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mutantkit

v1.0.0

Run and interpret MutantKit mutation testing for Swift and Apple-platform projects: check readiness, plan, run, inspect survivors, and gate CI on real test-suite strength rather than line coverage.

CodexClaude Code1 Skill

By juntakiLicense: Apache-2.00 GitHub starsUpdated 1 hour ago

Directory evidence

Runtimes
Codex and Claude Code
Parsed components
1 skill or MCP entry
Source updated
Aug 30, 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 mutantkit for Codex and Claude Code

Installs for the current user
codex plugin marketplace add IchenDEV/agent-plugin-mkt
codex plugin marketplace upgrade agent-plugin-marketplace
codex plugin add mutantkit@agent-plugin-marketplace

Paste and run these commands in a terminal with Codex. 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/juntaki/mutantkit

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The repository root is the plugin root.

Plugin files

mutantkit/
├── .codex-plugin/plugin.json
├── .claude-plugin/plugin.json
└── skills/mutantkit/SKILL.md

Included Skills1

mutantkitskills/mutantkit/SKILL.md

Run and interpret MutantKit mutation testing for Swift and Apple-platform projects — check the environment, plan, run, inspect survivors, and gate CI on real test-suite strength rather than line coverage. Use whenever the user asks about mutation testing, test-suite quality, "are these tests actually testing anything", or mentions mutantkit/muter directly.

Plugin manifests2

.codex-plugin/plugin.json
{
  "name": "mutantkit",
  "version": "1.0.0",
  "description": "Run and interpret MutantKit mutation testing for Swift and Apple-platform projects: check readiness, plan, run, inspect survivors, and gate CI on real test-suite strength rather than line coverage.",
  "author": {
    "name": "juntaki",
    "url": "https://github.com/juntaki"
  },
  "homepage": "https://github.com/juntaki/mutantkit",
  "repository": "https://github.com/juntaki/mutantkit",
  "license": "Apache-2.0",
  "keywords": [
    "mutation-testing",
    "swift",
    "testing",
    "ci",
    "test-quality"
  ],
  "skills": "./skills/",
  "interface": {
    "displayName": "MutantKit",
    "shortDescription": "Mutation testing for Swift and Apple-platform projects: plan, run, and gate CI on real test-suite strength rather than line coverage."
  }
}
.claude-plugin/plugin.json
{
  "name": "mutantkit",
  "displayName": "MutantKit",
  "version": "1.0.0",
  "description": "Run and interpret MutantKit mutation testing for Swift and Apple-platform projects: check readiness, plan, run, inspect survivors, and gate CI on real test-suite strength rather than line coverage.",
  "author": {
    "name": "juntaki",
    "url": "https://github.com/juntaki"
  },
  "homepage": "https://github.com/juntaki/mutantkit",
  "repository": "https://github.com/juntaki/mutantkit",
  "license": "Apache-2.0",
  "keywords": [
    "mutation-testing",
    "swift",
    "testing",
    "ci",
    "test-quality"
  ]
}

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.

[mutantkit on Agent Plugins Marketplace](https://pluginsmp.com/plugins/mutantkit)