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diagnosing-bugs

Diagnosis loop for hard bugs and performance regressions. Use when the user says "diagnose"/"debug this", or reports something broken/throwing/failing/slow.

  • Skills
  • Engineering
  • 0

What it does and how to use it

A skill that teaches Claude Code to do engineering tasks well. It is packaged knowledge the model uses whenever it is relevant.

  1. Install the skill (command above).
  2. In Claude Code, describe what you need - the skill turns on by itself when the context fits.
  3. No commands to memorize: you talk in plain language and the skill does the rest.

Install (Claude Code)

mkdir -p .claude/skills/mattpocock-skills__diagnosing-bugs && curl -fsSL https://doutorai.pt/data/lib/skills__mattpocock-skills__diagnosing-bugs.md -o .claude/skills/mattpocock-skills__diagnosing-bugs/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

---
name: diagnosing-bugs
description: Diagnosis loop for hard bugs and performance regressions. Use when the user says "diagnose"/"debug this", or reports something broken/throwing/failing/slow.
---

# Diagnosing Bugs

A discipline for hard bugs. Skip phases only when explicitly justified.

When exploring the codebase, read `CONTEXT.md` (if it exists) to get a clear mental model of the relevant modules, and check ADRs in the area you're touching.

## Phase 1 - Build a feedback loop

**This is the skill.** Everything else is mechanical. If you have a **tight** pass/fail signal for the bug - on

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