Does it support both qualitative and quantitative analysis?

Absolutely. It can perform qualitative analysis to find minimal cut sets and single points of failure, or quantitative analysis to calculate failure probabilities if data is available.

Is the analysis data secure?

Yes. The skill treats all input as data rather than instructions and uses local Python scripts for calculations and file generation, ensuring no network access or external code evaluation.

What is Fault Tree Analysis (FTA)?

FTA is a top-down, deductive failure analysis method that uses Boolean logic to map how combinations of lower-level events lead to a specific undesired system-level event.

When should I use FTA instead of FMEA?

Use FTA (top-down) when you want to analyze the specific causes of a high-level failure. Use FMEA (bottom-up) when you want to catalog all possible failure modes of individual components.

Can this skill generate visual diagrams?

Yes, the skill includes scripts to generate professional SVG fault tree diagrams and HTML reports based on the logic and data provided during the session.

Fault Tree Analysis Expert

Name: Fault Tree Analysis Expert
Author: ddunnock

byddunnock

•

分析と監視

Conducts systematic failure analysis using Boolean logic to identify and mitigate safety risks in complex technical systems.

This skill empowers Claude to perform professional-grade Fault Tree Analysis (FTA), a top-down deductive method used in safety and reliability engineering. It guides users through the entire lifecycle of an analysis—from defining the top-level undesired event and constructing logic trees with AND/OR gates to identifying minimal cut sets and calculating failure probabilities. Whether you are investigating a system incident, reviewing a safety-critical design, or assessing redundancy effectiveness, this skill provides the rigorous framework and automated scripts needed to generate SVG diagrams, HTML reports, and quantitative risk assessments.

主な機能

01Boolean logic modeling using standard AND, OR, and intermediate event gates.

025 GitHub stars

03Automated identification of minimal cut sets and single points of failure.

04Quantitative probability calculations with support for importance measures like Fussell-Vesely.

05Structured Q&A workflow for defining system boundaries and top-level failure events.

06Visual output generation including professional SVG diagrams and comprehensive HTML reports.

ユースケース

01Designing safety-critical systems for automotive, aerospace, or industrial control applications.

02Evaluating the effectiveness of redundancy and barrier management in complex infrastructure.

03Root cause analysis and incident investigation to trace technical system failures to basic events.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add ddunnock/claude-plugins fault-tree-analysis

For use in Claude.ai and ChatGPT

Download Skill