# γ-scaffold — Cycle 419

**Cycle:** [cnos#419](https://github.com/usurobor/cnos/issues/419) — Sub 5 of [cnos#404](https://github.com/usurobor/cnos/issues/404)
**Branch:** `cycle/419` from `origin/main @ 1bf9f92f` (Sub 4 / cnos#418 landed).
**Mode:** γ+α+β collapsed on δ; docs-only / package migration (no behavioral redesign).
**Date:** 2026-05-22.

## Scope ruling (three-ruling pattern, same as Subs 2 / 3 / 4 — cnos#416 / cnos#417 / cnos#418)

1. **Move wholesale** — the cdd-iteration receipt-stream doctrine resident in `cnos.cdd/skills/cdd/post-release/SKILL.md §5.6b` (per-finding shape; INDEX.md aggregator-update procedure; courtesy empty-findings stub rule per cycle/401) lands at a new canonical home: `cnos.handoff/skills/handoff/receipt-stream/SKILL.md`.
2. **Source section becomes pointer** — `post-release/SKILL.md §5.6b` is rewritten as a short pointer (≤ 30 lines) preserving the §-anchor for backward-compatible citation. Other sections of post-release/SKILL.md remain unchanged.
3. **Update consumer cross-references** to cite the new canonical path — `cnos.handoff/skills/handoff/artifact-channel/SKILL.md` (Sub 4 cited receipt-stream as forthcoming), `cnos.cdd/skills/cdd/epsilon/SKILL.md §1` (the role-local ε surface that references the receipt-stream procedure), `cnos.cdd/skills/cdd/activation/SKILL.md` (cites §5.6b for the per-finding shape and authoring procedure), `cnos.cdd/skills/cdd/gamma/SKILL.md` (cites §5.6b for the close-out gate), `cnos.handoff/skills/handoff/cross-repo/SKILL.md` (two cites of §5.6b for the bundle/ε product), and `cnos.handoff/skills/handoff/SKILL.md` (loader: drop "forthcoming" / "until Sub 5 lands" qualifiers).

Plus: update `cnos.handoff/skills/handoff/HANDOFF.md` (move receipt-stream from Forthcoming → Landed; all 5 sub-skills now landed) and `cnos.handoff/docs/extraction-map.md` (§6 rows marked migrated; §10 verification status updated).

## Open-question rulings (extraction-map.md §6 + Q4)

- **§6 row 5 (`.cdd/iterations/INDEX.md` content):** **stays put.** The aggregator file is data, not doctrine; the doctrine about it moves (where the row format lives) but the file's content rows remain at `.cdd/iterations/INDEX.md` (the live aggregator). Only the standard close-out row for this cycle is added.
- **§6 row 6 (cnos.cds CDS.md §"Closure" cite):** Sub 6 sweep territory per the extraction map. CDS.md §"Closure" carries its own canonical content for the gate / closure-stub allowance and references `cnos.cdd/skills/cdd/post-release/SKILL.md §5.6b` in §F9 / §"Pointer references" as the operational realization. The §5.6b pointer this cycle authors will keep those cites resolving (the §-anchor is preserved); Sub 6 will repoint them at the new canonical home.
- **Q4 (Sub 5 polling absorption):** **deferred** per extraction-map.md §7 recommendation. `cnos.cdd/skills/cdd/harness/SKILL.md §5.4` polling primitives stay as cnos.cdd runtime substrate; re-evaluate when a non-CDD/CDS consumer surfaces. Out of scope this cycle.
- **Schema lift (Q-equivalent at row §6):** **defer** per the extraction-map.md note ("Could be lifted to typed schema at `schemas/handoff/iteration-finding.cue` if Sub 5 chooses; defer that to Sub 5 dispatch"). Schema stays Markdown for v0.1 per Sub 3 precedent (Q2 ruling on implementation-contract).

## Surfaces γ expects α to touch

| Surface | Action |
|---|---|
| `src/packages/cnos.handoff/skills/handoff/receipt-stream/SKILL.md` | **author** (new file; synthesis of `post-release/SKILL.md §5.6b` content with cnos.cdr `epsilon/SKILL.md` cite + cycle/401 anchor + cnos.handoff sibling cites; ~250–400 lines per cnos#419 D1) |
| `src/packages/cnos.cdd/skills/cdd/post-release/SKILL.md` | §5.6b rewritten as pointer paragraph (≤ 30 lines); other sections unchanged |
| `src/packages/cnos.handoff/skills/handoff/HANDOFF.md` | move "receipt-stream" from Forthcoming → Landed (one-row addition + non-goals row update; all 5 sub-skills now landed) |
| `src/packages/cnos.handoff/skills/handoff/SKILL.md` | update v0.1 caveat: receipt-stream now landed under cnos#419; all 5 sub-skills land; drop "until Sub 5 lands" / "forthcoming" qualifiers in the per-skill manifest entry |
| `src/packages/cnos.handoff/docs/extraction-map.md` | mark §6 rows as `**Status: v0.1 migrated; canonical at cnos.handoff/skills/handoff/receipt-stream/SKILL.md**`; update §10 verification status |
| `src/packages/cnos.handoff/README.md` | update Sub 5 status (receipt-stream lands) |
| `src/packages/cnos.handoff/skills/handoff/artifact-channel/SKILL.md` | drop "forthcoming" qualifier on receipt-stream cite (§2.5; §"Out of scope"; §"Related documents"; §"Non-goals"); cite Sub 5 as landed |
| `src/packages/cnos.handoff/skills/handoff/cross-repo/SKILL.md` | repoint two cites of `post-release/SKILL.md §5.6b` to handoff/receipt-stream/SKILL.md (one in bundle-file-set table, one in §"Related documents") |
| `src/packages/cnos.cdd/skills/cdd/epsilon/SKILL.md` | repoint §1 cites of `post-release/SKILL.md §5.6b` to handoff/receipt-stream/SKILL.md (three cites: per-finding shape; cadence rule; aggregator); §3 cross-references list |
| `src/packages/cnos.cdd/skills/cdd/activation/SKILL.md` | repoint cites of `post-release/SKILL.md §5.6b` to handoff/receipt-stream/SKILL.md (two cites: authoring procedure; per-finding shape) |
| `src/packages/cnos.cdd/skills/cdd/gamma/SKILL.md` | one cite (`post-release/SKILL.md` Step 5.6b at line 333) — leave as-is (it remains a valid pointer through the §5.6b pointer; Sub 6 sweeps if needed) OR co-cite handoff/receipt-stream as canonical |

## AC oracle approach

11 ACs from cnos#419 issue body are mechanical (file existence / line counts / grep counts / negative greps). γ runs the AC matrix in `self-coherence.md` after authoring.

- AC1: `test -f` on the new SKILL.md + post-release/SKILL.md still exists
- AC2: ≥ 6 receipt-stream keyword hits; 200 ≤ lines ≤ 500
- AC3: §5.6b ≤ 30 lines between heading + next heading; post-release/SKILL.md file ≥ 80% original line count; ≥ 1 cite of new canonical path
- AC4: HANDOFF.md receipt-stream under Landed; all 5 sub-skills landed
- AC5: extraction-map.md §6 rows marked migrated
- AC6: handoff/artifact-channel cites receipt-stream as landed
- AC7: cnos.cdr untouched (`git diff origin/main..HEAD -- src/packages/cnos.cdr/` empty or minor citation repair only)
- AC8: INDEX.md content unchanged except this cycle's standard close-out row
- AC9: no schemas/handoff, no schemas/ccnf-o, no cdd-verify changes
- AC10: CDD.md kernel byte-identical (≤ 5 lines insertion total if pointer-list addition needed; expected 0)
- AC11: per-finding shape + INDEX row format + cadence rule + disposition vocabulary spot-check unchanged

## Empirical anchors (precedent)

Sub 2 / [cnos#416](https://github.com/usurobor/cnos/issues/416) (cross-repo wholesale move). Sub 3 / [cnos#417](https://github.com/usurobor/cnos/issues/417) (dispatch synthesis). Sub 4 / [cnos#418](https://github.com/usurobor/cnos/issues/418) (mid-flight + artifact-channel two parallel surfaces). Sub 5 differs in shape: single surface (one new sub-skill file), but the source content is the largest single section of `post-release/SKILL.md` (§5.6b — lines 293–340) — fourth cycle in a row using the same δ+γ+α+β collapse pattern; operationally stable.

The **receipt-stream surface** itself anchors on cycle/335 (where `.cdd/iterations/INDEX.md` was initialized; bootstrap for the receipt-stream artifact per cnos.cds `empirical-anchor-cdd.md` row #335) and on cycle/401 (where the courtesy empty-findings stub convention landed — `protocol_gap_count: 0` cycles may write an empty-findings courtesy file but are no longer required to). Every cycle since cnos#364 has produced an INDEX.md row + a `cdd-iteration.md` (file or courtesy stub).

## Expected diff scope

- 1 new file: `cnos.handoff/skills/handoff/receipt-stream/SKILL.md` (~250–400 lines)
- 1 section rewrite in `cnos.cdd/skills/cdd/post-release/SKILL.md §5.6b` (~50 lines → ~25 lines pointer; net ~ -25 lines)
- 1 row addition in `cnos.handoff/skills/handoff/HANDOFF.md` (receipt-stream → Landed; non-goals row update)
- ~5–10 line edit in `cnos.handoff/skills/handoff/SKILL.md` (drop forthcoming qualifiers)
- ~2–4 row updates in `cnos.handoff/docs/extraction-map.md` (§6 marked migrated; §10 verification status)
- ~3 line edit in `cnos.handoff/README.md`
- ~5–10 line edit in `cnos.handoff/skills/handoff/artifact-channel/SKILL.md` (drop forthcoming qualifiers on receipt-stream cites)
- ~2 cite updates in `cnos.handoff/skills/handoff/cross-repo/SKILL.md` (repoint §5.6b → receipt-stream)
- ~3 cite updates in `cnos.cdd/skills/cdd/epsilon/SKILL.md` (repoint §5.6b → receipt-stream; epsilon stays the role-local authority but the receipt-stream procedure lives in handoff)
- ~2 cite updates in `cnos.cdd/skills/cdd/activation/SKILL.md` (repoint §5.6b → receipt-stream)
- 0 changes in cnos.cdr (per Sub 2 / Sub 3 / Sub 4 verification; confirm at AC time)
- 0 schema / runtime / cdd-verify / src/go changes
- 0 changes in `cnos.cdd/skills/cdd/CDD.md` (receipt-stream discoverability runs through epsilon/SKILL.md + post-release pointer + CDS.md; no kernel edit needed)
- 0 content changes in `.cdd/iterations/INDEX.md` except this cycle's standard close-out row

## Mode declaration

γ+α+β collapsed on δ (single-session). Commits will be authored under `γ-419:`, `α-419:`, `β-419:` per Sub 2 / Sub 3 / Sub 4 precedent. γ does not self-merge — operator merges with `Closes #419`.
