Expert Debugging & Lint Fixing

Overview

This skill provides a systematic debugging playbook for extremely hard bugs that teams struggle to fix. It focuses on reproducing and isolating bugs through hypothesis-driven experiments, fixing root causes, explicitly resolving lint issues and static analysis findings in touched code, and adding tests and guardrails to prevent regressions.

When to Use This Skill

Use this skill for:

• Complex bugs that were not solved by normal debugging approaches
• Flaky or intermittent failures that are difficult to reproduce
• Production-only or environment-specific bugs
• Cases where code changes also need to be lint-clean and align with project lint rules
• Bugs requiring systematic investigation with measurable progress
• Heisenbugs that change behavior when being debugged
• Performance issues, race conditions, or data corruption bugs

Core Principles