{
  "task_id": "L16",
  "title": "Model-job lane: job endpoints and cancel-on-lapse against the Meta Model API",
  "repo": "tessera",
  "kind": "build",
  "effect_class": "write-repo",
  "owner_type": "muse-code",
  "done_when": "make suite BACKEND=http passes T12 against a local server, using a fake Model API in tests",
  "context": [
    "AGENTS.md",
    "conformance-draft/SPEC.md",
    "src/tessera/_jobs.py",
    "conformance-draft/test_model_jobs.py"
  ],
  "constraints": [
    "Read AGENTS.md first; the spec wins over the code",
    "Never edit conformance-draft/ tests or SPEC.md in this task, and never weaken a test",
    "Writes are POST only; a GET on a write path answers 405 and changes nothing",
    "No key, token or credential in any response, page, log or commit",
    "Run make check before committing; one task per branch; do not push",
    "Tests never call the real Model API",
    "The Model API key lives only in the host's secret store",
    "Refuse any model id containing 'contributor'"
  ],
  "budget": {
    "max_model_steps": 200,
    "usd": 3.0
  },
  "depends_on": [
    "L8"
  ],
  "branch": "t/L16-model-job-lane",
  "notes": "Cancel a running job with POST /v1/responses/{id}/cancel when its lease lapses (status cancel_requested)."
}