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five-whys

Use for incident/bug root-cause analysis, postmortem, recurring-problem diagnosis, or process improvement. Triggers on Chinese phrases 复盘 / 根因 / postmortem / 又坏了 / 老是 / 重复出现 / 这不是第一次 / 为啥总是 / RCA, and English signals "this keeps happening", "RCA", "post-mortem", "incident review". Ask "why?" 3-7 times (5 is average not rule) until hit a process/system/design root that can be changed — not the symptom. Do NOT use for one-off random events (could be noise — observe first), Cynefin Complex-domain problems (5 Whys assumes linear causality, complex systems have multi-cause emergence), teams in blame-mode (Why will become 因为 X 不靠谱 chain), or truly unknowable causes (ML model outputs — use statistics not 5 Whys).

Overview

Use for incident/bug root-cause analysis, postmortem, recurring-problem diagnosis, or process improvement. Triggers on Chinese phrases 复盘 / 根因 / postmortem / 又坏了 / 老是 / 重复出现 / 这不是第一次 / 为啥总是 / RCA, and English signals "this keeps happening", "RCA", "post-mortem", "incident review". Ask "why?" 3-7 times (5 is average not rule) until hit a process/system/design root that can be changed — not the symptom. Do NOT use for one-off random events (could be noise — observe first), Cynefin Complex-domain problems (5 Whys assumes linear causality, complex systems have multi-cause emergence), teams in blame-mode (Why will become 因为 X 不靠谱 chain), or truly unknowable causes (ML model outputs — use statistics not 5 Whys).

Install command
npx skills add https://github.com/jackjin1997/ClawForge --skill five-whys

Copy and paste this command into Claude Code to install the skill

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UpdatedMay 25, 2026 at 07:55
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