# ADR Closeout Form: ADR-0.0.63-closeout-ceremony-runtime-engine-parity

**Status**: Phase 2 — Completed

---

## Pre-Attestation Checklist

Closeout evidence verified:

- [x] All checklist items in ADR are complete
- [x] All OBPIs have passing acceptance criteria
- [x] Gate 2 (TDD): Tests pass
- [x] Gate 3 (Docs): Docs build passes
- [x] Gate 4 (BDD): Behave suite passes
- [ ] Code reviewed

## Evidence Paths

| Gate | Evidence | Command/Path |
|------|----------|--------------|
| Gate 1 | ADR exists | `docs/design/adr/foundation/ADR-0.0.63-closeout-ceremony-runtime-engine-parity/ADR-0.0.63-closeout-ceremony-runtime-engine-parity.md` |
| Gate 2 (TDD) | Tests pass | `uv run gz test` |
| Quality (Lint) | Lint passes | `uv run gz lint` |
| Quality (Typecheck) | Typecheck passes | `uv run gz typecheck` |
| Gate 3 (Docs) | Docs build | `uv run mkdocs build --strict` |
| Gate 4 (BDD) | BDD passes | `uv run -m behave features/` |
| Gate 5 | Human attests | `uv run gz closeout ADR-0.0.63-closeout-ceremony-runtime-engine-parity` |

## OBPI Status

| OBPI | Description | Status |
|------|-------------|--------|
| [OBPI-0.0.63-01-step-advance-gate-5-enforcement](OBPI-0.0.63-01-step-advance-gate-5-enforcement.md) | **step-advance-gate-5-enforcement** — `src/gzkit/commands/closeout_ceremony.py:401, 416-426, 449-456`. Step 6→7 `--next` reads ledger for the prior step's expected receipt and fail-closes if absent. Eliminates the Gate 5 bypass. | Completed |
| [OBPI-0.0.63-02-demo-and-arb-receipt-discipline](OBPI-0.0.63-02-demo-and-arb-receipt-discipline.md) | demo extraction joins multi-line fenced commands, classifies shell-less executability, and binds demo ARB receipts to observed exit code + stdout SHA | Completed |
| [OBPI-0.0.63-03-evidence-summary-and-proof-binding](OBPI-0.0.63-03-evidence-summary-and-proof-binding.md) | **evidence-summary-and-proof-binding** — `.gzkit/skills/gz-adr-closeout-ceremony/SKILL.md:285-339` plus new CLI validator `gz validate --closeout-proof-binding`. Evidence Summary Template gains a REQ column; every receipt row binds `(REQ-ID, receipt-ID, file-line range)` in markdown + structured JSON. Validator exits 3 on missing REQ↔receipt-ID bindings. | Completed |
| [OBPI-0.0.63-04-closeout-skill-reverify-wording-fix](OBPI-0.0.63-04-closeout-skill-reverify-wording-fix.md) | **closeout-skill-reverify-wording-fix** — `.gzkit/skills/gz-adr-closeout-ceremony/SKILL.md:60-65`. Wording fix resolving the "Does NOT re-verify" vs spec-reviewer "Independent re-verification" contradiction (CLI pipeline does not re-execute; spec-reviewer persona-dispatch retains independent re-verification). | Completed |
| [OBPI-0.0.63-05-dual-runtime-collapse](OBPI-0.0.63-05-dual-runtime-collapse.md) | **dual-runtime-collapse** — `gz closeout --ceremony --attest` vs Step 7 pipeline emit identical ledger surfaces. The runtime engine is single source; `--attest` becomes an orchestration shortcut. | Completed |
| [OBPI-0.0.63-06-req-evidence-schema-consumption](OBPI-0.0.63-06-req-evidence-schema-consumption.md) | **req-evidence-schema-consumption** — Post-P2 increment. The runtime engine consumes the `req_evidence:` field added to `obpi_brief_structure.json` by `ADR-pool.obpi-authoring-mechanical-floor`; binding logic is mechanical, not prose. | Completed |
| [OBPI-0.0.63-07-verify-stage-command-shape-gate](OBPI-0.0.63-07-verify-stage-command-shape-gate.md) | reject non-shell-less brief Verification commands at authoring time (gz validate scope) and at the verify stage (clear failure), reusing the BI-1 classifier | Completed |

## Defense Brief

### Closing Arguments

*No closing arguments found.*

### Product Proof

| OBPI | Proof Type | Status |
|------|-----------|--------|
| OBPI-0.0.63-01-step-advance-gate-5-enforcement | docstring | FOUND |
| OBPI-0.0.63-02-demo-and-arb-receipt-discipline | docstring | FOUND |
| OBPI-0.0.63-03-evidence-summary-and-proof-binding | command_doc | FOUND |
| OBPI-0.0.63-04-closeout-skill-reverify-wording-fix | governance_artifact | FOUND |
| OBPI-0.0.63-05-dual-runtime-collapse | docstring | FOUND |
| OBPI-0.0.63-06-req-evidence-schema-consumption | docstring | FOUND |
| OBPI-0.0.63-07-verify-stage-command-shape-gate | docstring | FOUND |

### Reviewer Assessment

*No reviewer assessments found.*


## Human Attestation

### Verbatim Attestation

- `attest completed — ADR-0.0.63 closeout-ceremony-runtime-engine-parity: 7/7 OBPIs attested; 29 Acceptance-Criteria REQs bound via ln: to passing ARB receipts, gz validate --closeout-proof-binding exit 0; fresh closeout QA green: arb-ruff-f05703d8b5c74730b3be0fb2619cda93, arb-step-unittest-4bd33eccdf254997adc0a56dfe0f017e, arb-step-typecheck-3ef794e4b89d4cc5a13863aa2276e9b9, arb-step-mkdocs-3dbefdf3c0f14c6bac637cce21f2e59b; 67 ceremony/pipeline/brief-shape tests green across 12 live demos.`

**Attested by**: Jeffry
**Timestamp (UTC)**: 2026-05-30T11:45:53Z
