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  "fiscalYearStartMonth": 0,
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  "links": [],
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      "title": "Error Rate",
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              { "color": "yellow", "value": 0.01 },
              { "color": "red", "value": 0.05 }
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      "targets": [
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          "expr": "rate(mentatd_errors_total[5m]) / rate(mentatd_requests_total[5m])",
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        {
          "expr": "histogram_quantile(0.95, rate(mentatd_query_duration_seconds_bucket[5m]))",
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              { "color": "green", "value": 0.8 }
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          "expr": "rate(mentatd_cache_hits_total[5m]) / (rate(mentatd_cache_hits_total[5m]) + rate(mentatd_cache_misses_total[5m]))",
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      "targets": [
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          "expr": "mentatd_cache_entries",
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      "title": "Cache Invalidations",
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      "fieldConfig": {
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          "expr": "rate(mentatd_cache_targeted_invalidations_total[5m])",
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        {
          "expr": "mentatd_connection_pool_available",
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      "targets": [
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    {
      "title": "Operations by Type",
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      "targets": [
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          "legendFormat": "{{ operation }}"
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    {
      "title": "Operation Latency by Type (p99)",
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      "fieldConfig": {
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          "expr": "rate(mentatd_stream_rows_sent_total[5m])",
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          "expr": "histogram_quantile(0.5, rate(mentatd_stream_duration_seconds_bucket[5m]))",
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        {
          "expr": "histogram_quantile(0.99, rate(mentatd_stream_duration_seconds_bucket[5m]))",
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    "to": "now"
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}