# Cross-LLM review outcome — Issue #1 mirror + contract-driven grok provider codegen

Date: 2026-06-10. Spec: `2026-06-10-issue1-provider-codegen.verification.md`.
Diff: `2026-06-10-issue1-provider-codegen.tracked.diff`. Base `e11b5cf`.

Three independent reviewers reached the working tree with full read access and
were instructed to verify every claim against actual code/tests/docs (not the
summary), and to return either unconditional approval or one concrete blocker.

## Verdict: UNCONDITIONAL APPROVAL ×3 (no blockers, no conditions)

| Reviewer | Access | Verdict | Suite run |
| -------- | ------ | ------- | --------- |
| Codex (gpt, read-only) | read-only sandbox | UNCONDITIONAL APPROVAL | could not run Vitest (read-only EROFS) — verified by close reading + SDK source |
| Gemini | yolo | UNCONDITIONAL APPROVAL | `npm run build` clean, `npm test` 1184 pass |
| Grok | always-approve | UNCONDITIONAL APPROVAL | `npm run build` clean, `npm test` 1184 pass (FORCE_COLOR unset) |

Gateway job IDs (deferred-sync): codex `7cbc00e4-8eea-48fb-97f3-55780402e99d`,
gemini `50c0b42f-9f90-4621-a549-8af6a80be291`, grok `01f1c59e-6648-42e0-9310-9f2312941271`.

## Evidence each reviewer cited (independently reproduced)

- **Issue #1 mirror**: all three confirmed `content[0].text` is unchanged
  (`errorMessage`/`finalStdout`/`text`) and `structuredContent.response` is added
  from the same value at `src/index.ts:1309, 3307, 3521`. All confirmed
  `grok_request` uses the 5-arg `server.tool(...)` form with NO `outputSchema`,
  and that the MCP SDK `validateToolOutput` no-ops when `!tool.outputSchema`
  (`node_modules/@modelcontextprotocol/sdk/dist/cjs/server/mcp.js:188-191`).
  All confirmed `grok-sync-content-wire.test.ts` is a real `Client`↔`McpServer`
  round-trip over `InMemoryTransport` (not a handler call), asserting the reply
  in both `content[0].text` and `structuredContent.response`.
- **argv cutover**: confirmed `prepareGrokRequest` interleaves the generated
  run-segments at `index.ts:2994/3000/3027/3042/3043` around the 5 specials, that
  the golden snapshot is byte-identical across special boundaries (incl. repeated
  `--allow`), and that `provider-codegen-grok-parity.test.ts` drives the REAL
  `prepareGrokRequest` (`:48-59`), not a reimplementation. 30 covered flags; 9
  ungenerated documented.
- **schema cutover**: confirmed the 30 fields are removed and replaced by
  `...GROK_GENERATED_SHAPE` (`index.ts:517-520, 6779`); that
  `deriveZodShapeFromGeneration` reproduces describe + `.min(1)` + MAX_TURNS
  bounds (`provider-codegen.ts:140-156`); that the describe snapshot preserves
  the hand-written text; that both files import `zod/v3`; and that enum values
  are single-sourced from `EFFORT_LEVELS`/contract.
- **build/test/lint**: build clean; 1184 tests pass (Gemini + Grok ran it);
  `eslint src/provider-codegen.ts` 0 errors; `index.ts` 5 pre-existing,
  unrelated errors.

## Non-findings (environment artifacts, not code issues)

- Grok/Gemini noted 2 unrelated `cli-entrypoint.test.ts` failures ONLY when
  `FORCE_COLOR` is set in the shell (a Node stderr-warning artifact); the full
  suite passes cleanly without it. Not a regression in scoped code.
- Codex could not execute Vitest under its read-only sandbox (Vite tried to write
  `node_modules/.vite-temp/...` → EROFS); it verified by inspection instead.

None of these are blockers or conditions. Gate satisfied.
