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AI agent skills for debugging

Debugging skills exist because agents, like people, want to fix the first plausible cause and move on. The useful ones force the sequence: reproduce, isolate, form a hypothesis that predicts something, test that prediction, only then edit. They are worth installing precisely when you are in a hurry, which is exactly when you will not want to use them.

People land here searching for “claude code debugging skill”, “agent skill root cause analysis”, “systematic debugging skill”.

129 debugging skills Refine in search →

How to install a debugging skill

  1. Compare the skills. Read the debugging skills below — each page shows the full SKILL.md, its safety verdict, and the capabilities it declares.
  2. Install it. Run npx skillmds@latest add <owner>/<name>. The CLI writes the skill into every agent directory it detects, or use --agent to pin one.
  3. Use it. Restart your agent. It loads the skill on demand the next time you ask for something that matches — you do not have to name the skill.

What makes a good debugging skill?

Debugging skills exist because agents, like people, want to fix the first plausible cause and move on. The useful ones force the sequence: reproduce, isolate, form a hypothesis that predicts something, test that prediction, only then edit. They are worth installing precisely when you are in a hurry, which is exactly when you will not want to use them.

Every skill listed here is a plain SKILL.md file in the format Anthropic documents for Agent Skills, read unchanged by Cursor, OpenAI Codex and 60+ agents. Each passes a safety review before it is publicly listed; the verdict and declared capabilities are on every skill's page.

Frequently asked questions

What is an agent skill for debugging?

Debugging skills exist because agents, like people, want to fix the first plausible cause and move on. The useful ones force the sequence: reproduce, isolate, form a hypothesis that predicts something, test that prediction, only then edit. They are worth installing precisely when you are in a hurry, which is exactly when you will not want to use them.

How is a debugging skill different from just asking the agent to fix a bug?

Asking for a fix gets you a fix for whatever the agent guessed first. A debugging skill makes it state the hypothesis and the evidence before it touches code, which is what catches the case where the obvious cause is not the real one. The cost is a few extra steps; the payoff is not shipping the wrong fix twice.

Which agents can use these debugging skills?

Any agent that reads SKILL.md files: Claude Code, Claude.ai, Cursor, OpenAI Codex, Windsurf, OpenCode and 60+ others. The format is not vendor-specific, so the same file works everywhere — each agent just keeps its skills in a different directory, listed at /agents.

Are these debugging skills free?

Yes. Searching, reading and installing skills on SkillMD is free and needs no account. Individual skills carry their own licence, shown on each skill's page.