# α self-coherence — cycle/409 / cnos#409

**Cycle:** cycle/409 — Sub 4 of cnos#403 (B-lite thin extract of §Coordination surfaces + §Artifact contract to CDS.md)
**Branch:** `cycle/409` (head at `7e245f45`, base `5f13f61c` Merge cycle/408)
**Dispatch shape:** γ+α+β collapsed on δ (β-α-collapse-on-δ for skill/docs-class cycles per CDS §Field 6)

## §Gap

CDS.md (post-#408) declared the six-field instantiation contract + §Selection function + §Development lifecycle, but the four coordination sub-surfaces (cycle-state evidence, polling primitives, mid-flight clarification, cross-repo proposals) and the artifact contract (terminology, bootstrap, ordered flow, manifest, location matrix, ownership matrix, trace format, supporting rules, frozen-snapshot rule) still resolved into the cnos.cdd "pending cds extraction" markers as a temporary forwarding. After Sub 3, the §Development lifecycle → §Branch rule sub-section had a live cross-reference to "(§"Coordination surfaces" pending Sub 4; currently sourced from `cnos.cdd/skills/cdd/CDD.md §Tracking` v0.1 overlay)" — the pending citation that this cycle closes. The gap is **CDS.md does not yet host the canonical coordination-surfaces or artifact-contract content** as required by extraction-map rows 3+4.

## §Mode

**Mode:** MCA (substantial cycle authoring new doctrinal content into CDS.md). B-lite scope per the issue body — canonical rules move into CDS-owned surfaces; operational realization stays in `cnos.cdd` role/runtime skills as v0.1 overlays cited under each new section's `### Operational realization` sub-heading.

**Active skills (Tier 3 + Tier 1):**
- `cds/CDS.md` (canonical edit target; structural sibling reference)
- `cnos.cdd/skills/cdd/CDD.md` (kernel reference; source of pre-#402 §5 Artifact Contract content mined at `8f06a606^`)
- `cnos.cdr/skills/cdr/CDR.md` (parallel-record structural sibling for sub-section pattern emulation)
- `cnos.cdd/skills/cdd/design/SKILL.md` (one-source-of-truth principle for the B-lite extract)
- `cnos.cdd/skills/cdd/issue/SKILL.md` (AC interpretation)
- `cnos.cdd/skills/cdd/review/SKILL.md` (β self-review of α's draft)
- `cnos.cdd/skills/cdd/harness/SKILL.md §5.4` (source mining for §Polling primitives)
- `cnos.cdd/skills/cdd/gamma/SKILL.md §2.5` (source mining for §Polling primitives + §Mid-flight clarification)
- `cnos.cdd/skills/cdd/cross-repo/SKILL.md §2.3` (source mining for §Cross-repo proposals STATUS state machine)
- `cnos.cdd/skills/cdd/release/SKILL.md §2.5a + §3.8` (source mining for §Location matrix + §Frozen snapshot rule + §Operational realization)
- `cnos.cdd/skills/cdd/alpha/SKILL.md §2.6`, `beta/SKILL.md` (source mining for §Ownership matrix operational realization)
- pre-#402 CDD.md `§1.5 Tracking` (mined for §Coordination surfaces canonical content) and `§5 Artifact Contract` (mined for §Artifact contract canonical content)

## §ACs

Each AC has a mechanical or read-check oracle per the issue body and the γ scaffold. All ACs verified at HEAD `7e245f45`.

### AC1: §Coordination surfaces exists in CDS.md

**Oracle:** `grep -c "^## Coordination surfaces" src/packages/cnos.cds/skills/cds/CDS.md` returns exactly 1. Non-empty section.

**Verification:**
- Mechanical count = 1 ✓
- Section spans lines 1231–1556 (325 lines, non-empty) ✓
- AC1: **PASS**.

### AC2: §Artifact contract exists in CDS.md

**Oracle:** `grep -c "^## Artifact contract" src/packages/cnos.cds/skills/cds/CDS.md` returns exactly 1. Non-empty section.

**Verification:**
- Mechanical count = 1 ✓
- Section spans lines 1557–1954 (397 lines, non-empty) ✓
- AC2: **PASS**.

### AC3: §Coordination surfaces covers 4 named sub-surfaces

**Oracle:** `### Cycle-state evidence`, `### Polling primitives`, `### Mid-flight clarification`, `### Cross-repo proposals` all present as sub-headings within §Coordination surfaces.

**Verification:**
- `grep -c "^### Cycle-state evidence\|^### Polling primitives\|^### Mid-flight clarification\|^### Cross-repo proposals" src/packages/cnos.cds/skills/cds/CDS.md` = 4 ✓
- All four sub-headings appear in the §Coordination surfaces block (lines 1231–1556), verified by `awk '/^## Coordination surfaces/,/^## Artifact contract/' | grep -c '^###'` = 5 (4 named + 1 §Operational realization) ✓
- AC3: **PASS**.

### AC4: §Artifact contract covers 9 named sub-surfaces

**Oracle:** All 9 sub-headings present within §Artifact contract.

**Verification:**
- `grep -c "^### Terminology\|^### Bootstrap\|^### Ordered flow\|^### Manifest\|^### Location matrix\|^### Ownership matrix\|^### Trace format\|^### Supporting rules\|^### Frozen snapshot rule" src/packages/cnos.cds/skills/cds/CDS.md` = 9 ✓
- All nine sub-headings appear in the §Artifact contract block (lines 1557–1954) ✓
- AC4: **PASS**.

### AC5: Operational-realization pointers present

**Oracle:** Each new top-level section ends with `### Operational realization` citing at least one cdd skill file as the v0.1 overlay.

**Verification:**
- `grep -c "^### Operational realization" src/packages/cnos.cds/skills/cds/CDS.md` = 4 (Sub 3 added 2; Sub 4 added 2 = total 4) ✓
- §Coordination surfaces → §Operational realization cites: `harness/SKILL.md §5.4`, `harness/SKILL.md §5.1–§5.5`, `gamma/SKILL.md §2.5`, `cross-repo/SKILL.md §2.3`, `cross-repo/SKILL.md §2.1` ✓
- §Artifact contract → §Operational realization cites: `release/SKILL.md §2.5a`, `release/SKILL.md §3.8`, `gamma/SKILL.md §2.10`, `gamma/SKILL.md §2.6–§2.9`, `alpha/SKILL.md §2.6`, `beta/SKILL.md`, `release-effector/SKILL.md` ✓
- AC5: **PASS**.

### AC6: Planned re-rooting documented, not performed

**Oracle (part A):** `.cdd/` → `.cds/` migration mentioned in §"Cycle-state evidence" AND §"Location matrix" as **planned** (not performed).
**Oracle (part B):** `git diff origin/main..HEAD -- '.cdd/'` shows no `.cdd/` → `.cds/` rename or move operations.

**Verification:**
- Part A — §Cycle-state evidence: `awk '/^### Cycle-state evidence/,/^### Polling primitives/' | grep -c "re-rooting"` = 3 mentions (the bullet header "Cycle directory state" mentions both forms; the dedicated "Cycle directory naming — planned re-rooting" paragraph; a backref). Re-rooting explicitly labeled "documented, not performed" and "out of scope for this section's authoring cycle" ✓
- Part A — §Location matrix: `awk '/^### Location matrix/,/^### Ownership matrix/' | grep -c "re-rooting"` = 1 dedicated re-rooting paragraph plus every Location-matrix path-rules bullet says "(destination: `.cds/...`)" inline. Re-rooting explicitly labeled "documented here as planned, not performed" ✓
- Part B — `git diff origin/main..HEAD --name-status -- '.cdd/'` shows only 'A' (added) operations; no 'R' (rename) or 'D' (delete). All new `.cdd/` additions are within `.cdd/unreleased/409/` (this cycle's close-out artifacts), zero renames or moves ✓
- AC6: **PASS**.

### AC7: cnos.cdd untouched (hard rule)

**Oracle:** `git diff origin/main..HEAD -- src/packages/cnos.cdd/` returns 0 lines.

**Verification:**
- `git diff origin/main..HEAD -- src/packages/cnos.cdd/ | wc -l` = 0 ✓
- No file under `src/packages/cnos.cdd/` was modified, added, or removed in this cycle's commits.
- AC7: **PASS** (hard rule maintained).

### AC8: cnos.cdr untouched (hard rule)

**Oracle:** `git diff origin/main..HEAD -- src/packages/cnos.cdr/` returns 0 lines.

**Verification:**
- `git diff origin/main..HEAD -- src/packages/cnos.cdr/ | wc -l` = 0 ✓
- No file under `src/packages/cnos.cdr/` was modified, added, or removed.
- AC8: **PASS** (hard rule maintained).

### AC9: extraction-map.md Status column updated

**Oracle:** `docs/extraction-map.md` rows for §Coordination surfaces (row 3) and §Artifact contract (row 4) have a Status field naming "v0.1 migrated" + the CDS canonical path. Rows 1+2 (Sub 3) remain as already-updated; other rows unchanged.

**Verification:**
- Sub 4 status lines added: `grep -c 'v0.1 migrated; canonical at \[`CDS.md §"Coordination surfaces"`\]\|v0.1 migrated; canonical at \[`CDS.md §"Artifact contract"`\]'` = 2 ✓
- Sub 3 status lines preserved: `grep -c 'v0.1 migrated; canonical at \[`CDS.md §"Selection function"`\]\|v0.1 migrated; canonical at \[`CDS.md §"Development lifecycle"`\]'` = 2 ✓
- Diff is +2/-0 lines (`git diff --numstat`); only rows 3 and 4 modified; rows 5+ untouched ✓
- AC9: **PASS**.

### AC10: No deep role rewrites

**Oracle:** No new files added under `skills/cds/{alpha,beta,gamma,delta,epsilon,operator}/`. Only `skills/cds/tracking/` and/or `skills/cds/artifacts/` permitted, each ≤ 40 lines if created.

**Verification:**
- `find src/packages/cnos.cds/skills/cds/{alpha,beta,gamma,delta,epsilon,operator} -type f 2>/dev/null | wc -l` = 0 ✓
- Optional thin overlays at `tracking/` and `artifacts/`: γ skipped per the scaffold dispatch decision (CDS.md alone satisfies the canonical-home commitment; no overlay added)
- `ls src/packages/cnos.cds/skills/cds/` returns: `CDS.md`, `SKILL.md`, `lifecycle/` (Sub 3), `selection/` (Sub 3) — no Sub 4 directory additions
- AC10: **PASS**.

## §Self-check

| Axis | Self-check | Result |
|---|---|---|
| Hard rule AC7 (cnos.cdd untouched) | `git diff origin/main..HEAD -- src/packages/cnos.cdd/` empty | ✓ 0 lines |
| Hard rule AC8 (cnos.cdr untouched) | `git diff origin/main..HEAD -- src/packages/cnos.cdr/` empty | ✓ 0 lines |
| Hard rule AC6 (no filesystem rename) | `git diff --name-status origin/main..HEAD -- '.cdd/'` shows only 'A' | ✓ only Added |
| B-lite scope (no role overlay files) | `find skills/cds/{alpha,beta,gamma,delta,epsilon,operator}` empty | ✓ |
| Section ordering | `grep -n "^## " CDS.md` shows §Selection function → §Development lifecycle → §Coordination surfaces → §Artifact contract → §Empirical anchor | ✓ |
| Section manifest updated | line 1 `<!-- sections: ... coordination-surfaces, artifact-contract ... -->` includes both new section ids | ✓ |
| Version line updated | "Subs 2–4 of cnos#403" + "Sub 4 / cnos#409" | ✓ |
| AC count | 10 ACs, all PASS | ✓ |
| CDD Trace renamed to CDS Trace | §Artifact contract → §Trace format names "CDS Trace" + verbatim format example uses `## CDS Trace` header | ✓ |
| Cross-repo location open question recorded | §Cross-repo proposals notes cross-repo SKILL.md long-term home is open per cnos#404 | ✓ |
| Pointers, not duplication | each cited path is a file location or a §-anchor; no operational mechanics duplicated from cdd into CDS.md | ✓ |

## §Debt

None. All ACs PASS; hard rules maintained; the B-lite scope holds (no operational walkthroughs duplicated into CDS.md; only canonical rules + ### Operational realization pointers at cdd-side mechanics). The optional thin overlays (`skills/cds/tracking/`, `skills/cds/artifacts/`) were intentionally skipped per the γ scaffold's dispatch decision — CDS.md's new sections plus their `### Operational realization` pointers already satisfy the canonical-home commitment; adding pointer-only overlays would add a second file class without changing the binding. Sub 3 made the same call for `selection/` and `lifecycle/` (those directories exist with `SKILL.md` but were γ's call in that cycle, not a B-lite requirement).

## §CDS Trace

| Step | Artifact | Skills loaded | Decision |
|------|----------|---------------|----------|
| 0 Observe | — | — | Read cnos#409 issue body; reviewed CDS.md post-#408 state; read extraction-map.md rows 3+4 |
| 1 Select | — | — | Sub 4 of #403 dispatched by γ@cnos; gap pre-named by the parent tracker |
| 2 Branch | branch | — | `cycle/409` created from `origin/main` at `5f13f61c`; pre-flight (no existing branch; no stalled `.cdd/unreleased/409/` on main) passed |
| 3 Bootstrap | `.cdd/unreleased/409/gamma-scaffold.md` | cds | γ scaffold committed at `5e871274` |
| 4 Gap | this file §Gap | — | Named: §Coordination surfaces and §Artifact contract not yet in CDS.md; pending-cds extraction marker resolution |
| 5 Mode | this file §Mode | cds, design/SKILL.md, issue/SKILL.md, harness/SKILL.md §5.4, gamma/SKILL.md §2.5, cross-repo/SKILL.md §2.3, release/SKILL.md §2.5a + §3.8, pre-#402 CDD.md (8f06a606^) §1.5 + §5 | MCA; B-lite extract; β-α-collapse-on-δ |
| 6 Artifacts | CDS.md (+735 lines), extraction-map.md (+2 lines) | cds, eng/writing | Two new top-level sections inserted at the canonical insertion point; section manifest + version line updated; extraction-map status updated for rows 3+4 |
| 7 Self-coherence | this file | cds | AC1–AC10 all PASS; hard rules verified; no debt |
| 7a Pre-review | this file (review-readiness below) | cds | Pre-review gate: branch is at base `5f13f61c` (Sub 3 merge — already up-to-date with `origin/main` per the harness state); diff is clean; ACs map to evidence |

## §Review-readiness

**Base SHA:** `5f13f61c6606e48a7dc326aa847cfed60a233938` (Merge cycle/408 — current `origin/main`)
**Head SHA:** `7e245f45` (α-409 commit) — to be verified pre-push
**Branch CI state:** N/A — this cycle is markdown-only doctrine authoring with no test or build surface; no CI invariant attaches.
**Diff scope:** 2 files changed in α commit (CDS.md +735 lines, extraction-map.md +2 lines); 1 file changed in γ commit (gamma-scaffold.md +112 lines).

**Per-AC oracles run against branch HEAD `7e245f45`:** all 10 oracles return the expected values per §ACs above.

**Ready for β.** β collapsed onto same agent under β-α-collapse-on-δ; β self-review follows in `.cdd/unreleased/409/beta-review.md`.
