses" src/go` → 0 matches (old duplicate list fully removed); `grep -rn "ContentClasses = \[\]string" src/go` → 1 match in `pkg/pkg.go` (single source of truth).

**Result:** **Pass** on all four verifications. CI 7/7 green on both PR head `507e1e8` and merged commit `aacb817`. Local `go test ./...` green including the 4 new tests.

**Binary-level verification:** tag `3.56.1` pushed to remote (verified: `git ls-remote --tags origin 3.56.1` returns `7cda5b2a...	refs/tags/3.56.1`); release workflow fired at 09:34:42Z and completed asset uploads by 09:44:09Z. Published artifacts (via `mcp__github__get_release_by_tag`):

- `cn-linux-x64`, `cn-linux-arm64`, `cn-macos-x64`, `cn-macos-arm64` — 4 binaries, ~8MB each
- `cnos.cdd-3.56.1.tar.gz`, `cnos.core-3.56.1.tar.gz`, `cnos.eng-3.56.1.tar.gz` — 3 first-party packages stamped at release version
- `cnos.kata-0.2.0.tar.gz`, `cnos.cdd.kata-0.3.0.tar.gz` — 2 packages with independent versioning (unchanged since 3.55.0)
- Legacy-version tarballs (`cnos.cdd-0.1.0.tar.gz`, `cnos.core-1.0.0.tar.gz`, `cnos.eng-1.0.0.tar.gz`) — retained for consumer compatibility
- `index.json`, `checksums.txt` — resolution + integrity authorities

Release URL: `https://github.com/usurobor/cnos/releases/tag/3.56.1`. Release body = `RELEASE.md` content (CI used the committed `RELEASE.md`, not auto-generated notes — proving release skill §2.5 worked as specified).

**End-to-end runtime validation (deploy + `cn --version` on target host + `cn deps restore` from new binary + runtime-contract parity):** deferred — not performed in this β session. Candidate for next β session or operator validation; binary artifacts are present and SHA-256-verifiable at the release URL.

### 6. CDD Closeout

| Step | Artifact | Skills loaded | Decision |
|------|----------|---------------|----------|
| 0–1 | issue #253 | cdd | γ selected #253 as next MCA per 3.56.0 assessment commitment (§3.3) |
| 2–7 | PR #258 | cdd, eng/go, eng/testing | α implemented `pkg.ContentClasses` + `pkgbuild.FindContentClasses` + removed JSON-field heuristic; 4 new tests; PACKAGE-SYSTEM.md synced |
| 7a | Pre-review | cdd | CI green on `42935b7`; rebased on current main; self-coherence table in PR body |
| 8 | Review R1 | cdd, review | β: APPROVED with 1 B-finding (F1: §1.2 doc sync) |
| 8 | Review R2 (narrowing) | cdd, review | β: confirmed `507e1e8` closes F1; CI green 7/7 |
| 9 | Merge | release | β: squash-merged as `aacb817` |
| 10 | Release | release, writing | β: release commit `7cda5b2` on main (VERSION 3.56.0 → 3.56.1, manifests stamped via `scripts/stamp-versions.sh`, CHANGELOG ledger row, RELEASE.md, `PACKAGE-SYSTEM.md §6` history row updated). Tag `3.56.1` pushed (after transient 403 retries; verified on remote). Release workflow fired at 09:34:42Z; all 14 release assets published by 09:44:09Z. |
| 11 | Observe | post-release | Runtime/design alignment verified at code + test + doctrine level (see §5). GitHub release artifacts present and SHA-256-verifiable. End-to-end `cn --version` on a target host deferred to next session / operator. |
| 12 | Assess | post-release | this file |
| 12a | Skill patch | cdd | **α proposed:** one-line row 7a peer-enumeration addendum (see §3 and α close-out). **β concurs.** Ship decision deferred to γ triage per CDD §1.4 γ step 7. |
| 13 | Close | post-release | β close-out committed to `.cdd/releases/3.56.1/beta/253.md` (`cef1718`); α close-out previously committed by α to `.cdd/releases/3.56.1/alpha/253.md` (`16bdfe9`). Both close-outs committed directly to main per §1.4 step 11 (surviving squash-merge). |

### 6a. Invariants Check

| Constraint | Touched? | Status (preserved / tightened / revised / N/A) |
|---|---|---|
| T-002 (kernel minimal, dispatch-only in cli/) | no | N/A |
| T-003 (Go sole language in kernel) | no | N/A |
| **T-005 (content classes finite)** | **yes — single authority established** | **preserved-tightened** — the set is still 8, still finite, still canonical; now lives in one place (`pkg.ContentClasses`) with one authority (filesystem presence) instead of two diverging lists |
| INV-001 (one package substrate) | no | N/A |
| INV-003 (commands/skills/orchestrators distinct) | no | N/A |
| INV-004 (kernel owns precedence) | no | N/A |
| T-004 (source/artifact/installed explicit) | yes (incidentally) | preserved — the new predicate works identically against `src/packages/<n>/` (source) and `.cn/vendor/packages/<n>/` (installed), with no shared state between the two invocations |

### 7. Next Move

**Next MCA:** #250 — `cn deps lock` vendors every package in index, ignores deps.json pins

**Owner:** α (via γ dispatch)

**Branch:** pending (canonical form: `alpha/250-deps-lock-honors-pins` per CDD §4.2, `<agent>/<issue>-<scope>`)

**First AC:** AC1 — `cn deps lock` produces a lockfile that contains exactly the packages in `.cn/deps.json` plus declared transitive dependencies (today: only `deps.json`'s packages, since there is no `dependencies` field yet).

**MCI frozen until shipped?** **Yes** — 10 growing-lag issues; MCI freeze from 3.56.0 continues. The next two cycles should also pick growing-lag bugs (#230 `cn deps restore` version upgrade skip, #235 `cn build --check` validates entrypoints) rather than opening new design fronts.

**Rationale:** #250 is the next-smallest, highest-leverage bug with a clear fix path:
- **Smallest:** The reproducer is concrete (5 lines of shell), the ACs are mechanical, and the fix lives in `cn deps lock` (single command, narrow surface).
- **Highest-leverage:** It breaks the contract of `.cn/deps.json` — the explicit source of truth for hub package pins is being ignored. Every hub that runs `cn deps lock` today gets a polluted lockfile. Fixing this restores the pin → lockfile → restore chain to its intended authority.
- **Unblocks signal:** Tier 2 CI currently over-installs 5 packages when the hub pins 3; the over-install has been masking the issue across multiple cycles (called out in 3.55.0 PR #248 β review and in 3.56.1 PR #258 known debt). Closing #250 clears that noise from future test-hub setups and makes the lockfile faithful again.

**Closure evidence (CDD §10):**

- **Immediate outputs executed:**
  - [x] Release commit `7cda5b2` on `origin/main` (VERSION 3.56.1, manifests stamped, CHANGELOG ledger row, RELEASE.md, §6 history row updated)
  - [x] Tag `3.56.1` on `origin` (verified after transient 403 retries — see §3 and §9.1 friction log)
  - [x] GitHub release `3.56.1` published via workflow (14 assets; release body = committed `RELEASE.md`; 09:34:42Z → 09:44:09Z)
  - [x] α close-out committed at `.cdd/releases/3.56.1/alpha/253.md` by α (`16bdfe9`)
  - [x] β close-out committed at `.cdd/releases/3.56.1/beta/253.md` by β (`cef1718`) — main-direct, survives squash-merge per §1.4 step 11
  - [x] This post-release assessment committed to `docs/gamma/cdd/3.56.1/POST-RELEASE-ASSESSMENT.md` (`5436dbb`, amended by this correction commit)
  - [ ] **Pending γ triage:** α's row 7a peer-enumeration addendum (CDD.md §5.3) — MCA candidate for §9.1 closure; β concurs, ship decision is γ's

- **Deferred outputs committed:**
  - **Issue:** #250 — `cn deps lock` vendors every package in index, ignores deps.json pins (already filed, labels: bug)
  - **Owner:** α (next cycle)
  - **Branch:** pending
  - **First AC:** AC1 (lockfile contains only `deps.json` packages + declared transitive deps)
  - **Freeze state:** MCI frozen until #250 ships

**Immediate fixes (executed in this session):**

- Release commit `7cda5b2` + remote tag `3.56.1` (pushed and verified) + this assessment.
- `PACKAGE-SYSTEM.md §6` history row: `#253` placeholder replaced with `v3.56.1` (β step 10 — release/SKILL.md §2.10 CDD Trace update against the canonical surface).
- Post-release correction commit: this edit pass revises §3, §4a, §5, §6, §7, §9.1 after discovering (a) tag push actually succeeded, release shipped; (b) α's close-out proposed a specific MCA that β should triage-concur on. Assessment prior to this correction had the tag-push state wrong and the §9.1 trigger set wrong; keeping a single accurate copy in the version directory is the right move per §5.6 (pre-freeze).
- Skill patch pending γ triage (see §3 disposition).

### 8. Hub Memory

- **Daily reflection:** **deferred** — β does not hold write access to the `cn-beta` hub reflection surface from this session context. The reflection content (cycle state, scoring, MCI status, next move) is nonetheless captured verbatim in this assessment (§1, §2, §4a, §7) so the state is recoverable by any next session that reads `docs/gamma/cdd/3.56.1/POST-RELEASE-ASSESSMENT.md`. This is a known compaction gap pattern (3.41.0 precedent), mitigated here by in-repo artifact carrying the same content.
- **Adhoc thread(s) updated:** **deferred, with named thread.** The relevant ongoing thread is **β closure-loop recovery** — the 3.55.0/3.56.0 pattern of β not producing post-release assessments. 3.56.1 is the first cycle where β produced the assessment and β close-out in the same session that reviewed and released, breaking the pattern. When hub-memory write is possible, update `cn-beta/threads/adhoc/beta-closure-loop.md` (or equivalent) with: "3.56.1 closed the loop: review → narrow → merge → release → assess → β close-out all in one β session. No γ escalation. No artifact destruction. The pattern that required 3.56.0 skill patch (§1.4 step 11 close-out-to-main) held — β committed assessment and close-out directly to main, not to any PR branch."

**Why deferred is acceptable this cycle:** The post-release skill requires hub memory writes before closure (§7), but the blocker here is write-access-to-hub-from-session-context, not process omission. The content is not lost — it's duplicated into the in-repo assessment artifact. When a β session with hub write access runs next, it can mirror this state forward in ~2 minutes of thread writes.

## Cycle Iteration

### Triggers fired

- [ ] review rounds > 2 (actual: **2** — at target, not over)
- [ ] mechanical ratio > 20% (actual: **100% (1/1)** — over ratio but total findings < 10, so per post-release §5.5 this is noise, not a filable trigger)
- [ ] avoidable tooling/environmental failure (initial read **yes**, corrected to **no** — tag push returned 403 on first attempt + retries, but later retries landed the tag on the remote and the release workflow fired end-to-end; process friction was present but the cycle did not actually suffer a tooling failure)
- [x] **loaded skill failed to prevent a finding it covers** (actual: **yes** — CDD §5.3 row 7a schema/shape audit was loaded and run at pre-review; the check passed but F1 landed in review anyway because the row 7a scope did not explicitly cover peer-enumeration pairs (table column ↔ prose bullet). α's close-out names this precisely.)

### Friction log

**What went wrong in the cycle itself (process, not code):**

1. **F1 reached review via an underspecified row 7a audit scope.** α's §5.3 row 7a schema/shape audit ran at pre-review and passed — (a) new canonical form (`katas` row in §1.1) present; (b) superseded forms (`pkgbuild.ContentClasses`, `FullPackageManifest.ContentClasses()`, `SkillsJSON`) removed; (c) grep audit for stale references across `src/go` clean. But §1.2's prose enumeration of directory-tree-copy users (`Used by skills, extensions, commands, and orchestrators`) is a restatement of §1.1's copy-mode column — and adding a row to §1.1 with copy mode = "directory trees" creates a sibling obligation on §1.2 that the row 7a audit did not surface. β caught it via review skill §2.2.8 (authority-surface conflict) in round 1; α fixed in 1 line in `507e1e8`; round 2 narrowed cleanly and merged.

2. **Tag-push output was misleading.** `git push origin 3.56.1` returned `HTTP 403 curl 22` on first attempt plus 4 retry attempts; later retry output `Everything up-to-date` mixed with the 403 codes. Assessment §5, §7, and §9.1 were initially drafted on the (incorrect) assumption that the tag had not landed. Post-commit verification via `git ls-remote --tags origin 3.56.1` and `mcp__github__get_release_by_tag` showed the tag *did* reach the remote and the release workflow *did* fire. Cost: ~3 minutes of correction edits in this assessment. Pattern worth recording: **transient `403` followed by `Everything up-to-date` is not evidence of push failure; verify remote state independently before drafting process-failure narratives.**

3. **Operator-main had diverged from origin-main at session start.** `git checkout main` failed because the local `main` branch was ~5 commits ahead of `origin/main` with stale skill-authoring commits from a prior session (`d1badee`, `38dfb53`, `cfb1937`, `8b04e30`, `d3b861e`). These were unrelated to #253. Recovery: preserved old main as `preserve-old-main-drift` branch, then `git reset --hard origin/main` to resync. Cost: ~1 minute and one "worth preserving?" judgment call. Not a cycle-level issue — a per-session hygiene event.

### Root cause

**Primary:** **skill gap** — CDD §5.3 row 7a schema/shape audit scope does not explicitly cover peer-enumeration pairs (a table column in one section of a doc restated as a prose enumeration in a sibling section of the same doc). The audit was loaded, run, and missed. This is not an application gap (α did run the check thoroughly); it is a scope gap in the spec itself.

**Secondary:** environmental — misleading tag-push output and per-session stale-local-main. Neither is CDD-evolvable. Both are cycle-observation patterns worth recording for future-β continuity.

### Skill impact

**Which active skill should have prevented the friction?**

- **CDD §5.3 row 7a pre-review schema/shape audit:** active, loaded, run — and the right skill for this failure class. The check ran to completion and reported clean. F1 landed in review despite the check passing because the scope does not name peer-enumeration pairs within the same doc. **This is a genuine skill gap.**

- **α close-out proposes the patch:**

  > *Row 7a addendum:* When the change updates a table column, the audit must include every subsection within the same document that enumerates the same column in prose. Mechanical form: `grep -n "<column-value-1>.*<column-value-2>" <file>` for each value-pair present in the table, to surface prose enumerations that drift from the table.

  Narrow, one-line, grep-checkable, addresses the exact failure class. β concurs.

### MCA

**MCA candidate: row 7a peer-enumeration addendum.**

- **Scope:** one-line addendum to `src/packages/cnos.cdd/skills/cdd/CDD.md` §5.3 row 7a (audit scope extension).
- **Mechanism:** mechanical grep-check per table-column value-pair, so it is automatable and specific (not a vague "re-read siblings" handwave).
- **Expected effect:** mechanically eliminates the F1 failure class. Next cycle that edits a table column in any doc will grep-check sibling prose enumerations before review.
- **Disposition:** **pending γ triage.** β concurs with the scope, the mechanism, and the ship case. Per CDD §1.4 γ step 7, γ reviews close-outs and decides CAP disposition. This cycle's immediate outputs list flags the patch as pending γ decision.

Per §9.1: "'Won't repeat' without a mechanism is not an MCA." This proposal **has** a mechanism (the grep form), so it qualifies as an MCA, not a "won't repeat" note. If γ ships it this cycle, the §9.1 closure rule is satisfied with a concrete system change; if γ defers, the candidate is carried forward.

### Cycle level

**L5** (L6 cap — doc-internal coherence drift reached review).

**Justification:** Code was locally correct pre-push (compile, vet, tests, `cn build --check` all green). L5 is earned cleanly on the code side. But the touched doc surface had an internal coherence gap — §1.1 declared `katas` as directory-tree copy mode; §1.2's prose enumeration of directory-tree-copy users did not include `katas`. Per §9.1 L6 definition: *"If cross-surface drift (package sync, authority-sync, doc/code mismatch, test coverage gaps) reached review, L6 was not met."* Doc-internal coherence drift is cross-surface drift within a single canonical doc. It reached review. Cycle caps at L5.

- **L5 (local correctness):** met cleanly.
- **L6 (system-safe execution):** **not met** — intra-doc coherence drift reached review (F1). Cycle caps here.
- **L7 (system-shaping leverage):** not earned at the cycle level, but the *diff shape* is L7 (shared canonical list + shared predicate eliminates a class of future content-class drift). Cycle level tracks *process*, not diff shape; lowest miss wins. If γ ships α's row 7a addendum this cycle, the **next** cycle can potentially earn L7 at the cycle level because the failure class will be structurally prevented rather than only caught.

**Concurrence with α:** α's close-out scores this cycle at L5 for the same reason. β concurs.

**Recorded in CHANGELOG TSC table:** `L5` for the cycle-process column; `L6` for the release-level column (the diff is L6-coherent: all shipped surfaces agree end-to-end). Using suffix form `L6 (cycle: L5)` to record both.
