{
  "title": "Harn Orchestrator Observability",
  "schemaVersion": 39,
  "version": 1,
  "refresh": "30s",
  "panels": [
    {
      "type": "stat",
      "title": "HTTP requests",
      "targets": [
        {
          "expr": "sum(rate(harn_http_requests_total[5m]))"
        }
      ],
      "gridPos": { "x": 0, "y": 0, "w": 6, "h": 4 }
    },
    {
      "type": "timeseries",
      "title": "Dispatch outcomes",
      "targets": [
        {
          "expr": "sum by (outcome) (rate(harn_trigger_dispatched_total[5m]))"
        }
      ],
      "gridPos": { "x": 6, "y": 0, "w": 9, "h": 8 }
    },
    {
      "type": "timeseries",
      "title": "Predicate cost",
      "targets": [
        {
          "expr": "sum by (trigger_id) (rate(harn_trigger_predicate_cost_usd_sum[5m]))"
        }
      ],
      "gridPos": { "x": 15, "y": 0, "w": 9, "h": 8 }
    },
    {
      "type": "timeseries",
      "title": "Worker queue depth",
      "targets": [
        {
          "expr": "sum by (queue) (harn_worker_queue_depth)"
        }
      ],
      "gridPos": { "x": 0, "y": 8, "w": 12, "h": 8 }
    },
    {
      "type": "timeseries",
      "title": "A2A hop latency p95",
      "targets": [
        {
          "expr": "histogram_quantile(0.95, sum by (le, target) (rate(harn_a2a_hop_duration_seconds_bucket[5m])))"
        }
      ],
      "gridPos": { "x": 12, "y": 8, "w": 12, "h": 8 }
    }
  ]
}