Cloudwatch

This handles AWS CloudWatch operations for monitoring your infrastructure and applications. You'll reach for it when setting up metric alarms, querying logs with Insights, publishing custom metrics, or building dashboards. The skill covers the practical stuff: creating CPU and error rate alarms, writing CloudWatch Insights queries to find errors in Lambda logs, setting up metric filters to extract data from log patterns, and publishing custom application metrics with proper dimensions. One thing to note is that CloudWatch's pricing model means you need to be intentional about metric cardinality and log retention, so the best practices section on avoiding metric explosion and setting retention policies is worth reading before you start instrumenting everything.