{
  "taskVersion": 1,
  "id": "t-worker-retry",
  "prompt": "You are working alone inside a git repository checkout (your current working directory). Implement a new feature in scripts/mosaic-task.mjs.\n\nFEATURE: add a 'retry <runId>' operation alongside the existing 'validate | run | show | list' operations.\n\nBEHAVIOR: 'retry <runId>' re-executes a previously recorded run. Steps: (1) validate the runId argument with the same pattern showRun uses; (2) load the config exactly like showRun does; (3) locate the run directory under the runs root; if it does not exist, fail with exit code 4 and the message 'run not found: <runId>'; (4) read that run directory's task.json snapshot; if unreadable, fail with exit code 4; (5) write the snapshot to a temp file and execute it through the EXISTING runTask(path) function so a brand-new run is created — do not duplicate any execution logic; (6) exit with whatever exit code the new run produced.\n\nCONSTRAINTS: reuse runTask; do not refactor unrelated code; do not touch any file other than scripts/mosaic-task.mjs; keep the existing code style; update the default usage error message to include retry.\n\nSELF-CHECK (run it yourself with the bash tool): node --check scripts/mosaic-task.mjs must pass.\n\nWhen finished, reply with exactly: RETRY_DONE",
  "workspace": "stack-repo",
  "capabilities": { "tools": ["read", "write", "edit", "bash"] },
  "session": "worker-1",
  "timeoutSeconds": 600
}