Search everything...

Stats

Actions

Available In

m42-meta-toolkit

Name: m42-meta-toolkit
Author: mission42-ai

By mission42-ai

Meta-tooling for creating and managing Claude Code artifacts (skills, commands, subagents, hooks) with quality assurance workflows

npx claudepluginhub mission42-ai/m42-claude-plugins --plugin m42-meta-toolkit

Popularity

Stars

Med: 0·Avg: 285

Installs

Med: 0·Avg: 1

What's Inside

Slash Commands6

Preflight Checks

/create-command

Create quality-assured command with review

Preflight Checks

/create-hook

Create quality-assured hook with review

Preflight Checks

/create-skill

Create quality-assured skill with review

Preflight Checks

/create-subagent

Create quality-reviewed subagent with iteration

Preflight Checks

/optimize-claudemd

Audit and optimize CLAUDE.md files across repository

Agents6

agent-creator

/agent-creator

Creates subagents programmatically when other agents need subagent creation, when batch-creating subagents from specifications, or when quick subagent drafting is needed without /create-subagent's review cycle.

artifact-quality-reviewer

/artifact-quality-reviewer

Reviews Claude Code meta-tooling artifacts (commands, skills, hooks, subagents) using artifact-specific quality criteria from creating-skills, creating-commands, creating-subagents, creating-hooks reference materials. Provides structured quality feedback with scores and actionable improvements. Use when independent review is requested during artifact creation workflows.

claudemd-writer

/claudemd-writer

Create or update CLAUDE.md files from project descriptions or extract learnings from git commits. Use when CLAUDE.md creation/updates needed or when reviewing commits for documentation-worthy patterns.

command-creator

/command-creator

Creates commands programmatically when other agents need command creation, when batch-creating commands from specifications, or when quick command drafting is needed without /create-command's review cycle.

doc-writer

/doc-writer

Create or improve documentation files following AI-ready principles. Use proactively when creating guides, API docs, tutorials, or any documentation that needs to be AI-readable.

Skills7

crafting-agentic-prompts

/skills/crafting-agentic-prompts

Provides prompt engineering best practices for agentic workflows with modern language models. This skill should be used when users need help writing system prompts, improving agent behavior, controlling output formatting, optimizing tool usage patterns, or setting up long-horizon reasoning tasks. Triggers on requests like "write a prompt", "improve agent behavior", "make agent more proactive", "control verbosity", or "setup agentic workflow".

crafting-claudemd

/skills/crafting-claudemd

Domain knowledge for crafting effective CLAUDE.md files. Covers file hierarchy, writing style, content organization, monorepo strategy, anti-patterns, and validation. Includes scripts for scanning project structure and validating files. This skill should be used when creating CLAUDE.md files, reviewing existing CLAUDE.md files, organizing CLAUDE.md for monorepos, or optimizing Claude Code configuration. Triggers on "create CLAUDE.md", "improve CLAUDE.md", "review CLAUDE.md", "CLAUDE.md best practices", "optimize CLAUDE.md", "monorepo CLAUDE.md".

creating-commands

/skills/creating-commands

Guide for creating effective custom slash commands. This skill should be used when users want to create a new slash command (or update an existing slash command) that provides quick, repeatable workflows with preflight checks, skill integration, and subagent delegation.

creating-hooks

/skills/creating-hooks

Guide for creating Claude Code hooks that respond to events during execution. This skill should be used when users want to create or configure hooks for validation, automation, context injection, or workflow control. Triggers on "create a hook", "add a hook", "configure hooks", or "set up automation".

creating-skills

/skills/creating-skills

Guide for creating and reviewing skills. This skill should be used when creating new skills, updating existing skills, or conducting quality reviews (Step 5).

Stats

Version1.2.0

LanguageTypeScript

Stars0

MaintenanceGood

LicenseMIT

Last CommitFeb 5, 2026

AddedFeb 2, 2026

Actions

View on GitHub View README Plugin Marketplace JSON Homepage

Own this plugin?

Verify ownership to unlock analytics, metadata editing, and a verified badge. GitHub access is read-only (username + org membership).

Available In

m42-claude-plugins

Safety Signals

Caution

Uses power tools

Uses Bash, Write, or Edit tools

Runs pre-commands

Contains inline bash commands via ! syntax

README

M42 Claude Plugins

A marketplace of Claude Code plugins for modular development workflows.

Installation

Add this marketplace to Claude Code:

claude marketplace add https://github.com/mission42-ai/m42-claude-plugins

Then install individual plugins:

claude plugin install m42-planning
claude plugin install m42-sprint
claude plugin install m42-task-execution
claude plugin install m42-meta-toolkit
claude plugin install m42-signs
claude plugin install m42-dev

Or install all plugins:

claude plugin install m42-planning m42-sprint m42-task-execution m42-meta-toolkit m42-signs m42-dev

Plugins

m42-planning

Epic and story planning with GitHub integration, gherkin-based acceptance criteria, and structured issue templates.

Features:

Epic and story planning workflows
Gherkin acceptance criteria patterns
GitHub issue templates (epic.yml, story.yml)
DEEP estimation methodology

m42-sprint

Sprint orchestration with ralph-loop driven task queue processing.

Features:

/start-sprint - Initialize new sprint
/add-task - Add tasks to queue (issue, refactor, docs, custom)
/run-sprint - Start ralph-loop execution
/sprint-status - View progress dashboard
/pause-sprint / /resume-sprint - Control execution
/import-tasks - Bulk import from GitHub

m42-task-execution

Reusable 6-phase task execution workflow.

Features:

6-phase workflow (Context → Planning → Execution → Quality → Progress → Learning)
Quality gates (build, typecheck, lint, test)
Learning documentation
Context caching

m42-meta-toolkit

Meta-tooling for creating and managing Claude Code artifacts (skills, commands, subagents, hooks) with quality assurance workflows.

Features:

/create-skill - Create new skills with proper structure and frontmatter
/create-command - Create new slash commands
/create-subagent - Create new subagents with validation
/create-hook - Create new hooks
/scan-claudemd - Scan CLAUDE.md files for issues
/optimize-claudemd - Optimize CLAUDE.md content

m42-signs

Learning extraction and management from session transcripts. Extracts wisdom from session failures and applies them as learnings in CLAUDE.md files.

Features:

/extract - Extract learnings from session transcripts
/review - Review extracted learnings before applying
/apply - Apply approved learnings to CLAUDE.md files
/add - Manually add a learning
/list - List current learnings in backlog
/status - View learning pipeline status

m42-dev

Development utilities for software engineers - specs, planning, and daily practice support. (Early development)

Features:

creating-specs skill - Guide for writing effective specification files

Architecture

Workflow Plugins:
  Planning ──────────────> m42-planning
       │
       ▼
  Sprint ────────────────> m42-sprint
       │
       ▼
  Execution ─────────────> m42-task-execution

Tooling Plugins:
  Meta-tooling ──────────> m42-meta-toolkit
  Learning Loop ─────────> m42-signs
  Dev Utilities ─────────> m42-dev

Each plugin is independent but they compose together for end-to-end automation. Workflow plugins handle the planning-to-execution pipeline. Tooling plugins provide cross-cutting utilities for plugin development, learning management, and engineering practices.

Repository Structure

m42-claude-plugins/
├── .claude-plugin/
│   └── marketplace.json      # Plugin registry
├── plugins/
│   ├── m42-planning/
│   │   ├── .claude-plugin/
│   │   │   └── plugin.json
│   │   ├── skills/
│   │   │   └── epic-story-planning/
│   │   └── templates/
│   ├── m42-sprint/
│   │   ├── .claude-plugin/
│   │   │   └── plugin.json
│   │   ├── commands/
│   │   └── skills/
│   │       └── orchestrating-sprints/
│   ├── m42-task-execution/
│   │   ├── .claude-plugin/
│   │   │   └── plugin.json
│   │   └── skills/
│   │       └── task-execution/
│   ├── m42-meta-toolkit/
│   │   ├── .claude-plugin/
│   │   │   └── plugin.json
│   │   ├── commands/
│   │   ├── agents/
│   │   └── skills/
│   ├── m42-signs/
│   │   ├── .claude-plugin/
│   │   │   └── plugin.json
│   │   ├── commands/
│   │   ├── agents/
│   │   └── skills/
│   └── m42-dev/
│       ├── .claude-plugin/
│       │   └── plugin.json
│       ├── commands/
│       ├── agents/
│       └── skills/
└── README.md

License

MIT

m42-meta-toolkit

Popularity

What's Inside

Confidence

README

M42 Claude Plugins

Installation

Plugins

m42-planning

m42-sprint

m42-task-execution

m42-meta-toolkit

m42-signs

m42-dev

Architecture

Repository Structure

License

Similar Plugins

ecc

c4-architecture

claude-md-management

feature-dev

context7-plugin

octo

More by mission42-ai

m42-sprint

m42-signs

M42 Claude Plugins

Installation

Plugins

m42-planning

m42-sprint

m42-task-execution

m42-meta-toolkit

m42-signs

m42-dev

Architecture

Repository Structure

License

More by mission42-ai

m42-sprint

m42-signs

Popularity

Health & Quality

Similar Plugins

ecc

c4-architecture

claude-md-management

feature-dev

context7-plugin

octo