Agent skill · software engineering · jeremylongshore
mutation-test-runner
Run mutation test runner operations. Auto-activating skill for Test
Why this skill is useful
Adds specific patterns and configurations for mutation testing that the AI wouldn't reliably generate on its own.
What it needs
Requires bash, grep installed locally. About 1k tokens when loaded. Last updated 2026-08-07. 2,604 stars on the source repository.
What this skill does
Mutation Test Runner Overview This skill provides automated assistance for mutation test runner tasks within the Test Automation domain. When to Use This skill activates automatically when you: Mention "mutation test runner" in your request Ask about mutation test runner patterns or best practices Need help with test automation skills covering unit testing, integration testing, mocking, and test framework configuration. Instructions 1. Provides step-by-step guidance for mutation test runner 2. Follows industry best practices and patterns 3. Generates production-ready code and configurations 4. Validates outputs against common standards Examples Example: Basic Usage Request: "Help me with mutation test runner" Result: Provides step-by-step guidance and generates appropriate configurations Prerequisites Relevant development environment configured Access to necessary tools and services Basic understanding of test automation concepts Output Generated configurations and code Best practice recommendations Validation results Error Handling Error Cause Solution ------- ------- ---------- Configuration invalid Missing required fields Check documentation for required parameters Tool not found Dependency not installed Install required tools per prerequisites Permission denied Insufficient access Verify credentials and permissions Resources Official documentation for related tools Best practices guides Community examples and tutorials Related Skills Part of the Test Automation skill category. Tags: testing, jest, pytest, mocking, tdd
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills jeremylongshore/mutation-test-runner