Alert on signal, not on everything
Monitoring fails in two directions: too little, and you learn about outages from angry customers; too much, and the team stops trusting the alerts. We instrument the signals that actually predict user pain, error rates, latency, saturation, and failed jobs, and tune alerting so a page means something. The dashboards answer the first question of any incident, what changed, quickly, so responders are not starting from a blank screen.



