monitoring

@learn-automated-testing

Instruments code, defines SLOs, builds dashboards, and writes alerts that fire on user-visible symptoms. Covers Prometheus / Grafana, Datadog, New Relic, OpenTelemetry, Sentry, CloudWatch, Azure Monitor, and Google Cloud Operations. Use when the user says "add metrics", "wire up tracing", "set an SLO", "build a dashboard", "create an alert", "the alerts are noisy", "we have no observability", or "investigate this latency spike".