What is the 5 Whys skill?

It is a specialized capability for Claude Code that automates the process of finding the underlying cause of a problem through iterative questioning.

How do I use the 5 Whys skill?

Simply invoke the skill when faced with a bug or failure; Claude will then lead a structured investigation to uncover the root cause through five or more levels of questioning.

Does it work for non-technical issues?

Yes, while highly effective for debugging code, it can also analyze process failures, project delays, or team productivity bottlenecks.

What is the difference between immediate and systemic actions?

Immediate actions address the current symptom (the 'quick fix'), while systemic actions change the underlying process or architecture to prevent the problem from recurring.

Can it handle complex problems with multiple causes?

Yes, the skill supports branching analysis when a single problem level has multiple valid contributing factors that need to be explored.

5 Whys Root Cause Analysis

Name: 5 Whys Root Cause Analysis
Author: neurofoo

byneurofoo

•

生産性とワークフロー

Conducts iterative root cause analysis to drill down from surface symptoms to fundamental systemic issues.

The 5 Whys skill empowers Claude Code to perform structured problem-solving using the classic Toyota-inspired root cause analysis technique. It helps engineers move beyond surface-level symptoms of software bugs, system failures, or process bottlenecks by iteratively questioning the cause of each layer. By following a rigorous why-chain, the skill identifies actionable root causes and generates a comprehensive report including immediate fixes, systemic corrective actions, and verification steps to ensure long-term stability.

主な機能

01Categorization of immediate vs. systemic corrective actions

02Structured tabular reporting for clear documentation

03Iterative why-chain analysis to reach actionable root causes

04Hypothesis verification guidelines for factual accuracy

0535 GitHub stars

06Branching logic support for multi-faceted problems

ユースケース

01Debugging recurring production incidents and software bugs

02Investigating team workflow inefficiencies or project delays

03Analyzing failed deployment processes or CI/CD bottlenecks

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add neurofoo/agent-skills 5whys

For use in Claude.ai and ChatGPT

Download Skill