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debuggingtools

mutation-testing

Name: mutation-testing
Author: secondsky

Validate test effectiveness with mutation testing using Stryker (TypeScript/JavaScript) and mutmut (Python). Find weak tests that pass despite code mutations. Use to improve test quality.

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maintainer

secondsky

Updated 1/18/2026

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quick start

Installation and usage

Validate test effectiveness with mutation testing using Stryker (TypeScript/JavaScript) and mutmut (Python). Find weak tests that pass despite code mutations. Use to improve test quality.

Installation

$ install --globalskills.sh

Usage

Once installed, you can use this skill by running the following command in your terminal:

skills use mutation-testing