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#26 by installsCoding & architecturemattpocock/skills

diagnosing-bugs

Systematic diagnosis loop for hard bugs and performance regressions with tight feedback loops

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844K
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This week
37.5K
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Repo stars
276.1K
GitHub
First seen
Jun 4, 2026
on skills.sh
Install
npx skills add https://github.com/mattpocock/skills --skill diagnosing-bugs
Works with Claude Code, Cursor, Codex, GitHub Copilot, Windsurf, Gemini CLI and other agents that read SKILL.md.
What it does

A disciplined approach to debugging complex issues by prioritizing tight pass/fail feedback loops over code inspection. Use when facing hard-to-reproduce bugs, performance regressions, or cryptic failures. Emphasizes building instrumentation and test harnesses before hypothesis testing, with careful redaction of secrets in all artifacts.

  • Constructs tight feedback loops (pass/fail signals) before diving into code exploration
  • Guides systematic bisection and hypothesis testing against reproducible test cases
  • Reads GLOSSARY.md and ADRs to build accurate mental models of affected modules
  • Securely redacts credentials and secrets while capturing diagnostic artifacts for analysis
Source on GitHub ↗On skills.sh ↗