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Aws · Testing · Devops / AGENT SKILL
troubleshooting-application-failures
0
Diagnoses application failures by analyzing CloudWatch logs for error patterns, root causes, and actionable fixes.
Troubleshoots failing applications by discovering and analyzing CloudWatch log groups to identify error patterns, root causes, and actionable solutions. Use when an application is experiencing failures and log-based diagnosis is needed.
Understand the trade-offs.
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Original instructions from the publisher’s SKILL.md
# Application Failure Troubleshooting ## Overview Domain expertise for diagnosing application failures through CloudWatch log analysis. Discovers relevant log groups, searches for error patterns and stack traces, performs root cause analysis, and generates prioritized remediation recommendations. ## Troubleshoot a failing application To diagnose and resolve application failures using CloudWatch logs, follow the procedure exactly. See [Application failure troubleshooting procedure](references/application-failure-troubleshooting.md). ## Troubleshooting ### No log groups found Ask the user for specific log group names. Common patterns: `/aws/lambda/function-name`, `/aws/apigateway/api-name`, or custom application log groups. ### Access denied errors Verify AWS credentials have `logs:DescribeLogGroups`, `logs:DescribeLogStreams`, `logs:StartQuery`, and `logs:GetQueryResults` permissions. ### Query timeouts Reduce the time window or limit results. Large log groups may require multiple smaller queries.