root-cause-analysis
Problem solving using Fishbone (Ishikawa) diagrams and 5 Whys technique. Identifies root causes systematically and recommends corrective actions.
Profile →npx skills add majiayu000/claude-skill-registry --skill root-cause-analysis --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Root Cause Analysis Systematic problem solving using Fishbone (Ishikawa) diagrams and 5 Whys technique. Identifies true root causes and recommends effective corrective actions. ## What is Root Cause Analysis? **Root Cause Analysis (RCA)** is a structured approach to identify the fundamental cause(s) of problems, rather than addressing symptoms. Effective RCA prevents problem recurrence. | Approach | Focus | Best For | |----------|-------|----------| | **Fishbone (Ishikawa)** | Brainstorming all potential causes by category | Complex problems with multiple potential causes | | **5 Whys** | Drilling down through cause chains | Problems with linear cause-effect relationships | | **Combined** | Fishbone to identify, 5 Whys to drill down | Comprehensive root cause identification | ## Framework 1: Fishbone (Ishikawa) Diagram ### What is a Fishbone Diagram? A **Fishbone diagram** (also called Ishikawa or cause-and-effect diagram) organizes potential causes into categories, resembling a fish skeleton with the problem as the "head." ```text ┌─────────────────────────────────────────────────────────┐ │ │ Man ──┼──┐ ┌──┼── Method │ │ │ │ │ └─────────────────────┐ ┌───────────────┘ │ │ │ │ │
- What is Root Cause Analysis?
- Framework 1: Fishbone (Ishikawa) Diagram
- What is a Fishbone Diagram?
- The 6M Categories
- Alternative Category Sets
- Fishbone Workflow
- Fishbone Output Format
- Fishbone Mermaid Diagram
- Framework 2: 5 Whys
- What is 5 Whys?
- 5 Whys Workflow
- 5 Whys Best Practices
- Multiple 5 Why Chains
- 5 Whys Output Format
What does the root-cause-analysis skill do?
Problem solving using Fishbone (Ishikawa) diagrams and 5 Whys technique. Identifies root causes systematically and recommends corrective actions.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill root-cause-analysis --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.