# Debug

> Traces failures from observed symptoms to the first incorrect state transition.

- Skill: `regenrek/debug` (Agent Skill)
- Install (CLI): `npx skillmds@latest add regenrek/debug`
- Raw SKILL.md: https://api.skillmd.com/api/skills/regenrek/debug/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: regenrek (https://skillmd.com/u/regenrek)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/regenrek/debug

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Reproduce the exact error, isolate the owner, and add the smallest useful regression test.