# β close-out — cycle/406 (Sub 1 of cnos#403)

**Reviewer:** β-collapsed-on-δ (per δ contract; γ+α+β collapsed on δ for skill/docs-class cycle).
**Verdict:** R1 APPROVED.
**Rounds:** 1 (no fix-rounds).
**Binding findings:** 0.
**Non-blocking observations:** 6 (recorded in `beta-review.md`).

## Review scope

α delivered five new files under `src/packages/cnos.cds/` (D1 package skeleton + D2 extraction map) per the #406-pinned implementation contract. β-collapsed-on-δ review covered:

- AC1–AC7 mechanical oracle checks (file existence, line counts, frontmatter parse, manifest shape, `cn build --check` discovery, row count, destination resolution, sub-assignment, `git diff` hard rule).
- β-rigor on AC4 (cdr-loader-pattern structural match), AC5 (row count + destination resolution + coverage verification §13), AC6 (cdd-untouched hard rule).
- Surface containment per δ contract (all five new files under `src/packages/cnos.cds/`; zero files touched outside this directory tree except cycle artifacts).
- Implementation-contract conformance per #393 Rule 7 (axis-by-axis check in self-coherence.md; β re-verified).

## Verdict

**R1 APPROVED — no fix-round required.**

All seven ACs PASS:

- **AC1** — cn.package.json (140 B) + README.md (64 lines) + skills/cds/SKILL.md (121 lines, valid frontmatter w/ 6 required fields) + docs/extraction-map.md (275 lines) all exist at canonical paths.
- **AC2** — `go run ./src/go/cmd/cn build --check` reports `cnos.cds: valid`; zero diff in `src/go/`; discovery is filesystem-presence-based and `skills/` content-class directory present.
- **AC3** — README declares CDS as software-development realization of CCNF in line 3; cites kernel docs (CDD.md, COHERENCE-CELL.md, COHERENCE-CELL-NORMAL-FORM.md) as pointer-only; cites cnos.cdr as sibling research realization; cites #388 architecture inheritance; cites #403 tracker.
- **AC4** — skills/cds/SKILL.md mirrors cnos.cdr/skills/cdr/SKILL.md structural shape (frontmatter, Load order, Rule, Role overlays, Cross-protocol relationship, Conflict rule); `calls:` lists CDS.md + 5 role overlays as advisory targets per cdr-Sub-1 precedent; two doctrine-coherence improvements beyond cdr's shape documented (v0.1 caveat section; kernel/realization-conflict rule).
- **AC5** — extraction-map.md has 89 |-prefixed lines (>> 12-row floor) across 12 surface-group tables; all 10 #403-named surface groups have dedicated tables; all 14 CDD.md "pending cds extraction" markers covered (10 in dedicated tables + 4 folded with explicit cross-reference in §13 coverage-verification table); spot-read of 8 sampled rows confirms all destinations resolve under cnos.cds/ and all sub assignments name Sub 3, 4, or 5.
- **AC6** — `git diff origin/main..HEAD -- src/packages/cnos.cdd/` returns 0 lines (hard rule satisfied); CDS.md does not exist; skills/cds/ contains only SKILL.md and .gitkeep (no role-overlay subdirectories).
- **AC7** — cdr/SKILL.md's forward-reference to CDS now resolves to an existing peer package; the reciprocating "X is not Y-with-different-words" cross-reference loop closes; no edits to cdr.

## β observations (non-blocking)

1. **`## v0.1 caveat` section in cds/SKILL.md.** Necessary documentation of the Sub-1-without-Sub-2 status (cdr Sub 1 shipped both loader and CDR.md; cds Sub 1 explicitly defers CDS.md to Sub 2 per #406 D1). Reads as "under-promising and documenting", not over-promising. Acceptable.
2. **Additional Conflict rule (kernel/realization conflict).** "If CDS.md and cnos.cdd disagree on kernel grammar, cnos.cdd governs." Makes implicit kernel/realization hierarchy explicit. Doctrine-coherence improvement; consistent with the Cross-protocol relationship section. Acceptable.
3. **`delta/` role-overlay naming (vs cdr's legacy `operator/`).** cdr explicitly notes its `operator/` naming is a legacy workaround mirroring `cnos.cdd/skills/cdd/operator/SKILL.md`. cds ships the canonical role-letter naming directly per the cycle-394+ trend. Acceptable; arguably an improvement.
4. **§14 open-questions in extraction-map.md.** Records 5 migration-coordination questions (`.cdd/`→`.cds/` rename; cross-repo/harness/operator SKILL location; release-effector location) that Subs 3–5 will face but do not invalidate the per-row destinations. Saves the next cycle's δ from rediscovering them. Acceptable; arguably exceeds AC5 minimum.
5. **§13 coverage-verification table in extraction-map.md.** Not required by AC5 wording. Makes Sub 6's marker-sweep mechanical (CDD.md marker → §13 lookup → destination table → verify migrated → remove). Sub-6-enabling. Acceptable; arguably should be a #406-AC clarification for future bootstrap cycles.
6. **4 of 14 CDD.md markers folded into related tables.** Inputs into §1, Roles into §2, Coordination surfaces as own §3 (not folded), Large-file into §12. The folding is editorially defensible; §13 makes it explicit. β verified by spot-reading the folding decisions.

No binding findings. No fix-round. β-collapse-on-δ review complete.

## Trigger assessment (per gamma/SKILL.md §2.8 table)

| Trigger | Fired? | β note |
|---|---|---|
| Review churn (rounds > 2) | **No** | R1 APPROVED. |
| Mechanical overload (>20% AND findings ≥10) | **No** | 0 binding findings. |
| Avoidable tooling / environment failure | **No** | `go run ./src/go/cmd/cn build --check` ran cleanly. |
| CI red on merge commit | **N/A** | Pre-merge (operator authority). |
| Loaded skill failed to prevent a finding | **No** | No findings. |

No §9.1 triggers fired.

## Disposition

The cycle is ready for γ close-out, cdd-iteration courtesy stub, INDEX.md row append, push to origin, and operator-facing merge instruction. β does not merge; per dispatch, operator merges with `Closes #406` keyword.
