# Debugging

> 系统化调试 4 阶段

- Skill: `wenjunduan/debugging-4` (Agent Skill)
- Install (CLI): `npx skillmds@latest add wenjunduan/debugging-4`
- Raw SKILL.md: https://api.skillmd.com/api/skills/wenjunduan/debugging-4/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: wenjunduan (https://skillmd.com/u/wenjunduan)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/wenjunduan/debugging-4

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# Systematic Debugging

必须按 4 阶段执行, 禁止跳步:

## 1. 复现 — 最小用例, 记录输入/期望/实际
## 2. 定位 — 从错误点向上追溯, 用证据不用直觉
## 3. 修复 — 只改根因, 有对应测试, 禁止 as any / 空 catch
## 4. 验证 — 复现通过 + 全量无回归 + Reflexion: 值得记录?