# GC taking too much time per cycle
- alert: HighGCPauseTime
  expr: rate(go_gc_duration_seconds_sum[5m]) / rate(go_gc_duration_seconds_count[5m]) > 0.01
  for: 10m
  annotations:
    summary: "Average GC pause >10ms — reduce allocations or tune GOGC"

# Goroutine leak
- alert: GoroutineLeak
  expr: go_goroutines > 10000
  for: 5m
  annotations:
    summary: "Goroutine count >10K — check for leaked goroutines"

# Memory approaching container limit
- alert: MemoryNearLimit
  expr: predict_linear(process_resident_memory_bytes[1h], 3600) > <container_limit_bytes>
  for: 15m
  annotations:
    summary: "RSS projected to exceed container limit within 1h"