Troubleshooting Application Failures

When your app is breaking and you need to figure out why, this skill digs through CloudWatch logs to find the problem. It discovers relevant log groups, searches for error patterns and stack traces, then does root cause analysis to give you prioritized fixes. The workflow is structured, which is helpful when you're under pressure and need a systematic approach rather than grep-ing blindly through logs. You'll need the right IAM permissions for CloudWatch Logs queries, and it handles the common gotchas like query timeouts on massive log groups by breaking things into smaller chunks.