Serverless Debugging

Systematic debugging methodology for serverless/edge functions where console.log may not appear in logs and traditional debugging tools are unavailable.

When to Use This Skill

• Feature deployed but not triggering (code exists but never executes)
• Console.log statements don't appear in logs
• No visible errors but behavior doesn't match expectations
• Database state doesn't update as expected
• Type coercion or default value bugs
• Async/timing issues in distributed systems

Core Methodology: 4-Phase Approach

Phase 1: Evidence Gathering

Collect evidence from ALL layers before forming hypotheses. Avoid jumping to conclusions.