{
  "phases": [
    {
      "key": "unknown-schema",
      "title": "Unknown schema planned phase",
      "objective": "Prove fatal planned-phase failures clean up every session.",
      "roles": ["spec_writer"],
      "expectedArtifact": {
        "path": "artifacts/unknown-schema.json",
        "schema": "dev/unknown-schema@1"
      },
      "gates": [],
      "tasks": [
        {
          "id": "TASK-1",
          "title": "Write unknown schema artifact",
          "role": "spec_writer",
          "writeSet": ["src/**"],
          "dependsOn": []
        }
      ]
    }
  ]
}