What this covers

The first net-new live drift surface beyond the original three (OpenAI /
Anthropic / Gemini). The OpenRouter async video-generation proxy
(src/openrouter-video.ts, video-proxy-shared.ts) is shipped on master but
had zero drift coverage. This adds the openrouter-video surface:

• Surface registry — new openrouter-video slug in surface-registry.ts
  pointing at the OpenRouter video handlers, so the drift-report collector
  routes any drift block from this leg to the right source file (exit-2
  auto-fix lane) instead of quarantining it.
• Live models canary (FREE) — listOpenRouterVideoModels authenticates
  with OPENROUTER_API_KEY and hits the public listing endpoint
  GET /api/v1/videos/models, asserting the video-model families aimock's
  proxy mirrors (seedance, sora — the DEFAULT_OPENROUTER_VIDEO_MODELS
  set) are still present. Gated with describe.skipIf(!OPENROUTER_API_KEY).
• Static envelope-shape legs (no key, run in CI) — drive the aimock server
  over HTTP and triangulate the submit response, completed status-poll, and
  models-listing envelopes the proxy emits against hand-authored exemplars.
  These exercise the real handler + triangulate + collector routing path,
  not a unit fake.
• Workflow wiring — OPENROUTER_API_KEY added to the drift-job env: in
  both .github/workflows/test-drift.yml and .github/workflows/fix-drift.yml.

Cost-safe scoping rationale (no paid generation)

Video generation costs real money per job, so nothing here submits a
generation. The daily live-reality check is the models listing endpoint
(free, metadata only). Job-lifecycle envelope shapes are asserted statically
against the mock's own output — no live paid call. A live job would be the only
way to triangulate the content download against reality; that is deliberately
deferred as a follow-up rather than incurring generation cost. Grok Imagine
(xAI) and Veo (Google) live canaries are also deferred — their listing
endpoints live on different hosts and need their own keys.

Red-green proof

The real failure surface is the drift collector / triangulation, not a unit
fake. Structural red-green was captured locally against pnpm run test:drift.

RED — the mock envelope was deliberately diverged by renaming
supported_resolutions → resolutions in handleOpenRouterVideoModels
(src/openrouter-video.ts), then running the leg:

 ❯ src/__tests__/drift/openrouter-video.drift.ts (4 tests | 1 failed | 1 skipped)
   ✓ submit returns { id, polling_url, status }
   ✓ completed status poll returns { id, status, unsigned_urls, usage }
   × models listing returns { data: [ { id, name, supported_* , ... } ] }
     →
API DRIFT DETECTED: OpenRouter video models listing
  Surface: openrouter-video

  1. [critical] LLMOCK DRIFT — field in SDK + real API but missing from mock
     Path:    data[].supported_resolutions
     SDK:     array<string>
     Real:    array<string>
     Mock:    <absent>

  2. [info] MOCK EXTRA FIELD — in mock but not in real API
     Path:    data[].resolutions
     Mock:    array<string>

 Test Files  1 failed (1)
      Tests  1 failed | 2 passed | 1 skipped (4)

The failure carries the Surface: openrouter-video marker, so the collector
routes it structurally — proving the whole triangulate → formatDriftReport →
collector path is exercised.

GREEN — reverted the one-line divergence, re-ran:

 ✓ src/__tests__/drift/openrouter-video.drift.ts (4 tests | 1 skipped) 14ms

 Test Files  1 passed (1)
      Tests  3 passed | 1 skipped (4)

Full suite also green: pnpm run test:drift → 16 passed | 9 skipped files;
drift-collector.test.ts (registry coverage/integrity) → 160 passed; eslint,
prettier --check, and tsdown build all clean.

Live validation dependency (deferred to CI)

The live canary's red-green is deferred to CI: OPENROUTER_API_KEY is not
available in the local agent environment, so faking it was not an option. Once
the secret is mirrored to repo secrets, the drift-live-pr job (and the daily
drift job) will run the live leg. Until then the live canary
describe.skipIf-skips in CI — that is expected, not a failure. This has not
been claimed live-verified; only the structural red-green was run locally.

Notes

• src/__tests__/drift/* + .github/workflows/* only — not in the published
  npm package, so no version bump / CHANGELOG.

🤖 Generated with Claude Code