# γ close-out — cycle/407 (Sub 2 of cnos#403)

**Issue:** [cnos#407](https://github.com/usurobor/cnos/issues/407) — Sub 2 of [cnos#403](https://github.com/usurobor/cnos/issues/403): Author cnos.cds/CDS.md — six-field software instantiation contract.
**Mode:** design-and-build; γ+α+β collapsed on δ.
**Rounds:** R1 APPROVED.
**ACs:** 9/9 PASS.
**Parent:** [cnos#403](https://github.com/usurobor/cnos/issues/403) (cnos.cds bootstrap tracker; this is Sub 2 of 7; gates Subs 3–5).

## Triage table

| Source | Finding | Class | Disposition |
|---|---|---|---|
| α-closeout α-Obs-1 | AC4 sliding-window audit caught 4 substantive paragraphs of kernel-prose echo in first-pass draft | non-binding (α-self-discipline) | Accepted as α's authoring-discipline observation; α rephrase pass replaced all 4 echoes with citations. No patch this cycle. Filed as **candidate ε observation** for future cycles' α/β skill authoring (recommend mechanical AC4 sliding-window audit be codified). |
| α-closeout α-Obs-2 | Field 6's β-α-collapse-on-δ permission is a substantive doctrine commitment | non-binding (doctrine-shape decision) | Accepted; the declaration is the doctrine surface the empirical practice was operating without. Conditions and configuration-floor consequences are stated; sharp enough to be β-enforceable. No patch. |
| α-closeout α-Obs-3 | Field 4's three-time-scale cadence is a structural CDS-vs-CDR divergence | non-binding (CDS-specific specialization) | Accepted; the divergence is correctly attributed to the loss-function difference (engineering has releases; research has only wave-close). No patch. |
| α-closeout α-Obs-4 | CDS.md 1040 lines vs 500–700 target | non-binding (over-target) | Accepted; issue body explicitly says "target, not a hard ceiling"; excess length is substantive scope-discipline content (Sub-N-lines, empirical-anchor spot-checks, AC4-enforced reframings). No patch. Filed as **candidate ε observation** for future contract-authoring cycles' line targets. |
| β-review Obs-1 | CDS.md line count exceeds 500–700 target | non-binding (same as α-Obs-4) | Same disposition. |
| β-review Obs-2 | Field 5 `cds-*-gap` rename declaration | non-binding (doctrine commitment Sub 5 honors) | Accepted; rename is mechanical per ROLES.md §4b.3; transition is described as organic. Sub 5 will author `cds-iteration.md` per-finding shape using the new names. No patch. |
| β-review Obs-3 | Field 6 β-α-collapse-on-δ canonical declaration | non-binding (doctrine improvement) | Accepted; same as α-Obs-2. No patch. |
| β-review Obs-4 | Field 4 post-rename `.cds/` paths with `.cdd/` historical-state notes | non-binding (forward-looking contract) | Accepted; rename is named as open coordination question in `docs/extraction-map.md §14`. No patch. |
| β-review Obs-5 | Field 4 three-time-scale cadence | non-binding (same as α-Obs-3) | Same disposition. |
| β-review Obs-6 | Field 3 narrative + typed-receipt two-surface declaration | non-binding (accurate empirical-anchor description) | Accepted; describes the actual mid-transition state (pre-Phase 3 of cnos#366); the composition statement is verified against `schemas/cds/receipt.cue`. No patch. |
| β-review Obs-7 | §"Architecture choice" rationale (5) renaming "twice" → "thrice" | non-binding (numerical update) | Accepted; reflects post-cnos#376 empirical state. No patch. |
| β-closeout β-Obs-1 | AC4 sliding-window audit as portable β-rigor check | non-binding (β-recommended candidate `cds-skill-gap`) | Accepted; recorded for Sub 3's β-skill authoring consideration. No patch this cycle. Filed as **candidate ε observation**. |
| β-closeout β-Obs-2 | Per-Field Sub-N-vs-Field-M lines as CDR.md improvement candidate | non-binding (cross-protocol observation; CDR territory) | Accepted as a future-CDR-cycle consideration; not a CDS gap. Recorded as cross-protocol cross-reference observation only. No patch. |

**Total findings:** 13 non-binding observations (some duplicated between α/β closeouts and β-review, dedupable to ~9 distinct observations), 0 binding, 0 `cds-*-gap` (and 0 `cdd-*-gap`).

`protocol_gap_count` for this cycle: **0**.

The two candidate ε observations (α-Obs-1 + β-Obs-1: AC4 sliding-window audit codification; α-Obs-4: line-target for contract-authoring cycles) are recorded as candidate ε observations for *future* CDS cycles to consider, not as protocol gaps this cycle surfaces. The discipline that produced them (the AC4 audit itself, the explicit line-target acknowledgment) is the discipline that prevented them from becoming binding gaps.

## §9.1 trigger assessment

| Trigger | Fire condition | Fired? |
|---|---|---|
| Review churn | review rounds > 2 | No (R1 APPROVED) |
| Mechanical overload | mechanical ratio > 20% AND findings ≥ 10 | No (0 binding findings; 13 non-binding observations are advisory, not mechanical-rework signals) |
| Avoidable tooling / environment failure | environment blocked | No (cn build --check ran cleanly; AC4 sliding-window audit ran cleanly via Python script) |
| CI red on merge commit | CI fails post-merge | TBD (pre-merge; operator authority) |
| Loaded skill failed to prevent a finding | skill underspecified | No (no findings) |

No §9.1 triggers fired.

## Coherence delta

This cycle shipped:

- **`cnos.cds/skills/cds/CDS.md`** — the canonical instantiation contract; 7 top-level sections; 6 fields declared with `### Field N:` headings; ~1040 lines mirroring `cnos.cdr/skills/cdr/CDR.md`'s structural shape. The contract surface Subs 3–5 dispatch against now exists.
- **`cnos.cds/skills/cds/SKILL.md`** — edited to remove "forthcoming" / "Sub 2 lands it" notes about CDS.md; Step 1 of Load order loads CDS.md; Rule section names CDS.md as the only normative source; Conflict rule simplified; v0.1 caveat retained only for role-overlay-forthcoming portion.
- **`.gitkeep` removed** — CDS.md now occupies the directory; placeholder no longer load-bearing.
- **Subs 3–5 unblocked** — the `docs/extraction-map.md` destinations (`skills/cds/CDS.md §"<surface>"`) now exist as anchor targets; Subs 3–5 can dispatch operational-detail migration against the contract's named surfaces.
- **Sub 6 prepared** — the contract surface that Sub 6's marker-sweep will re-point CDD.md citations to is now landed.
- **Sub 7 anchored** — `## Empirical anchor` declares cnos itself as the empirical anchor; Sub 7's `docs/empirical-anchor-cdd.md` will perform the surface-by-surface mapping.
- **First canonical declaration of β-α-collapse-on-δ for skill/docs-class cycles** — Field 6 names the pattern with stated conditions and configuration-floor consequences, transforming a wave-manifest precedent into a doctrine-surface commitment.
- **First canonical declaration of `cds-*-gap` taxonomy** — Field 5 names the four classes (skill/protocol/tooling/metric) per ROLES.md §4b.3's `{protocol}-{axis}-gap` convention; the rename from `cdd-*-gap` is mechanical and described as organic.

The cycle does not modify cnos.cdd, cnos.cdr, schemas, harness, CI, runtime, or build surfaces. The work is doctrinal-contract authoring.

## Configuration-floor declaration

Per `release/SKILL.md §3.8`, this cycle's γ+α+β-collapsed-on-δ pattern caps both γ-axis and β-axis at A- (γ/δ separation absent; β-α collapse acknowledged per Rule 7). The cap is documented in the gamma scaffold ("Dispatch shape" section) and is appropriate for skill/docs-class cycles per the breadth-2026-05-12 wave manifest precedent — a precedent which is now formally canonical via CDS.md Field 6 (this cycle's own deliverable).

## Closure declaration

**Cycle #407 closed (α/β/γ-level; merge pending operator action).** All nine ACs verified PASS. β-review APPROVED R1. Thirteen non-blocking observations recorded (dedupable to ~9 distinct); zero binding findings. No `cds-*-gap` or `cdd-*-gap` findings; `protocol_gap_count = 0`.

Per the cycle/401 cadence rule, `cdd-iteration.md` is **not required** when `protocol_gap_count == 0`. A courtesy empty-findings stub is filed under `.cdd/unreleased/407/cdd-iteration.md` for traceability and per the dispatch's "courtesy empty-findings stub" obligation; an INDEX.md row is appended per the cycle/401 courtesy convention.

(Naming note: the per-cycle iteration file remains `cdd-iteration.md` for this cycle. CDS.md Field 5 declares `cds-iteration.md` as the post-rename canonical name; the rename is mechanical Sub-5-territory operational detail. Using `cdd-iteration.md` here preserves consistency with the empirical-anchor cycle wave (#335 through #406) until Sub 5 lands the rename.)

**Receipt obligation per CDD §5.5b:** the cycle's parent-facing artifact is the merged branch + closed issue. cycle/407 ships to origin (push pending); operator merges with `Closes #407` keyword in the merge commit to auto-close the issue. The receipt set (close-outs + cdd-iteration + INDEX row) is filed under `.cdd/unreleased/407/`.

**Next (operator action):**

1. Operator pulls `cycle/407` from origin, reviews the changes (1 new file `CDS.md` + 1 modified `SKILL.md` + 1 deleted `.gitkeep` under `src/packages/cnos.cds/skills/cds/` + 7 cycle-artifact files under `.cdd/unreleased/407/` + 1 INDEX row).
2. Operator merges with `git merge cycle/407 --no-ff` and commit message including `Closes #407` to auto-close the issue.
3. cycle/407 branch is deleteable post-merge (no further activity expected on this branch).
4. With Sub 2 closed, Subs 3–5 (lifecycle / artifacts / review-gate migration) become dispatchable against CDS.md's named surfaces; the extraction map's destinations now resolve to anchor targets in a landed file. Sub 6 (marker-cleanup) gates on Subs 3–5 landing. Sub 7 (empirical anchor) gates on Subs 3–5 landing (so the mapping target surfaces exist).
