groups:
  - name: blockchain-node
    rules:
      - alert: BlockProposalStalled
        expr: (block_interval_seconds_sum / block_interval_seconds_count) > 5
        for: 1m
        labels:
          severity: warning
        annotations:
          summary: "Block production interval exceeded 5s"
          description: |
            Average block interval is {{ $value }} seconds, exceeding the expected cadence.

      - alert: BlockProposalDown
        expr: (block_interval_seconds_sum / block_interval_seconds_count) > 10
        for: 2m
        labels:
          severity: critical
        annotations:
          summary: "Block production halted"
          description: |
            Block intervals have spiked above 10 seconds for more than two minutes.
            Check proposer loop and database state.

      - alert: MinerErrorsDetected
        expr: miner_error_rate > 0
        for: 1m
        labels:
          severity: critical
        annotations:
          summary: "Miner mock reporting errors"
          description: |
            The miner mock error gauge is {{ $value }}. Investigate miner telemetry.

      - alert: CoordinatorReceiptDrop
        expr: rate(miner_receipts_attested_total[5m]) == 0
        for: 5m
        labels:
          severity: warning
        annotations:
          summary: "No receipts attested in 5 minutes"
          description: |
            Receipt attestations ceased during the last five minutes. Inspect coordinator connectivity.

      - alert: RpcErrorsSpiking
        expr: increase(rpc_request_failures_total[5m]) > 0
        for: 5m
        labels:
          severity: warning
        annotations:
          summary: "RPC error spike detected"
          description: |
            RPC request failures have increased during the last five minutes. Investigate rpc_request_failures_total for details.