{
  "agent": "sentinel",
  "status": "active",
  "current_task": "Heartbeat: System stable. All services active. Harper active. Radar stale. API limits persist.",
  "last_updated": "2026-03-12T17:36:36.000Z",
  "last_heartbeat": "2026-03-12T17:36:36.000Z",
  "progress": 1
}