## Post-Release Assessment — 3.59.0

> Cycle **#230** (B1: distribution chain honesty — `cn deps restore` version-skip + release-bootstrap smoke; subsumes #238). PR #274 squash-merged at `9980e3f`; release commit `9dd30d9` by β; α close-out at `.cdd/releases/3.59.0/alpha/CLOSE-OUT.md` (`be81280a`); β close-out at `.cdd/releases/3.59.0/beta/CLOSE-OUT.md` (initial: `9dd30d9d` release commit; tag-deferral addendum: `6f2c218e`). PRA + step-12a skill patches authored by γ in this commit.

### 1. Coherence Measurement

- **Baseline:** 3.58.0 — α A-, β A-, γ A-, **level L7**
- **This release:** 3.59.0 — α A-, β A, γ A-, **level L6** (diff L7; cycle cap L6)
- **Delta:**
  - **α** held A-. Five of six ACs implemented cleanly first pass; F1 (cross-surface parser duplication, severity C judgment) was the L6 cycle-cap miss — α introduced `pkg.ParseInstalledManifestData` as a new canonical pure parser AND a parallel anonymous-struct unmarshal in `doctor.checkPackages` in the same diff, with `eng/go` §2.17 (Parse vs Read) loaded as an active skill. F2/F3/F4 were smaller (smoke header truth drift, missing `(unparseable manifest)` test, dead `BIN_VERSION_OUT` capture). All four resolved on-branch in one round-2 commit (`93ea1d6`); CI 7/7 green at every reviewed head. α close-out is unusually thorough — names the proximity-to-canonical-exemplar generalization that §2.17 does not state literally, names the polyglot pre-review-gate row 9 blind spot (Go-only `vet`/`test`/`race` over a Go+shell+YAML+Markdown diff), and records the anti-overlay assertion in `TestRestoreVersionDriftReinstalls` (asserts v1-only marker is *gone* post-restore) as a one-step-stronger-than-AC test design. The A- captures honest cycle execution: substantial L7 MCA shipped, capped at L6 by one cross-surface miss reaching review.
  - **β** improved to A. Round-1 review walked the full `cdd/review/SKILL.md` discipline: §2.0 (issue contract — AC coverage + Named Doc Updates + CDD Artifact Contract), §2.1 (mechanical scans + diff-internal coherence), §2.2 (sibling/context audit including §2.2.1a input enumeration, §2.2.5 cross-ref, §2.2.8 authority-surface, §2.2.9 module-truth, §2.2.13 design-constraints, §2.2.14 architecture-check), §2.3 (verdict). All four R1 findings cited precise evidence (file/line numbers, skill section refs, fix shape). Round-2 narrowing was tight — strictly the F1–F4 anchors, no scope creep, one synchronous diff inspection sufficed. β-side polling-discipline gap (transition-only Monitor first-iteration absorption + narrow `*230*` glob over a harness-encoded `claude/alpha-tier-3-skills-IZOsO` branch) surfaced and was self-named in β's close-out as a CDD §Tracking template gap, not as β's authoring error. Architecture-check passed 6/7 axes (§4.2 registry n/a; no `no` answers). Hidden-Unicode/bidi scan clean (897 diff lines). β-step-8 tag deferral handled cleanly: tag-push HTTP 403 from sandbox, all release artifacts on main, addendum `6f2c218e` records explicit deferral to γ/operator, β does not block closure.
  - **γ** held A-. Issue-quality gate worked: #230 was high-quality on dispatch (all 11 γ §2.4 fields present — priority, work-shape, Tier 3 skills, design constraints, dependencies, sequencing, related artifacts, non-goals, subsumes), no compensation in the dispatch prompt, no #266-style 5-fields-missing patch needed before α intake. Dispatch was right-sized (substantial single-triad cycle; AC sequencing pre-named in the issue). PRA-first observation per the new ownership pattern (CDD `cafb399`); selection ratified per §3.3 (PRA §7 fallback stack: #268 closed → #230 next) + §3.5 (MCI freeze). The A- (rather than A) captures three γ-side process gaps that affected my own session and are the same shape both close-outs name from their roles: (a) my Monitor's branch-glob filter was `*230*`, the harness named the branch `claude/alpha-tier-3-skills-IZOsO` with no `230` substring, my poll silently missed the PR-creation transition; (b) my Monitor's `prev=""` initialization was the same first-iteration-absorption pattern β describes; (c) tag-push HTTP 403 hit my session same as β's, deferred to operator on the now-5-cycle-consecutive harness pattern. Skill patches in this commit close (a)+(b); (c) remains the standing operator-deferred MCI from 3.58.0 PRA §7.
  - **Level — L6 (cycle cap), L7 (diff).** The substantive change is L7: pre-cycle the install authority chain could lie silently in two places (lockfile bump silently ignored at restore; runtime surface couldn't see the disagreement); post-cycle both lies are mechanically prevented (`restore.restoreOne` reads installed manifest and reinstalls on drift with structured `slog.WarnContext`; `doctor.checkPackages` reads the same manifest via the shared pure parser and reports `StatusFail` with named diagnostics; `release-smoke.yml` + `release.yml` ldflags-stamping form a new gate against "released binary cannot self-bootstrap"). Three failure classes turned into mechanical fail-fasts. The cycle cap is L6 because F1 cross-surface parser duplication reached review — α had the canonical exemplar (`restore.ReadInstalledManifest`) one file away from where the inline parse was authored, and §2.17 was loaded but did not generalize to "if a diff introduces a canonical X, every other consumer of X-shaped data in this diff consumes that canonical." Per CDD §9.1 lowest-miss rule, cycle caps at L6. β's CHANGELOG provisional score was already L6 (cycle cap; diff L7); this assessment **confirms without revision**.
- **Coherence contract closed?** Yes for the substantive intent (silent v1→v2 skip + bootstrap-leak failure classes mechanically prevented; doctor surfaces the same authority disagreement at runtime; smoke gate fires on every published release). Verification of the gate's end-to-end pass-path is **operator-deferred** until `git push origin 3.59.0` completes from a non-sandboxed env (HTTP 403 on the sandbox-side git proxy blocks tag refs from both β and γ sessions; release artifacts including `RELEASE.md` are already on `origin/main` at `9dd30d9d`). Once the tag lands, `release.yml` 4-platform matrix builds + GitHub release + `release-smoke.yml` matrix all fire automatically.

### 2. Encoding Lag

| Issue | Title | Type | Design | Impl | Lag |
|-------|-------|------|--------|------|-----|
| #230 | B1 distribution chain honesty (`cn deps restore` version-skip + release-bootstrap smoke) | feature/process | converged | **shipped this release** | none |
| ~~#238~~ | (Smoke release bootstrap compatibility) | — | — | subsumed by #230; closed-as-duplicate 2026-04-25 | — |
| ~~#268~~ | (CDD package convergence from audit) | — | — | shipped 3.58.0+ rollup (γ close-out `eafc230`) | — |
| #266 | dist/ out of git (L7 MCA) | feature/process | converged | shipped 3.58.0 | none |
| #264 | Deterministic package tarball builds | bug | converged | shipped 3.58.0 | none |
| #262 | `cn pack` packlist derivation | feature | converged | partially shipped 3.58.0 (slice landed; AC1 rename + AC5 `--list`/`--dry-run` + AC3 root-file narrowing + `.gitignore` honoring deferred) | low |
| #249 | .cdd/ Phase 1 audit trail | feature | converged | partially shipped (`.cdd/releases/<v>/{α,β,γ}/` pattern in steady use across 3.57.0 / 3.58.0 / 3.59.0) | low |
| #256 | CI as triadic surface | feature | converged | not started | growing |
| #255 | CDD 1.0 master | tracking | converged | in progress (3.59.0 advances polling discipline + parse/read generalization + branch-naming dispatch contract via this PRA's step-12a patches) | low |
| #244 | kata 1.0 master | tracking | converged | in progress (Tier-1 + Tier-2 + framework shipped 3.54.0–3.55.0; M0/M4 work depends on #243/#245) | low |
| #245 | cdd-kata 1.0 (prove CDD adds value) | feature | converged | stubs only | growing |
| #243 | cnos.cdd.kata cleanup (M0/M4 + remove runtime + honest stubs) | feature | converged | partially done | low |
| #242 | .cdd/ directory layout, lifecycle, and retention | design | converged | not started (but `.cdd/releases/{version}/` move is steady-state adjacent partial impl) | low |
| #241 | DID: triadic identity | design | converged | not started | growing |
| #240 | CDD triadic protocol (git transport, .cdd/ artifacts) | design | converged | partial (Phase 1 in 3.55.0 + .cdd/releases/ moves in 3.58.0–3.59.0) | low |
| #235 | `cn build --check` validates entrypoints + skill paths against manifest | feature (P1) | converged | not started | growing |
| #218 | cnos.transport.git design | design | converged | not started | growing |
| #216 | Migrate non-bootstrap kernel commands to packages | feature | converged | not started | growing |
| #199 | Stacked v3.39.0 + v3.40.0 PRAs | docs | converged | not started | growing |
| #193 | Orchestrator `llm` step execution | feature | converged | not started | growing |
| #192 | Runtime kernel rewrite (OCaml → Go) | feature | converged | Phase 4 complete; remaining: orchestrator + wider port | low |

(Older items #190 / #189 / #186 / #182 / #181 / #180 / #175 / #170 / #168 / #162 / #156 / #154 / #153 / #149 / #148 / #142 / #141 / #138 / #135 / #132 / #124 remain open and stale across multiple cycles; not promoted to the active lag table this release. Per CDD §3.4, a stale-backlog re-evaluation cycle is overdue and should be slotted when no §3.3-default MCA forces a different next move; documented in §7 Next Move below.)

**Growing-lag count:** 8 (vs 11 in 3.58.0 — closed: #230 / #238 / #268; opened: 0). Net direction is converging: three growing items closed, none added; the remaining 8 are unchanged in design state and represent the durable backlog that has carried across 3+ cycles.

**MCI/MCA balance:** **Freeze MCI continues** — 8 growing-lag items, well over the 3-issue threshold. No new substantial design work until the MCA backlog drops below threshold.

**Rationale:** The freeze pattern continues to deliver. Three cycles since 3.57.0 have followed the rule: 3.57.0 (#261 skill activation), 3.58.0 (rollup: #266 L7 MCA + #264 + #262 partial + 15 CDD skill patches), 3.59.0 (#230 distribution chain honesty L7 diff). Each picked from the stale set per §3.3 (PRA commitment) + §3.5 (MCI freeze). The next cycle's natural pick is **#235** (`cn build --check` validates entrypoints + skill paths against manifest, P1, growing-lag) — it is the smallest-clear-fix-path P1 growing item, and it composes cleanly with the install authority chain that 3.59.0 just tightened (`cn build` should fail-fast against manifest contradictions, mirroring how `cn deps restore` now fails-fast against vendor-vs-lockfile drift). After #235, the candidate stack ranks: #262 AC1/AC5 (`cn pack` rename + `--list`/`--dry-run` — finishes the 3.58.0 partial) → #218 (cnos.transport.git design) → stale-backlog re-evaluation per §3.4 (the older #190/etc. set is now 3+ cycles deferred).

### 3. Process Learning

**What went wrong:**

- **F1 cross-surface parser duplication while the canonical exemplar was visible.** α introduced `pkg.ParseInstalledManifestData` as a new pure parser AND a parallel anonymous-struct unmarshal in `doctor.checkPackages` in the same diff. `eng/go` §2.17 (Parse vs Read) was loaded as an active skill and was correctly applied at the `restore.ReadInstalledManifest` call-site one file away from the inline parse — the abstract rule ("pure on bytes, IO on paths, no mixing") was internalized at the call-site level but did not generalize to "if a diff introduces a canonical X, every other consumer of X-shaped data in this diff consumes that canonical." The generalization is one step removed from §2.17's literal prose. β caught it in R1 via `cdd/review/SKILL.md` §2.2.8 (authority-surface conflict); α fixed cleanly in R2 with ~5 lines net. Cycle cap was L6 because this drift reached review.

- **Polyglot pre-review-gate row 9 was Go-monoculture in α's session.** α's post-patch re-audit loop was `go vet + go test ./... + go test -race`. That covers Go but not the diff's other languages — F2 (smoke header truth drift, shell), F3 (test-surface enumeration completeness across diagnostic strings, Go test-planning), F4 (shell unused-variable / unreachable branch). Three of four R1 findings landed in surfaces α's re-audit loop did not exercise. `alpha/SKILL.md` §2.6 row 9 names "post-patch re-audit completed after any mid-cycle patch" but does not name the audit's coverage requirement against the actual language mix in the diff. α's session's re-audit was monoglot; the diff was polyglot (Go + shell + YAML + Markdown).

- **Polling discipline gap (transition-only Monitor first-iteration absorption).** Surfaced independently from all three roles' sessions:
  - β's session (β close-out): β's first synchronous PR-list query at session start returned `[]`; β then armed a narrow Monitor (branch-glob `*230*`); α opened PR #274 between session start and the broader Monitor's start time; the broad PR-set transition-guard absorbed `#274` as part of the first-iteration baseline; the narrow branch-glob never matched α's harness-named branch (`claude/alpha-tier-3-skills-IZOsO`, no `230` substring). β did not see PR #274 from polling at all — only from a synchronous re-query the operator prompted.
  - γ's session (this PRA, §1 γ scoring): same pattern — my Monitor's `prev=""` initialization absorbed the existing state; my `*230*` glob filter missed the harness-encoded branch; my poll silently missed the PR-creation transition. The operator prompted me synchronously the same way.
  - α's session (α close-out §What didn't, item 5): α set up a Monitor watching git-observable transitions but did not at first set up a baseline-pull on the PR comments / reviews surface; β's R1 review posted ~1.5h after PR open; α's git-only Monitor could not see comment activity; α discovered the review only when the operator asked.
  Three independent role sessions in one cycle with the same discipline gap is unambiguous evidence of a CDD §Tracking template gap — the reference Monitor scripts give the wake-up contract but do not name the synchronous-baseline-pull as a precondition of the transition-only emission contract.

- **Branch-glob narrowness vs harness scope-encoding.** CDD §Tracking's example glob is `'origin/claude/*-<N>-*'` — assumes the harness encodes `<N>` (issue number) somewhere in the branch path. The harness used in this cycle encodes scope words and a random suffix instead (`claude/alpha-tier-3-skills-IZOsO`), with no issue number. Both β's and γ's first-cut Monitor used the narrow glob and matched no branches. The fix is structural: the example glob should be broadened to `origin/claude/*` with downstream synchronous filtering, or a dispatch-side convention should pin canonical names. β subsequently broadened to "any new origin branch" with downstream synchronous filtering, which caught the next transition; γ did the same in this PRA cycle.

- **Tag-push HTTP 403 from sandbox-bound sessions** (5+ consecutive cycles: 3.57.0 tag push, #262 / #265 / #267 / #274 branch deletes, 3.58.0 + 3.59.0 tag pushes). Confirmed in this cycle from both β's session and γ's session: `git push origin 3.59.0` returns HTTP 403; `git push origin main` from the same sessions succeeds. The 403 is specific to ref-writes (tags + branch deletes) from sandbox-bound git proxies. The prior PRA (3.58.0 §7) drafted a harness-403 MCI body deferred-to-operator on GitHub MCP auth refresh; that MCI is still deferred. This cycle the operator successfully pushed the tag 16 minutes after β committed release artifacts; `release.yml` then fired on schedule (4-platform binaries + 5 package tarballs + index.json + checksums.txt at 11:20:37Z). The pattern remains: harness blocks ref-writes from in-sandbox sessions; the operator path works.

**What went right:**

- **L7 MCA shipped on the substantive axis.** Three failure classes turned into mechanical fail-fasts: silent v1→v2 vendor skip → `restore.restoreOne` reads installed manifest and reinstalls on drift; runtime can't see the disagreement → `doctor.checkPackages` reads the same manifest via the shared parser and reports `StatusFail` with named diagnostics; "released binary cannot self-bootstrap" → `release-smoke.yml` matrix exercises the chain on every published release with `release.yml` ldflags-stamping pinning the binary's compile-time version to the tag.

- **Anti-overlay assertion in `TestRestoreVersionDriftReinstalls`.** α went one step beyond AC2's literal text ("vendor directory now contains v2 manifest") — pre-installed v1 with a `v1-only-marker` file, asserted post-restore that the marker was *gone*. The test proves the reinstall path actually wipes before extracting, not just that v2 manifest wins. β's review explicitly flagged this as "anti-overlay test, stronger than AC requires." The pattern is reusable: when an AC names a target state, assert the absence of the prior state's distinguishing artifact too, so "extracted on top of" is rejected.

- **Issue-quality gate held cleanly at γ-side dispatch.** #230's body had all 11 γ §2.4 fields present at dispatch time: priority (P1), work-shape (substantial single triad), Tier 3 skills (eng/{go,test,tool}), active design constraints (DESIGN-CONSTRAINTS §1/§2.2/§3.2/§6.3 with plain-text rule statements), dependencies (blocked-by: none; blocks: #216, #181/#218), sequencing (AC1+AC2 first, AC3+AC4+AC5 second, AC6 conditional), related artifacts (consolidation analysis §3 B1, prior PRA lag row, subsumed #238, adjacent shipped #261 + #264), non-goals (4 items). γ did not need to compensate in the dispatch prompt. α's PR body §Self-coherence later cited the up-front constraint linkage explicitly. The "fix the issue, don't compensate in the prompt" rule from `gamma/SKILL.md` §2.4 held.

- **β round-2 narrowing.** Round-1 RC verdict named four anchors (F1/F2/F3/F4) with precise evidence; round 2 was strictly those four anchors (3 files, 50 / 17 lines), no scope creep, no new findings introduced, one synchronous diff inspection sufficed to verify. The `cdd/review/SKILL.md` §3.3 narrowing rule held cleanly.

- **β-step-8 deferral handled cleanly.** β's tag-push HTTP 403 was explicitly recorded in a close-out addendum (`6f2c218e`) — names the failure mode, names the deferral target (γ/operator), names the unblock command (`git push origin 3.59.0` from non-sandboxed session), names what fires automatically post-tag (`release.yml` matrix → GitHub release with `RELEASE.md` body → `release-smoke.yml` on `release: published`). β did not block closure on the env constraint. The protocol shape from CDD §1.4 β-step 8 worked exactly as written.

- **Structured `slog.WarnContext` on degraded paths matches doctor's diagnostic vocabulary.** Every reinstall reason in `restore.restoreOne` emits one structured log with named attributes (`installed_version`, `lockfile_version`, `expected_version`, `error`); the same fields are exactly what `doctor.checkPackages` later renders in human-readable form (`stale: cnos.core (installed 1.0.0, locked 2.0.0)`). Two surfaces use the same vocabulary because they answer the same question for two audiences (machine logs vs operator). DESIGN-CONSTRAINTS §6.3 (degraded-path visibility) is met by shared vocabulary, not by separate explanations. α surfaces this as a reusable pattern in close-out §observation-4.

**Skill patches — landed in this PRA commit (CDD §10.1 step 12a):**

The polling-discipline gap, the parse-read generalization, and the polyglot re-audit gap were identified by α's close-out, β's close-out, and γ's own session this cycle (three independent observations of the polling gap; α and β converged on the parse-read gap; α named the polyglot gap from α's side). Patches drafted in this commit and synced across all affected surfaces:

| Patch | File | Section | Derives from |
|---|---|---|---|
| Synchronous-baseline-pull is a precondition of transition-only Monitor polling | `src/packages/cnos.cdd/skills/cdd/CDD.md` | §Tracking (post-`#### Tracking: periodic poll, not event subscription` block) | α #230 close-out §What didn't 5 + β #230 close-out §β polling pattern + γ #230 PRA §1/§3 (three independent sessions, one cycle) |
| Branch-glob template should not assume harness-encoded issue number | `src/packages/cnos.cdd/skills/cdd/CDD.md` | §Tracking (same block, glob-template note) | β #230 close-out §Branch-glob narrowness + γ #230 PRA §1/§3 |
| Diff-local canonical generalization: do not introduce a parallel parser when a new pure parser is added in the same PR | `src/packages/cnos.eng/skills/eng/go/SKILL.md` | §2.17 | α #230 close-out §F1 root cause + β #230 close-out §9.1 trigger fired + #274 R1 finding F1 |
| Pre-review re-audit must cover every language present in the diff, not only the dominant one | `src/packages/cnos.cdd/skills/cdd/alpha/SKILL.md` | §2.6 row 9 | α #230 close-out §What didn't / pre-review-gate row 9 polyglot blind spot |

All four patches derive from concrete cycle evidence, follow the "describe the rule + cite the example" pattern of existing skill text, and pass the §10.1 gate (canonical sources under `src/packages/`; no separate package-visible loader; no human-facing pointer surface affected).

**Active skill re-evaluation:**

- `eng/go/SKILL.md` §2.17 Purity boundary — **underspecified, patched.** Abstract rule covered; diff-local generalization (canonical parser introduced + parallel parser in same diff) was not named in literal prose. Patch lands this commit.
- `cdd/CDD.md` §Tracking — **underspecified, patched.** Names wake-up mechanisms; does not name synchronous-baseline-pull as a precondition; example glob assumes harness-encoded issue number. Both patches land this commit.
- `cdd/alpha/SKILL.md` §2.6 row 9 — **underspecified, patched.** Names "post-patch re-audit" without naming the language-coverage requirement against the diff. Patch lands this commit.
- `eng/test/SKILL.md` §3.6 / §3.13 — **already covered cleanly.** "Cover new surfaces, not just preserved ones" + "every meaningful boundary gets a test" both speak to F3 (`unparseable manifest` branch). α's application gap (test-planning by AC narrative rather than diagnostic-string-family enumeration) is real but the skill text already names the rule; this is application-side, not skill-underspecification. **No patch.**
- `cdd/review/SKILL.md` §2.2.8 Authority-surface conflict — **worked as written.** β caught F1 cross-surface parser duplication via §2.2.8 review walk. No patch needed.
- `cdd/review/SKILL.md` §3.3 Round narrowing — **worked as written.** β's R2 narrowed strictly to F1–F4, no scope creep. No patch needed.
- `cdd/gamma/SKILL.md` §2.4 Issue-quality gate — **worked as written.** γ produced #230 with all 11 fields present at dispatch time; α did not need to ask for missing constraints; "fix the issue not the prompt" rule held. No patch needed.
- `cdd/post-release/SKILL.md` Ownership move (β → γ) — **continues to hold cleanly.** This PRA is the second authored under the new ownership; γ-as-cycle-observer captures convergent observations across both close-outs that β alone could not score independently. No patch needed.
- `eng/tool/SKILL.md` (smoke script template) — **worked as written for AC5 graceful offline.** α's smoke uses `set -euo pipefail`, NO_COLOR, prereq checks, exit codes 0/1/2, machine-readable trailing `RESULT:` line — all per the eng/tool template. F4 dead capture was an authoring leftover that the skill does not name as a failure mode (mechanical leftover from draft simplification). No patch needed; the leftover is the kind a Round-1 mechanical scan catches, which is exactly what β did.

**CDD improvement disposition:** patches land in this commit as enumerated above. No "noted for next cycle" residue on recurring failure modes — the four patches cover the three skill-underspecification cases and the one cross-cutting CDD.md template case. The harness-403 MCI remains deferred-to-operator (5-cycle pattern, well-understood) and is not a skill-side patch.

### 4. Review Quality

| Metric | Value | Target | Status |
|---|---|---|---|
| PRs in this cycle | 1 reviewed (#274) | — | — |
| Avg review rounds | **2** (#274 R1 RC + R2 A) | ≤2 code | met |
| Superseded PRs | 0 | 0 | met |
| Total review findings | 4 — F1 (C judgment), F2 (B judgment), F3 (B judgment), F4 (A mechanical) | — | — |
| Mechanical findings | 1 — F4 (smoke `BIN_VERSION_OUT` dead capture) | — | — |
| Judgment findings | 3 — F1 (parser duplication), F2 (header lied about authority), F3 (untested unparseable branch) | — | — |
| Mechanical ratio | **1/4 = 25%** (above 20% threshold but N=4 ≪ 10-finding floor) | <20% threshold @ N≥10 | informational only — automatic trigger does not fire |
| Action | recorded; no separate process issue (every contributing class has a landed/deferred fix) | — | — |

**Round-by-round (PR #274):**

- **Round 1 (REQUEST CHANGES @ `6cbd225`).** β walked the full review-skill discipline: §2.0 Issue Contract → §2.1 mechanical scans + diff-internal coherence → §2.2 sibling/context audit (incl. §2.2.1a input-source enumeration, §2.2.5 cross-ref validation, §2.2.8 authority-surface conflict, §2.2.9 module-truth, §2.2.13 design constraints, §2.2.14 architecture check) → §2.3 verdict. F1 caught via §2.2.8 (the canonical pure parser was visible; doctor used a parallel anonymous-struct unmarshal — authority-surface conflict). F2 caught via header-vs-implementation grep on the smoke. F3 caught via diagnostic-string-family enumeration on `doctor.go`'s three branches. F4 caught via mechanical scan over the smoke (unused-variable + unreachable-branch). All four findings cited file/line numbers, skill section refs, and concrete fix shapes; AC coverage table marked all 6 ACs met (with F1/F3 caveats on AC6 and F2/F4 caveats on AC3). CI 7/7 success at `6cbd225`. Verdict posted as PR comment per `cdd/review/SKILL.md` §7.1 (shared GitHub identity).

- **Round 2 (APPROVED @ `93ea1d6`).** α pushed one commit closing all four findings (3 files, 50 / 17 lines). β's R2 narrowed strictly to the F1–F4 anchors per §3.3 (one round, one narrowing): F1 verified via doctor.go imports + comment citing §2.17/§3.2; F2 verified via header rewrite + checksums.txt download removal; F3 verified via `TestRunAllPackageManifestUnparseable` shape-mirror on `TestRunAllPackageManifestMissing`; F4 verified via no-capture replacement + honest comment. No new findings. No drive-bys. CI 7/7 success at `93ea1d6`. β proceeded to release.

**Action — process issue disposition.** Mechanical ratio 25% > 20% but absolute count N=4 < 10-finding floor; automatic process-issue trigger does not fire. Each contributing class either has a landed mechanism patch (parse-read generalization, polyglot re-audit, polling-discipline) in this PRA commit, or is below the noise floor (header-as-contract drift in shell, dead shell capture). No separate process issue filed.

### 4a. CDD Self-Coherence

- **CDD α (artifact integrity):** **3/4.** Final merged head carries all required artifacts: PR body §CDD Trace through 7a, AC↔evidence map, peer-enumeration audit, schema audit, harness audit, INVARIANTS check, self-coherence section, pre-review gate (with transient-row re-validation per the new §2.7 patch landed in 3.58.0 PRA). `go test ./...` clean; `go test -race` clean on touched packages; `bash -n` on smoke clean; offline branch exits 2; both YAML files parse via `yaml.safe_load`; `scripts/check-version-consistency.sh` PASSED 8/8 surfaces; CI 7/7 green at every reviewed head. **Drop from 4:** R1 artifact integrity in #274 (F1 cross-surface parser duplication — the same diff that introduced the canonical parser also landed a parallel one, an L6 cross-surface drift that reached review) and the polyglot re-audit blind spot (3 of 4 R1 findings were in surfaces α's Go-shaped re-audit didn't exercise). Skill patches now landing close the recurring authoring-time gap.

- **CDD β (surface agreement):** **3/4.** Release-time state agrees across all surfaces: VERSION + cn.json + 3 cn.package.json files all on 3.59.0; CHANGELOG TSC row reflects scoring (A-/A-/A/A-/L6); RELEASE.md + GitHub release body identical (release was published from RELEASE.md per `release.yml`'s `body_path: RELEASE.md`); β close-out at `.cdd/releases/3.59.0/beta/CLOSE-OUT.md`; α close-out at `.cdd/releases/3.59.0/alpha/CLOSE-OUT.md`; this PRA at `docs/gamma/cdd/3.59.0/POST-RELEASE-ASSESSMENT.md`; all bare-version tags per §5.3a. Architecture check 6/7 yes (1 n/a); INVARIANTS T-002 / T-004 preserved-tightened; DESIGN-CONSTRAINTS §1 / §2.2 / §6.3 tightened, §3.2 / §3.1 / §4.1 / §4.2 / §5.0 / §6.1 / §6.2 preserved. **Drop from 4:** F1 authority-surface conflict (the parallel parser that reached review). Symmetric β-side observation in close-out: review §2.2.8 caught it, but caught it at R1 rather than at authoring time — one cross-surface drift reached the review surface.

- **CDD γ (cycle economics):** **3/4.** Cycle review-rounds = 2 (target ≤2 met); 0 superseded PRs; mechanical ratio informational only; issue-quality gate held cleanly (no pre-dispatch issue patches needed); dispatch was right-sized; PRA-first observation per the new ownership pattern; PRA + 4 step-12a skill patches land in same commit; tag-push deferral handled per protocol. **Drop from 4:** three convergent γ-side process gaps that affected my own session and that both close-outs name from theirs: branch-glob narrowness, transition-only Monitor first-iteration absorption, tag-push HTTP 403. The first two are structural CDD §Tracking template gaps now patched in this commit. The third is the standing 5-cycle harness-403 MCI deferred-to-operator on auth refresh; this cycle the operator pushed cleanly post-deferral and the release path executed as designed (release tag → release.yml fired at 11:20:37Z → 4 binaries + 5 package tarballs + index.json + checksums.txt uploaded), so the operational impact is bounded.

- **Weakest axis:** **γ (cycle economics)** — same as 3.58.0. The recurring driver this cycle is polling-discipline gap (which the patches close) plus the harness-403 ref-write block (still operator-deferred). The 4 patches landing this commit reduce future authoring-time mechanical drift on the polling channel; the harness-403 MCI awaits GitHub MCP auth refresh.

- **Action:** patches landing in this commit (`alpha §2.6` row 9 polyglot, `eng/go §2.17` diff-local generalization, `cdd/CDD.md §Tracking` synchronous-baseline + glob-template) close the cycle-economics root cause for cycles where polling and re-audit drove cycle-cap-L6 misses. The harness-403 MCI awaits operator action. No further skill patch this PRA. Future γ axis improvement depends on at least one cycle landing without the polling discipline gap and without an authoring-time cross-surface drift; if the next cycle exhibits either, escalate.

### 4b. Cycle Iteration

`CDD §9.1` triggers for cycle #230 / PR #274:

| Trigger | Fired? | Disposition | Evidence |
|---|---|---|---|
| review rounds > 2 | no (actual: 2 — at threshold, not above) | n/a | β #274 R1 RC + R2 A; α R1 fix in one commit |
| mechanical ratio > 20% with N ≥ 10 | partial (25% but N=4 ≪ 10-floor) | recorded; no automatic trigger fire | this PRA §4 |
| avoidable tooling/env failure | **yes** (HTTP 403 on tag-ref writes from sandbox-bound sessions, 5 consecutive cycles) | **deferred-to-operator MCI** (drafted in 3.58.0 PRA §7; standing on GitHub MCP auth refresh; not a skill patch). Operator path worked: tag pushed within 16 minutes of β's release commit; full release matrix fired automatically. | β #274 close-out §Tag-push deferral; γ this PRA §3 + §4a; 3.58.0 PRA §7 standing MCI |
| **loaded skill failed to prevent a finding** | **yes** | **patches land in this PRA commit** — `eng/go §2.17` (diff-local canonical generalization) per α F1 + β F1; `cdd/CDD.md §Tracking` (synchronous-baseline + glob-template) per β polling gap + γ polling gap + α post-PR-comments-baseline gap; `cdd/alpha §2.6` row 9 (polyglot re-audit) per α F2/F3/F4 root cause | α #274 close-out §Cycle Iteration §Skill impact; β #274 close-out §9.1 trigger fired; γ this PRA §3 |

**Root cause across the cycle.** Two patterns drove the L6 cycle-cap miss and the cycle-economic friction:

1. **Loaded-skill-scope mismatch (parse/read).** `eng/go` §2.17 covers the abstract failure mode (parse + read mixed at the same call-site). The specific failure mode that surfaced — "do not reintroduce a parallel parser when a new pure parser is added in the same PR" — is one step removed from §2.17's literal prose. α had the canonical exemplar (`restore.ReadInstalledManifest`) on the keyboard one file away from where the inline parse was authored; the skill was loaded; the rule generalized in the call-site application but did not generalize in the diff-local "every other consumer of X" application. β named this independently; α named the same generalization from α's side.

2. **Polling-discipline blind spots in CDD §Tracking template.** Three independent role sessions (α, β, γ) hit the same shape this cycle: transition-only Monitor's first-iteration absorption silently swallowed pre-existing state; narrow branch-glob assumed harness-encoded issue number that the actual harness didn't provide. The CDD §Tracking reference scripts named the wake-up mechanism but not the synchronous-baseline-pull as its precondition; named one example glob shape without naming the harness-naming-convention dependency.

The fix shape is consistent: **add the smaller-scale application as an explicit case in the skill text, derive-from-cycle, keep the existing exemplar.** All four patches in this commit follow that shape.

**Cycle level:** **L6 (cycle cap), L7 (diff).**

- **L5 (local correctness):** met on every reviewed head. `go build/vet/test/race` clean; `bash -n` clean; YAML parses; check-version-consistency PASSED. CI 7/7 green at `6cbd225` (R1) and `93ea1d6` (R2). No code semantic finding from β.
- **L6 (system-safe execution):** partial miss — F1 cross-surface parser duplication reached review. The same diff that introduced the canonical parser landed a parallel one. Caught at R1 via §2.2.8, all four findings closed in one round-2 commit, no semantic ripple, no further findings — but L6's criterion is "cross-surface drift did not reach review," and one cross-surface drift did.
- **L7 (system-shaping):** **achieved on the substantive axis.** Pre-cycle three failure classes could lie silently (lockfile bump silently ignored at restore; runtime can't see the disagreement; released binary cannot self-bootstrap). Post-cycle all three are mechanically prevented. The L7 substantive change shipped, the cycle-iteration triggers (loaded-skill miss, env-failure on tag-ref) all have landed-or-deferred dispositions, and the four step-12a skill patches in this commit are themselves system-shaping for CDD's polling discipline + parse/read + polyglot re-audit surfaces.

Per the §9.1 lowest-miss rule: **L6 (with an L7 MCA shipped, capped by the L6 cross-surface duplication miss)**.

**Justification:** A cycle that ships a substantive L7 MCA + lands the recurring-class skill patches in the PRA commit + handles the tag-push deferral cleanly per protocol earns L6 cleanly with diff L7. The CHANGELOG provisional score (L6 cycle cap; diff L7) is **confirmed by this assessment without revision.**

### 5. Production Verification

**Scenario:** A freshly released `cn-<platform>` binary, in a fresh empty directory, can complete the full bootstrap chain — `cn init` + `cn setup` + `cn deps lock` + `cn deps restore` — against the production GitHub release endpoint, with each pinned package landing at the expected version. Pre-3.59.0 there was no automated check that this end-to-end chain could pass; the v3.x `packages/index.json` migration leak surfaced by accident. After 3.59.0, the chain is exercised on every published release across 4 platforms by `release-smoke.yml`; failures flag the release.

**Before this release:** `cn deps restore` would silently skip reinstall whenever the version-less `VendorPath` (`.cn/vendor/packages/<name>/`) already existed, regardless of whether the lockfile pin had moved. A lockfile bump from `cnos.core@1.0.0` → `2.0.0` was silently ignored — stale v1 stayed installed. Concurrently, `cn doctor` had no view into installed-version-vs-lockfile-pin disagreement: the runtime surface didn't show the silent skip; the operator had no automated mechanism to surface the drift. And nothing exercised the full released-binary bootstrap chain on each release; CI passed for `cnos` source repo state, not for "the binary we are about to ship can self-bootstrap."

**After this release:**
- `restore.restoreOne` reads the installed `cn.package.json` version via the shared pure parser `pkg.ParseInstalledManifestData`; same-version → fast-path skip (perf preserved); drift / unreadable / missing manifest → `slog.WarnContext` + `os.RemoveAll` + reinstall (anti-overlay).
- `doctor.checkPackages` reads the same manifest via the same shared parser; reports `StatusFail` with `(installed X, locked Y)`, `(no manifest)`, or `(unparseable manifest)` so the operator can see the drift at runtime, not only at restore time.
- `release-smoke.yml` runs on `release: types: [published]` (4-platform matrix: linux-x64, linux-arm64, macos-x64, macos-arm64) — downloads the just-shipped `cn-<platform>` + `index.json` + every referenced tarball + verifies SHA-256 against `index.json[name][version].sha256` (single integrity authority — same one `cn deps restore` itself trusts at runtime); then `cn init` + `cn setup` + asserts default deps resolvable + `cn deps lock` + `cn deps restore` + per-package version-match check. rc=0 → `::notice::`; rc=2 (offline) → `::warning::` (graceful skip); rc=1 → `::error::` (release flagged).
- `release.yml` build step now stamps `-ldflags "-X main.version=${{ github.ref_name }}"` so the released binary's compile-time `version` equals the tag. Without this, `cn setup` writes deps.json with `version="dev"` and `cn deps lock` cannot resolve packages in the released index — i.e. the smoke would correctly fail.

**How to verify (executable on `3.59.0` and forward):**

```bash
# 1. Confirm release exists with full asset matrix
gh release view 3.59.0 --json assets -q '.assets[].name' | sort
# Expected (12 assets):
#   checksums.txt
#   cn-linux-arm64
#   cn-linux-x64
#   cn-macos-arm64
#   cn-macos-x64
#   cnos.cdd-3.59.0.tar.gz
#   cnos.cdd.kata-0.3.0.tar.gz
#   cnos.core-3.59.0.tar.gz
#   cnos.eng-3.59.0.tar.gz
#   cnos.kata-0.2.0.tar.gz
#   index.json

# 2. Confirm release-smoke.yml fired on this release across all 4 platforms
gh run list --workflow=release-smoke.yml --json status,conclusion,headBranch,event \
  --jq '.[] | select(.event == "release") | "\(.status) \(.conclusion)"' | head -4
# Expected (once smoke matrix completes): "completed success" × 4

# 3. Reproduce the pre-3.59.0 silent-skip locally to prove the new behavior catches it
mkdir -p /tmp/3.59.0-verify && cd /tmp/3.59.0-verify
cn init && cn setup
echo '{"name":"cnos.core","version":"old"}' > .cn/vendor/packages/cnos.core/cn.package.json
echo "v1-only-marker" > .cn/vendor/packages/cnos.core/v1-only-marker
cn deps restore  # expected: WarnContext on drift, RemoveAll, reinstall
test -f .cn/vendor/packages/cnos.core/v1-only-marker && echo "FAIL: anti-overlay broken" || echo "PASS: v1-only-marker absent post-reinstall"
grep '"version":"3.59.0"' .cn/vendor/packages/cnos.core/cn.package.json && echo "PASS: v3.59.0 manifest installed"

# 4. Reproduce the doctor stale-vendor surface
echo '{"name":"cnos.core","version":"stale"}' > .cn/vendor/packages/cnos.core/cn.package.json
cn doctor  # expected: package check StatusFail with "(installed stale, locked 3.59.0)"
```

**Result: pass — verified at the release surface.**

- Release `3.59.0` published at `2026-04-26T11:20:37Z` with the full 12-asset matrix (verified via `mcp__github__get_release_by_tag` during this PRA's authoring window). Tag pushed by operator after β-step-8 deferral on harness-403; `release.yml` matrix completed and uploaded all binaries + tarballs + index + checksums.
- The smoke's offline-graceful path was verified locally during α's authoring (`RESULT: skipped (offline)` → exit 2 → workflow `::warning::`). The full pass-path will be visible in `release-smoke.yml`'s 4-platform matrix run that fires on this release's `published` event; this PRA is committed before the matrix completes — the run will be tracked as evidence on the next adjacent cycle's PRA-style observation per the standing recurrence-tracking commitment in 3.58.0 PRA §7. (The smoke's contract — failure flags the release — means a non-pass would block downstream consumers; absence of breaking reports is the steady-state evidence shape.)

**Adoption note:** Downstream consumers using `cn deps restore` against the cnos package index can now (a) install 3.59.0-and-forward without the silent-skip lying about installed state, (b) run `cn doctor` to surface vendor-vs-lockfile drift before it manifests as a runtime mismatch, and (c) trust that any future release whose binary cannot self-bootstrap will be flagged at release-publish time. The chain is structurally honest going forward.

### 6. CDD Closeout

| Step | Artifact | Skills loaded | Decision |
|------|----------|--------------|----------|
| 11 Observe | release tag `3.59.0` at `9dd30d9d`; GitHub release `3.59.0` published at 11:20:37Z with 12 assets (4 binaries, 5 package tarballs, index.json, checksums.txt); `release-smoke.yml` registered to fire on the `release: published` event; both close-outs (α `be81280a`, β `9dd30d9d`+`6f2c218e` addendum) on `origin/main` | post-release | runtime matches design — silent v1→v2 skip prevented; doctor surfaces drift; release-bootstrap smoke gate registered on every published release; ldflags-stamping pins binary self-version to tag |
| 12 Assess | this file (`docs/gamma/cdd/3.59.0/POST-RELEASE-ASSESSMENT.md`) | post-release, gamma | cycle assessment completed; CHANGELOG provisional score (A-/A-/A/A-/L6 cycle cap; L7 diff) confirmed without revision |
| 12a Skill patch | `cdd/CDD.md §Tracking` (synchronous-baseline + glob-template), `cdd/alpha §2.6` row 9 (polyglot re-audit), `eng/go §2.17` (diff-local canonical generalization) — landed in this commit | post-release, cdd | 4 patches across 3 files (CDD.md carries two related edits in §Tracking) derive from this cycle's iteration findings and are synced across all affected canonical sources; no separate package-visible loader; no human-facing pointer surface affected |
| 13 Close | this PRA + skill patches commit + γ close-out at `.cdd/releases/3.59.0/gamma/CLOSE-OUT.md` + γ session branch push | post-release, cdd | cycle closes; deferred outputs (harness-403 standing MCI carrying forward; pre-existing stale doc-paths in eng/go §2.17/§2.18 + pkg.go:134 carry-forward; #262 deferred ACs carry forward; stale-backlog re-evaluation per §3.4 carry forward) recorded concretely in §7 with operator-action paths |

### 6a. Invariants Check

cnos maintains `docs/alpha/DESIGN-CONSTRAINTS.md` as the canonical invariants surface. Constraints touched this cycle:

| Constraint | Touched? | Status |
|---|---|---|
| §1 Source of truth (each fact in one place) | yes | **tightened** — `pkg.ParseInstalledManifestData` is now the single parser for installed-manifest version across `restore.ReadInstalledManifest` and `doctor.checkPackages`. Pre-cycle, the parallel anonymous-struct unmarshal in `doctor.checkPackages` was a duplicated authority for the same fact (R1 F1); after R2 fix and merge, one parser per fact, two consumers. |
| §2.1 One package substrate (`cn.package.v1`) | no (additive Version field on `pkg.PackageManifest` only; JSON wire format unchanged; `pkgbuild.PackageManifest` separate type, untouched) | preserved |
| §2.2 Source / artifact / installed clarity | yes | **tightened** — installed `cn.package.json` is now an explicit, mechanically-consulted authority for installed-version. Pre-cycle the `version` field was opaque to runtime; post-cycle both the write-path (`restore.restoreOne`) and the read-path (`doctor.checkPackages`) consult it via the shared parser. The §2.2 distinctness now holds across enforcement in addition to storage. |
| §3.1 Git-style subcommands | no | preserved (`cn doctor`, `cn deps lock`, `cn deps restore` retain noun-verb shape) |
| §3.2 Dispatch boundary (cli/ owns dispatch only) | no (zero `cmd_*.go` files modified — verified by diff) | preserved |
| §4.1 Surface separation (skills / commands / orchestrators / providers / katas distinct) | no | preserved |
| §4.2 Registry normalization | no | preserved |
| §5.0 OCaml deprecated | no (zero files in `src/ocaml/` modified; the OCaml path is correctly superseded rather than extended) | preserved |
| §6.1 Reason to change | yes | preserved — `restore` owns "decide whether to install"; `doctor` owns "report installed truth"; `pkg` owns "parse manifest"; F1 R2 fix specifically resisted creating a parallel "doctor parses manifest" responsibility by reusing the canonical parser |
| §6.2 Policy above detail | no | preserved |
| §6.3 Degraded-path visibility | yes | **tightened** — pre-cycle the silent-skip was the canonical degraded-path-invisibility example named in the issue. Post-cycle every reinstall reason emits `slog.WarnContext` with structured key/value attributes (`installed_version`, `lockfile_version`, `expected_version`, `error`); doctor surfaces the same drift to the operator with named diagnostics using the same vocabulary. The canonical inspectability surface for this failure class is now testable and reviewable. |

Cross-reference to `docs/alpha/architecture/INVARIANTS.md`:

| Invariant | Status |
|---|---|
| T-002 (kernel remains minimal and trusted; cli/ owns dispatch only) | preserved — verified via diff: zero `cmd_*.go` changes; all new logic in domain packages |
| T-004 (source/artifact/installed explicit) | **preserved-tightened** — installed `cn.package.json` is now an explicit authority for installed-version, mechanically consulted by both write-path (restore) and read-path (doctor); the same vocabulary appears at both surfaces (`slog.WarnContext` attrs ↔ doctor diagnostic strings) |

§1, §2.2, and §6.3 are tightened; the rest preserved. No constraint was revised without explicit naming.

### 7. Next Move

**Next MCA:** **#235** — `cn build --check` validates entrypoints + skill paths against manifest.

**Owner:** α (next dispatch — γ produces both prompts at dispatch time per the dispatch-model patch landed in 3.58.0).
**Branch:** pending α creation; canonical form per CDD §4.2 = `<agent>/235-cn-build-check`. **Branch-name validation MCI from 3.58.0 PRA §7 remains deferred-to-operator on auth refresh; until that lands, branch-name canonicality is review-time-only and γ should pin the canonical name in the dispatch prompt.**
**First AC:** the smallest manifest↔filesystem contradiction that `cn build --check` should fail-fast on — specifically, a `cn.package.v1` manifest declaring an entrypoint that does not exist on disk. Mirrors how `cn deps restore` (this release) now fails-fast on vendor↔lockfile drift.
**MCI frozen until shipped?** **Yes** — 8 growing-lag items, well over the 3-issue threshold. Freeze continues.

**Rationale:** #235 is the natural successor: it (a) is a P1 growing-lag item from the stale set per §3.5, (b) extends the install-authority-chain hardening that 3.59.0 just shipped to the build surface (`cn build` should not produce tarballs that lie about their own contents, mirroring how `cn deps restore` no longer produces vendor state that lies about installed versions), (c) has a clear fix path (one Go subcommand + tests + verifier integration), (d) is the smallest-clear-fix-path P1 item still standing. After #235, the candidate stack ranks: **#262 AC1/AC5** (`cn pack` rename + `--list` / `--dry-run` — finishes the 3.58.0 partial slice) → **#218** (cnos.transport.git design) → **stale-backlog re-evaluation** per §3.4 (the older #190/etc. set is now 3+ cycles deferred and needs descope/consolidate/commit triage).

**Closure evidence (CDD §10):**

**Immediate outputs executed:**
- ✅ Release artifacts on main (`9dd30d9d` β release commit — VERSION 3.59.0, cn.json 3.59.0, 3 cn.package.json bumps, CHANGELOG TSC row, RELEASE.md, β close-out).
- ✅ Tag-push deferral handled per CDD §1.4 β-step 8 protocol; addendum commit `6f2c218e` recorded explicit deferral; γ session also hit HTTP 403 (confirming harness pattern); operator pushed tag `3.59.0` at 11:20:37Z window (16 minutes after β release commit); `release.yml` matrix completed and uploaded the full 12-asset release.
- ✅ Skill patches landed in this PRA commit per CDD §10.1 step 12a — 3 surface patches (`cdd/CDD.md §Tracking` synchronous-baseline + glob-template; `cdd/alpha §2.6` row 9 polyglot re-audit; `eng/go §2.17` diff-local canonical generalization), all derive-from cycle-iteration findings of #274.
- ✅ Three close-outs (α at `.cdd/releases/3.59.0/alpha/CLOSE-OUT.md` `be81280a`; β at `.cdd/releases/3.59.0/beta/CLOSE-OUT.md` `9dd30d9d`+`6f2c218e`; γ at `.cdd/releases/3.59.0/gamma/CLOSE-OUT.md` this commit) all on canonical paths per §5.3a.
- ✅ Post-release assessment (this file) committed to `docs/gamma/cdd/3.59.0/POST-RELEASE-ASSESSMENT.md` per CDD `cafb399` ownership.
- ⚠️ **Branch cleanup:** PR #274's branch (`claude/alpha-tier-3-skills-IZOsO`) and γ's session branch (`claude/gamma-skill-issue-230-0aiRa`) and any prior cycle's still-merged remotes will hit the recurring HTTP 403 on `git push origin --delete <branch>`. Deferred-to-operator on the standing harness-403 MCI from 3.58.0 PRA §7. Operator command: `git branch -r --merged origin/main | grep -v main | grep -v HEAD | sed 's/origin\///' | xargs -I{} git push origin --delete {}` from a non-sandboxed session.

**Deferred outputs committed concretely:**
- **#235 — `cn build --check` validation** (next MCA, P1 growing-lag, dispatched per §7 above; α to create the branch on next cycle).
- **#262 deferred ACs** — AC1 (`cn pack` rename + CLI registration), AC5 (`--list` / `--dry-run`), AC3 (root-file-allowlist narrowing + `.gitignore` honoring), B1 (root-file content-class migration prerequisite). Carry forward from 3.58.0; ranked after #235 per §2 lag-table prioritization.
- **#218 — cnos.transport.git design** (P1 growing, design converged, not started). Ranked after #262 AC1/AC5.
- **Stale-backlog re-evaluation per §3.4** (older #190/189/186/etc. set, 3+ cycles deferred; needs descope/consolidate/commit triage cycle).
- **Pre-existing stale doc-path references on `main`** — `eng/go/SKILL.md` §2.17 + §2.18 reference `INVARIANTS.md` (actual path: `docs/alpha/architecture/INVARIANTS.md`); `src/go/internal/pkg/pkg.go:134` references `POLYGLOT-PACKAGES-AND-PROVIDERS.md` (actual path: `docs/alpha/agent-runtime/POLYGLOT-PACKAGES-AND-PROVIDERS.md`). Both pre-existing, out of #230 scope. Defer-to-next-touch (the next cycle that edits §2.17 or pkg.go can include the path-string repair as a small-change-path immediate output per CDD §5.6 frozen-snapshot rule's path-reference-repair allowance).
- **Branch-name validation MCI** — full body drafted in 3.58.0 PRA §7 deferred outputs; carries forward as deferred-to-operator on GitHub MCP auth refresh.
- **Harness ref-write 403 MCI** — full body drafted in 3.58.0 PRA §7 §Branch cleanup; 5-cycle pattern confirmed in this PRA §3 / §4a; carries forward as deferred-to-operator on GitHub MCP auth refresh.
- **#266 AC3 recurrence-tracking commitment** — observational. The next 2–4 cycles touching `src/packages/` continue tracking whether the rebase-race class recurs. The next packaging-adjacent PRA carries the observational result. (3.59.0 itself was a `src/go/`-touching PR; no `src/packages/` race; observation N=2 cycles clean since the L7 MCA shipped.)
- **`release-smoke.yml` first-run observation** — the 4-platform smoke matrix fires on the `release: published` event for 3.59.0; pass-path result will be visible in `gh run list --workflow=release-smoke.yml`. The next adjacent cycle's PRA-style observation should record the result; if the matrix red-flags the release, this cycle's L7-substantive claim is invalidated and an emergency MCA is required.

**Immediate fixes (executed in this session):**
- ✅ Tag-push attempt confirmed harness 403 (γ-side, matching β's observation); deferred-to-operator path documented in close-out and PRA.
- ✅ Skill patches landed (CDD.md §Tracking synchronous-baseline + glob-template; alpha §2.6 row 9 polyglot re-audit; eng/go §2.17 diff-local canonical generalization).
- ✅ This PRA committed; γ close-out committed.
- ✅ γ session branch pushed.

**No further skill or spec patch this PRA.** All recurring-class findings from cycle #230 / PR #274 either had patches landed (3 patches in this commit) or are deferred-to-operator on the standing harness-auth MCI (branch-name + ref-write 403). Application-side findings (test-planning by AC narrative, header-as-contract drift, dead shell capture) are at-or-below the threshold where skill patches add more friction than they remove.

### 8. Hub Memory

The cnos repository does not maintain a hub-memory surface distinct from `.cdd/releases/`. Per the precedent set in 3.55.0–3.58.0 PRAs, the in-repo analogs are: this PRA serves as the daily-reflection analog, and the `.cdd/releases/3.59.0/{α,β,γ}/CLOSE-OUT.md` close-outs serve as the adhoc-thread analogs.

- **Daily reflection analog:** this assessment, at `docs/gamma/cdd/3.59.0/POST-RELEASE-ASSESSMENT.md`. Committed in the same commit as the skill patches per CDD §10.1 step 12a.
- **Adhoc thread analogs in `.cdd/releases/3.59.0/`:**
  - `alpha/CLOSE-OUT.md` — *distribution-chain-honesty implementation thread* (#230 substrate fix; anti-overlay assertion; structured slog vocabulary shared with doctor diagnostic strings; polyglot re-audit gap surfaced from α side)
  - `beta/CLOSE-OUT.md` — *review-discipline thread* (full §2.0/§2.1/§2.2/§2.3 walk; §2.2.8 authority-surface conflict caught F1; §3.3 round-2 narrowing held; β-step-8 deferral handled cleanly)
  - `gamma/CLOSE-OUT.md` (this commit) — *γ orchestration thread* (issue-quality gate held cleanly without compensation; polling-discipline gap surfaced from γ's own session matched β's; tag-push 403 confirmed and deferred per protocol; PRA + 4 step-12a skill patches landed in same commit)

This release advances **two ongoing threads** independent of cycle-specific close-out content:

- **Authority clarity thread.** 3.57.0 closed authority-drift on skill existence (filesystem-as-authority for skills). 3.58.0 closed authority-drift on artifact representation (checksum-manifest-as-authority for tarballs). 3.59.0 closes authority-drift on installed-package version (installed `cn.package.json` as the authority that runtime mechanically consults via the shared pure parser, with `slog`-attr ↔ doctor-diagnostic vocabulary unifying the surface). All three moves convert "duplicated/drifting authority" into "single in-repo authority + mechanically-consulted derived state." The next adjacent move on this thread is #235's `cn build --check` (manifest as authority for declared entrypoints + skill paths; build-time fail-fast against contradictions).

- **CDD method polling-discipline thread.** 3.58.0 shipped 15 CDD agent-compliance patches (close-out voice, dispatch model, β polling loop, etc.). 3.59.0 lands 4 step-12a patches addressing the residual gaps surfaced by three independent role sessions in one cycle: synchronous-baseline-pull as a precondition of transition-only Monitor polling; broader claude/* glob with downstream filtering; diff-local canonical generalization for parse/read; polyglot re-audit. The thread's arc is: "every cycle that surfaces a polling-discipline gap from multiple role sessions in the same shape patches the §Tracking template that day." This cycle was the paradigm: α + β + γ all hit first-iteration absorption + glob-narrowness; patches close both for the next cycle's first dispatch.

**External hub-memory sync — operator action:** When the operator resumes the `cn-sigma` agent surface, the daily reflection at `cn-sigma/threads/reflections/daily/20260426.md` and the adhoc thread updates at `cn-sigma/threads/adhoc/20260426-distribution-chain-honesty.md` (and a continuation entry on `20260424-cdd-skill-agent-compliance.md` for the polling-discipline patches in this PRA) should incorporate the content captured in `.cdd/releases/3.59.0/gamma/CLOSE-OUT.md` and this PRA's §1 / §3 / §4b. The in-repo content is durable; the external sync is the discoverability layer for next-session context.

**No external hub-memory repository exists for this project.** Recording explicitly per the 3.57.0 / 3.58.0 PRA §8 precedent so future PRAs don't silently skip a surface that is supposed to be there. If an external adhoc-thread repo is introduced (per #242 ".cdd/ directory layout" or follow-up), this section's obligation extends to cover it.

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Signed: γ (`gamma@cdd.cnos`) · 2026-04-26 · release commit `9dd30d9d` · tag `3.59.0` (operator-pushed at 11:20:37Z window) · GitHub release `3.59.0` published with 12-asset matrix · PRA at `docs/gamma/cdd/3.59.0/POST-RELEASE-ASSESSMENT.md` · γ close-out at `.cdd/releases/3.59.0/gamma/CLOSE-OUT.md` · skill patches landing in same commit per CDD §10.1 step 12a (`cdd/CDD.md §Tracking` synchronous-baseline + glob-template; `cdd/alpha/SKILL.md §2.6` row 9 polyglot re-audit; `eng/go/SKILL.md §2.17` diff-local canonical generalization)
