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mutation-test-runner

v1.27.0

Mutation testing to validate test quality by introducing code changes and verifying tests catch them

Claude Code1 Skill

By Claude Code PluginsLicense: MIT2.7k GitHub starsUpdated 13 hours ago

Directory evidence

Runtimes
Claude Code
Parsed components
1 skill or MCP entry
Source updated
Aug 29, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install plugin

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install mutation-test-runner@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/jeremylongshore/tons-of-skills-marketplace

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/testing/mutation-test-runner/.

Plugin files

plugins/testing/mutation-test-runner/
├── .claude-plugin/plugin.json
└── skills/running-mutation-tests/SKILL.md

Included Skills1

running-mutation-testsskills/running-mutation-tests/SKILL.md

Execute mutation testing to evaluate test suite effectiveness. Use when performing specialized testing. Trigger with phrases like "run mutation tests", "test the tests", or "validate test effectiveness".

Plugin manifests1

plugins/testing/mutation-test-runner/.claude-plugin/plugin.json
{
  "name": "mutation-test-runner",
  "version": "1.27.0",
  "description": "Mutation testing to validate test quality by introducing code changes and verifying tests catch them",
  "author": {
    "name": "Claude Code Plugins",
    "email": "[email protected]"
  },
  "repository": "https://github.com/jeremylongshore/claude-code-plugins",
  "license": "MIT",
  "keywords": [
    "testing",
    "mutation-testing",
    "test-quality",
    "stryker",
    "pitest",
    "agent-skills"
  ]
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[mutation-test-runner on Agent Plugins Marketplace](https://pluginsmp.com/plugins/mutation-test-runner)