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prp-debug

Identify and verify code issue root causes using the 5 Whys methodology.

2|Updated Feb 3, 2026
Search Tags:#code analysis#debugging#root cause analysis#5 Whys#issue resolution
One-click install
npx skills add https://github.com/gobikom/prp-framework --skill prp-debug
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: prp-debug
Source: https://github.com/gobikom/prp-framework/tree/main/adapters/codex/prp-debug
Command: npx skills add https://github.com/gobikom/prp-framework --skill prp-debug

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

The prp-debug skill solves the problem of identifying the root cause of issues in code or systems by employing the 5 Whys methodology.

Core Features & Use Cases

  • Root Cause Analysis: Provides evidence-backed root cause analysis for issues.
  • 5 Whys Protocol: Utilizes a structured 5 Whys protocol for deep issue analysis.
  • Input Parsing: Automatically determines input type and mode (quick or deep).
  • Hypothesis Generation: Generates and ranks hypotheses based on the symptom.
  • Evidence Gathering: Collects evidence for hypotheses using various techniques.
  • Validation: Confirms the root cause with thorough testing and documentation.
  • Report Generation: Creates a detailed report outlining the root cause analysis.

Quick Start

To begin root cause analysis on an issue, run the command: /prp-debug "TypeError: Cannot read property 'id' of undefined at UserService.ts:45 (no quotes)

Frequently Asked Questions about prp-debug

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

FAQPage Schema
How do I find the root cause of a code error?▼

The 5 Whys methodology helps you find the root cause of a code error by iteratively asking why a symptom occurred. It enables developers to generate hypotheses, gather evidence, and verify the exact technical failure point in complex software systems.

What is the 5 Whys methodology for debugging software?▼

The 5 Whys debugging methodology is a structured protocol that repeatedly asks why an issue occurs to uncover its foundational cause. It transforms surface-level symptoms into verified root causes through systematic hypothesis generation and evidence gathering.

How do I perform root cause analysis using git history?▼

You perform root cause analysis using git history by submitting an error string for deep analysis. The system leverages git history to trace code changes, gather evidence for ranked hypotheses, and validate the underlying fault.

Do I need git history for issue resolution with the 5 Whys protocol?▼

Yes, git history is required for deep issue resolution using the 5 Whys protocol. Accessing commit history allows the analysis to gather sufficient evidence to accurately identify and verify the root cause of technical issues.

Can I analyze a TypeError quickly or does it require deep analysis?▼

You can analyze a TypeError using either quick or deep modes, determined automatically by the input parser. Quick mode offers immediate insights, while deep analysis leverages git history to generate a detailed report outlining the verified root cause.

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