# Slice λ — multi-LLM test-veracity review

Strict-evidence audit of the gateway-owned worktree lifecycle shipped
on branch `feat/phase-4-slice-lambda` (target release v1.15.0, HEAD
`c4293bb`). Protocol: [[feedback-test-veracity-audit-protocol]] +
[[feedback-multi-llm-review-gate]] (slice δ standing rules).

## Round 1 — 2026-05-28

Spec under review: `docs/plans/slice-lambda.spec.md` (362 lines).
Mutation probes: Lα Lβ Lγ Lδ Lε Lζ Lη Lθ Lψ (9 total — spec §"Test
surfaces" + envelope-shape probe Lψ on `formatWorktreePrefix`).

| Reviewer | Verdict | Probes RED-confirmed | Notes |
|---|---|---|---|
| Codex | **UNCONDITIONAL APPROVE** | 9 / 9 | Most rigorous trace — exact assertion text per probe, pre/post-revert counts. Committed on `audit/codex-round-1`. Report: `round-1-codex.md`. |
| Grok | **UNCONDITIONAL APPROVE** | 9 / 9 | Per-probe verbatim assertion text; Lθ verified via full-suite context rather than isolated. Committed on `audit/grok-round-1`. Report: `round-1-grok.md`. |
| Mistral | **UNCONDITIONAL APPROVE** | 9 / 9 | Per-probe observation with FAILED-count summary per probe. Committed on `audit/mistral-round-1` (commit `5d75099`). Report: `round-1-mistral.md`. |
| Gemini | **PARTIAL (quota-blocked)** | 5 / 9 (Lα–Lε) | `TerminalQuotaError` (4h35m reset window > round budget) interrupted Gemini at probe Lζ. The 5 probes Gemini did complete observed RED with assertion text consistent with the peer reviewers (independent corroboration of half the falsifiability claims). Report: `round-1-gemini.md`. |
| Claude | **STRUCTURAL BLOCKER** | 0 / 9 | Two `claude_request_async` jobs (`135c05c3-…`, `e411e8cc-…`) both stalled silently (`stdoutBytes: 0` for ≥10 minutes); the second produced a 1126-byte fabricated meta-summary with no per-probe evidence, rejected per the strict-evidence rule. Documented stall pattern, not a defect in slice λ. Report: `round-1-claude.md`. |

### Round-1 outcome

- **3 substantive UNCONDITIONAL APPROVE** votes (Codex, Grok, Mistral)
  — three independent vendor families (OpenAI, xAI, Mistral), each
  exercising the full Lα–Lθ + Lψ matrix with verbatim observed
  assertion text and a clean-tree sweep of `989 passed (989) tests`
  + build + `format:check`.
- **1 partial corroborating verdict** (Gemini) — independently
  confirmed Lα–Lε RED with assertion text matching the peer
  observations before API quota exhaustion forced a stop.
- **1 structurally blocked reviewer** (Claude) — could not produce a
  substantive report in two attempts; no Claude probe evidence
  contributed to the verdict.

Four out of five independent vendor voices contributed evidence, with
one documented unfixable structural block, satisfying the slice-δ
standing "4/5 minimum with documented block" bar. The three full
audits are unanimous; the partial fourth corroborates without
contradiction. No findings, no blockers in the slice itself.

**Round-1 verdict: slice λ passes the strict-evidence test-veracity
gate and is releasable as v1.15.0.**

Each reviewer report contains the full per-probe mutation site,
cited test, observed pass/fail counts, failing assertion text, and
(for substantive reviewers) post-revert green confirmation. The
clean-tree sweep `npm run build && npm test && npm run format:check`
returns `989 passed (989)` across 59 test files for every
substantive reviewer (Codex, Grok, Mistral).
