Debugging Skills A collection of systematic debugging methodologies that ensure thorough investigation before attempting fixes. Available Sub-Skills Systematic Debugging Location: Four-phase debugging framework: Root Cause Investigation → Pattern Analysis → Hypothesis Testing → Implementation. The iron law: NO FIXES WITHOUT ROOT CAUSE INVESTIGATION FIRST. Root Cause Tracing Location: Trace bugs backward through the call stack to find the original trigger. Don't fix symptoms - find where invalid data originated and fix at the source. Defense-in-Depth Validation Location: Validate at every laye…