{
  "uid": "scrabble-edge",
  "title": "Scrabble — Edge / UX",
  "tags": ["scrabble"],
  "timezone": "",
  "schemaVersion": 39,
  "version": 1,
  "refresh": "30s",
  "time": { "from": "now-6h", "to": "now" },
  "panels": [
    {
      "type": "timeseries",
      "title": "Edge request rate by message type",
      "gridPos": { "h": 8, "w": 12, "x": 0, "y": 0 },
      "fieldConfig": { "defaults": { "unit": "reqps" }, "overrides": [] },
      "datasource": { "type": "prometheus", "uid": "prometheus" },
      "targets": [{ "refId": "A", "expr": "sum(rate(edge_request_duration_count[5m])) by (message_type)", "legendFormat": "{{message_type}}" }]
    },
    {
      "type": "timeseries",
      "title": "Edge p95 latency",
      "gridPos": { "h": 8, "w": 12, "x": 12, "y": 0 },
      "fieldConfig": { "defaults": { "unit": "s" }, "overrides": [] },
      "datasource": { "type": "prometheus", "uid": "prometheus" },
      "targets": [
        { "refId": "A", "expr": "histogram_quantile(0.95, sum(rate(edge_request_duration_bucket[5m])) by (le))", "legendFormat": "p95" },
        { "refId": "B", "expr": "histogram_quantile(0.50, sum(rate(edge_request_duration_bucket[5m])) by (le))", "legendFormat": "p50" }
      ]
    },
    {
      "type": "timeseries",
      "title": "Edge requests by result",
      "gridPos": { "h": 8, "w": 24, "x": 0, "y": 8 },
      "fieldConfig": { "defaults": { "unit": "reqps" }, "overrides": [] },
      "datasource": { "type": "prometheus", "uid": "prometheus" },
      "targets": [{ "refId": "A", "expr": "sum(rate(edge_request_duration_count[5m])) by (result)", "legendFormat": "{{result}}" }]
    },
    {
      "type": "timeseries",
      "title": "Rate limiting — request rate vs rejections",
      "description": "Aggregate only (no per-user labels): total edge request rate against the limiter rejection rate by class. Per-key detail lives in the admin console's Throttled view.",
      "gridPos": { "h": 8, "w": 24, "x": 0, "y": 16 },
      "fieldConfig": { "defaults": { "unit": "reqps" }, "overrides": [] },
      "datasource": { "type": "prometheus", "uid": "prometheus" },
      "targets": [
        { "refId": "A", "expr": "sum(rate(edge_request_duration_count[5m]))", "legendFormat": "requests" },
        { "refId": "B", "expr": "sum(rate(gateway_rate_limited_total[5m])) by (class)", "legendFormat": "rejected · {{class}}" }
      ]
    }
  ]
}