{
  "name": "legacy-01 agent unavailable",
  "description": "No heartbeat from legacy-01 within its heartbeat window -- the agent or the host is gone",
  "query": "earliest=-5m host=\"legacy-01\" cairnobs.heartbeat=true",
  "query_language": "spl",
  "condition_type": "absence",
  "eval_interval_seconds": 60,
  "for_minutes": 0,
  "notification_target_id": "__TARGET_PLATFORM__",
  "enabled": true
}