# Phase 2 STEL Spec Kit — T002 independent reviewer sign-off

**Task:** T002 — reviewer sign-off on merged Spec Kit package (PR #303)

**Updated:** 2026-06-14

**Evidence baseline:** `bc738c3` on `main` (PR #303 merge)

> **Independent review: GO** — planning package approved as Phase 2 implementation baseline.

---

## Review scope

| Artifact | Path | Reviewed |
|----------|------|----------|
| Feature spec | `specs/002-v8-phase2-stel-controller/spec.md` | Yes |
| Implementation plan | `specs/002-v8-phase2-stel-controller/plan.md` | Yes |
| Tasks | `specs/002-v8-phase2-stel-controller/tasks.md` | Yes |
| Gate evidence contract | `specs/002-v8-phase2-stel-controller/contracts/phase2-gate-evidence-contract.md` | Yes |
| Evidence index | `docs/research/phase2-evidence-index.md` | Yes |

---

## Sign-off question

**Is this package approved as the planning baseline for Phase 2 implementation?**

**Answer: GO**

---

## Scope confirmation

| Requirement | Status |
|-------------|--------|
| In scope: multi-hop L1 + in-process executor for 3 deferred golden rows | Confirmed |
| In scope: hardened L2 admission (`serve \| degrade \| bypass \| cache_hit`) | Confirmed |
| In scope: H3/H4 compact-surface gates (minimum exit) | Confirmed |
| In scope: A-029 T2 equivalence spike | Confirmed |
| H5 follows binding gap-plan rule; documented rationale if not PASS | Confirmed in spec §Clarifications |
| Out of scope: persistence, EMA-to-L2, B-RESULTS/§8.7, H6–H8, new MCP tools | Confirmed |
| First implementation slice: P2-S1/P2-S2, T010–T016 multi-hop golden closure | Confirmed |
| Runtime implementation blocked until sign-off recorded | Satisfied by this artifact |

---

## Minimum exit criteria (reviewer note)

- **Minimum exit:** H3 + H4 + A-029 (PASS or documented P-T2 pivot)
- **H5:** required by gap-closure plan §7; SHOULD PASS; FAIL requires documented rationale before full Phase 2 exit claim

---

## Blocker table

| ID | Type | Status | Reason |
|----|------|--------|--------|
| — | — | — | No blockers |

`blocking_gaps`: **[]**

---

## Independent sign-off (T002)

| Field | Value |
|-------|-------|
| Spec Kit producer | Cursor agent (PR #303) |
| Independent reviewer | Codex agent (Cloud Agent) |
| Sign-off reference | `docs/research/phase2-spec-review-signoff.md` |
| Decision | **GO** |
| Decision date | 2026-06-14 |
| Milestone branch authorized | `cursor/v8-phase2-stel-controller` |

**T002 status:** **PASS** — Phase 2 implementation may begin on milestone branch per tasks.md P2-S1/P2-S2.

---

## Final decision

```yaml
task: T002
decision: GO
phase: 2
planning_baseline_commit: bc738c3
authorized_first_slice: P2-S1/P2-S2
authorized_tasks: T010-T016
blocked_until_complete: []
explicitly_out_of_scope:
  - calibration_persistence
  - ema_to_l2_auto_tuning
  - b_results_section_8_7
  - h6_h7_h8_pass_claims
  - new_mcp_tools
```
