monitoring

name	monitoring
description	Application and server monitoring. Error tracking, log aggregation, alerting, uptime monitoring. Use for production setup. Don't use for development debugging.
model	sonnet
effort	medium
allowed-tools	Read, Write, Edit, Bash, Grep

Production Monitoring

Error Tracking

• Sentry for application errors
• Structured logging (JSON format)
• Error grouping by root cause
• Alert on new error types

Metrics

• Response time (p50, p95, p99)
• Error rate (4xx, 5xx)
• Throughput (requests/sec)
• CPU/Memory/Disk usage

Alerting Rules

• S1 (Critical): service down, data loss -> immediate
• S2 (High): error rate >5%, response >2s -> 15 min
• S3 (Medium): error rate >1%, disk >80% -> 1 hour
• S4 (Low): deprecation warnings -> daily

Health Checks

• /health endpoint on every service
• Database connectivity check
• External dependency checks
• Synthetic monitoring (periodic requests)