5-whys-analysis

Identify software problem root causes through structured 5-Whys analysis.

Updated May 24, 2026
One-click install
npx skills add https://github.com/empty-can/cc-relative-info --skill 5-whys-analysis
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: 5-whys-analysis
Source: https://github.com/empty-can/cc-relative-info/tree/main/.claude/skills/5-whys
Command: npx skills add https://github.com/empty-can/cc-relative-info --skill 5-whys-analysis

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps uncover the true root cause behind bugs, incidents, regressions, and recurring failures so you can fix the underlying issue instead of repeatedly treating symptoms.

Core Features & Use Cases

  • Structured Root Cause Analysis: Guides a step-by-step 5-Whys investigation from clear problem definition through causal chain validation.
  • Evidence-Based Reasoning: Requires each why-answer to be supported by logs, metrics, code inspection, or other verifiable evidence.
  • Action-Oriented Outcomes: Produces immediate containment actions, long-term preventive measures, and detection improvements to reduce recurrence.
  • Use Cases: Useful for production incidents, performance regressions, repeated deployment failures, and postmortems where the team needs defensible root cause analysis without falling into blame or vague explanations.

Quick Start

Ask the AI to run a 5-Whys analysis on your incident or bug, including the problem statement, evidence for each why, the root cause category, and concrete prevention actions.

Frequently Asked Questions about 5-whys-analysis

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I find the root cause of a production incident instead of just fixing symptoms?

Root cause analysis for a production incident requires structured 5-Whys analysis, tracing a concrete problem statement through an evidence-backed causal chain to identify the true underlying issue and prevent repeat failures.

What is the best way to run a 5-Whys analysis for a performance regression?

A 5-Whys analysis for a performance regression works by iteratively asking why the drop occurred, validating each answer with logs or metrics, and ending with actionable immediate, preventive, and detection countermeasures.

How do I write a postmortem that prevents recurring debugging issues?

Writing a postmortem that prevents recurring debugging issues involves applying reverse validation to your why-chain, ensuring every causal step is evidence-backed, and designing specific recurrence prevention countermeasures.

Can I use 5-Whys analysis for unresolved bugs without falling into blame?

Yes, 5-Whys analysis for unresolved bugs focuses on evidence-based reasoning from logs, metrics, and code inspection, producing defensible root cause categories and action-oriented outcomes without assigning blame.

What evidence do I need for a structured problem analysis of a deployment failure?

Structured problem analysis of a deployment failure requires verifiable evidence such as logs, metrics, or code inspection to support each why-answer, enabling reverse validation of the causal chain.

When should I not use 5-Whys for incident investigation?

5-Whys for incident investigation is less effective when you lack a concrete problem statement or verifiable evidence, as the technique requires evidence-backed causal steps and reverse validation to produce defensible root causes.