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022-root-cause-analysis

022-root-cause-analysis

github.com/jabrenaDevelopment456125 installsUpdated 1d ago
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About 022-root-cause-analysis

An interactive skill for finding evidenced root causes and constraints using structured causal-analysis methods. It is for problem investigation and Functional Specification work, and flags gaps instead of guessing.

Key features

  1. 01Five Whys causal chains
  2. 02Fishbone cause categories
  3. 03Current Reality Tree
  4. 04Constraint identification
  5. 05Technique selection by complexity
  6. 06Root-cause findings for specifications

Use cases

  1. 01Trace a symptom to an evidenced cause
  2. 02Organize causes across dimensions
  3. 03Connect symptoms to shared core problems
  4. 04Identify what limits the current state

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/jabrena/plinth --skill 022-root-cause-analysis

After installing, type/022-root-cause-analysisin Claude Code to confirm it loaded.

Bundled filesreferences/022-root-cause-analysis.md

Details

From the project README

Root Cause Analysis

Guide the identification of root causes, not symptoms, for a framed problem, using Five Whys, Fishbone (Ishikawa), Current Reality Tree, and constraint identification. This is an interactive SKILL.

What is covered in this Skill?

  • Five Whys for a linear causal chain from a symptom to a root cause
  • Fishbone (Ishikawa) for categorized candidate causes across multiple dimensions
  • Current Reality Tree for interconnected causes and effects with a small number of core problems
  • Constraint identification for the limiting factor holding the current state in place
  • Choosing the technique(s) proportionate to the problem's complexity
  • Feeding root-cause findings into 023-assumption-analysis and the remaining Functional Specification lenses

Constraints

Distinguish root causes from symptoms before recommending a fix. When this technique is orchestrated by another workflow, the orchestrator owns clarifying-question sequencing; when applied standalone, ask directly.

  • MUST read references/022-root-cause-analysis.md before applying Root Cause Analysis guidance
  • MUST distinguish a symptom (an observed effect) from a root cause (the condition that produces it)
  • MUST apply Five Whys as a chain of "why" questions grounded in evidence from the problem frame, not assumption
  • MUST apply Fishbone to organize candidate causes into categories (for example people, process, technology, environment) when more than one causal dimension is plausible
  • MUST apply Current Reality Tree when multiple symptoms may share one or a small number of core problems connected by cause-effect relationships
  • MUST identify the constraint limiting the current state, not only the most visible cause
  • MUST NOT invent a root cause when the available evidence is vague or ambiguous; flag the gap for a clarifying question instead

When to use this skill

  • Find the root cause of this problem
  • Apply Five Whys to this issue
  • Build a Fishbone diagram for this problem
  • Use Current Reality Tree to connect these symptoms
  • Identify the constraint limiting the current state
  • Draft the Root Cause Analysis section of a Functional Specification

Workflow

  1. Read the Reference

Read references/022-root-cause-analysis.md, then identify the symptom(s) evidenced by the problem frame.

  1. Apply Five Whys

Chain "why" questions from the symptom toward an evidenced root cause, stopping when further "why" steps would require guessing.

  1. Apply Fishbone When Multiple Dimensions Are Plausible

Organize candidate causes into categories when more than one causal dimension (people, process, technology, environment) is plausible.

  1. Apply Current Reality Tree When Symptoms Interconnect

Connect multiple symptoms to a small number of shared core problems through cause-effect relationships when the symptoms appear related.

  1. Identify the Constraint

Name the constraint limiting the current state, distinct from the most visible or most recently reported cause.

  1. Report the Root Cause Findings

Report findings using Five Whys, Fishbone, Current Reality Tree, and the identified constraint, and flag any finding left open pending a clarifying answer.

Reference

For detailed guidance, examples, and constraints, see references/022-root-cause-analysis.md.

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