Lambda Debugging

Overview

Lambda issues waste weeks. This skill prevents guess-and-check debugging by forcing systematic root cause analysis using Lambda-specific patterns learned from production incidents.

Based on: 15 days of production debugging (Oct 29 - Nov 13, 2025), 50 PRs worth of lessons

When to Auto-Activate

MANDATORY activation when user mentions:

• "Lambda is hanging" / "Lambda timeout"
• "Lambda takes X minutes" / "Lambda is slow"
• "Lambda won't start" / "Lambda startup failure"
• "Lambda cold start" / "Lambda IMDS"
• "boto3 hang" / "S3 client hang"
• "subprocess hang" / "capture_output"
• "Lambda logging issue" / "correlation_id"
• "Transaction Pooler" / "port 6543"