Can it help reduce flaky tests?

Yes, it identifies common causes of flakiness such as timing dependencies, improper async handling, and shared mutable state, providing strategies to fix them.

What is mutation testing and how is it used here?

Mutation testing modifies your source code to see if tests catch the changes. This skill helps you set up tools like Stryker and interpret results to improve test effectiveness.

How does it measure test maintainability?

It evaluates tests based on structure (AAA/GWT), naming conventions, DRY principles, and the presence of anti-patterns like 'mystery guest' or 'assertion roulette'.

Does this skill support specific frameworks like Jest or Playwright?

This skill provides framework-agnostic principles and analysis. For implementation-specific code, it works best alongside specialized skills like jest-testing or playwright-testing.

Test Quality Analyst

Name: Test Quality Analyst
Author: C0ntr0lledCha0s

byC0ntr0lledCha0s

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セキュリティとテスト

Analyzes and improves test suites through framework-agnostic metrics, reliability assessments, and anti-pattern detection.

The Test Quality Analyst skill transforms Claude into a specialized consultant for software verification, focusing on the effectiveness and health of your testing infrastructure. It moves beyond simple line coverage by evaluating deep architectural patterns, identifying brittle or flaky tests, and implementing advanced techniques like mutation testing to ensure tests actually catch bugs. By assessing maintainability, reliability, and the balance of the test pyramid, this skill provides actionable recommendations to reduce technical debt and increase confidence in your deployment pipeline.

主な機能

01Framework-agnostic test quality scoring and metrics

021 GitHub stars

03Detection of testing anti-patterns like flakiness and over-mocking

04Advanced coverage analysis and mutation testing strategies

05Maintainability scoring based on AAA and GWT patterns

06Reliability audits to identify timing dependencies and isolation issues

ユースケース

01Auditing a legacy test suite to identify and fix flaky tests

02Refactoring test suites to improve readability and reduce maintenance overhead

03Improving test effectiveness by implementing mutation testing via Stryker

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add c0ntr0lledcha0s/claude-code-plugin-automations analyzing-test-quality

For use in Claude.ai and ChatGPT

Download Skill