# RFC-004: Open Items Convergence Closure Ledger (Q1 2026)

- Status: Closed
- Date: 2026-02-09
- Owner: DX/Core
- Scope: Historical closure ledger for the final convergence items after RFC-002 and RFC-003
- Inputs:
  - `docs/architecture/CODE-ANALYSIS-REPORT.md`
  - `docs/architecture/RFC-001-dx-ux-governance.md`
  - `docs/architecture/RFC-002-code-health-remediation-q1-2026.md`
  - `docs/architecture/RFC-003-generate-decomposition-q1-2026.md`

## 1. Context

RFC-004 was the last-mile convergence track for the Q1 2026 DX/refactor line.

It existed to close:
1. the final generate decomposition merge (`G6`)
2. documentation status drift across RFCs
3. the remaining high-impact structural items from RFC-001 risk controls
4. the docs auto-update PR once the status sync had landed

That work is now complete on `main`. This document should be read as a historical closure ledger, not an active execution plan.

## 2. Mechanical Status Table (source of truth)

| Item | Status | Reference | Merge SHA | Date |
|------|--------|-----------|-----------|------|
| RFC-003 G6 | Merged | PR #271 | `f21c85ef` | 2026-02-10 |
| O2 docs status convergence | Merged | PR #273 | `37f25c2c649436e708eea9783af4a0bd2c021189` | 2026-02-10 |
| O3/O4/O5 convergence (monitor split, typed hot path, parity fence) | Merged | PR #274 | `294388b2f74646e1aee419815eb384ec5e19eb04` | 2026-02-09 |
| O6 docs auto-update | Merged | PR #272 | `efd725b4c66fb201ffd3c917a85e62808f39e2c1` | 2026-02-10 |

## 3. Closed Items

### O1 — RFC-003 G6 merge completion

Closed by PR #271 (`f21c85ef`, 2026-02-10).

Result:
- `generate.rs` decomposition line fully closed through G6
- RFC-003 is complete

### O2 — Documentation status convergence

Closed by PR #273 (`37f25c2c649436e708eea9783af4a0bd2c021189`, 2026-02-10).

Result:
- RFC-001, RFC-002, RFC-003, and the Code Analysis report were mechanically aligned to merged/open facts at that time
- RFC-004 became the canonical evidence table for the Q1 convergence line

### O3 / O4 / O5 — Structural convergence

Closed together by PR #274 (`294388b2f74646e1aee419815eb384ec5e19eb04`, 2026-02-09).

Result:
- `monitor.rs` monolith was decomposed behind characterization tests
- typed hot-path mapping was tightened so legacy substring classification was no longer the primary hot-path mechanism
- run/ci parity fences landed as explicit contract tests

### O6 — Docs auto-update

Closed by PR #272 (`efd725b4c66fb201ffd3c917a85e62808f39e2c1`, 2026-02-10).

Result:
- the pending docs refresh was merged after the status-convergence pass
- RFC-004 no longer has any open item attached to it

## 4. Outcome

RFC-004 is closed because all of the original exit conditions are now true on `main`:

1. RFC-003 closed through G6
2. Q1 RFC/doc status drift was reconciled
3. remaining structural P1 convergence items were merged
4. the docs auto-update follow-up was also merged

## 5. Residual Posture

There are no remaining open execution items under RFC-004.

What remains after RFC-004 belongs to newer lanes:
- release/changelog hygiene
- repo-wide roadmap truth sync
- BYOS Phase 1 closure under ADR-015
- any future performance work only if Wave C is re-opened by fresh measurements

## 6. Out of Scope

- New runtime capabilities
- New policy surfaces
- Retroactive reclassification of the original code-analysis findings without a new audit snapshot
