Skill Creator

A powerful composite tool for creating and managing Claude Code skills. It serves as both:

1. CLI Tool - A TypeScript/Node.js command-line interface for skill management
2. Claude Code Subagent - An intelligent agent that automates skill creation workflow

Features

Core Capabilities

• 🚀 Automated Skill Creation: Generate skills with proper folder naming (package@version format)
• 📚 Context7 Integration: Download and slice documentation from Context7 with automatic project ID detection
• 🔍 Intelligent Search: ChromaDB-powered semantic search with automatic indexing
• 💾 Dynamic Content Management: Add custom knowledge with deduplication

CLI & Subagent

• 🛠️ Modern TypeScript: Full type safety with ESM modules
• 🎯 Interactive CLI: Professional command-line interface with inquirer prompts
• 🤖 Subagent Mode: Intelligent agent that handles the entire skill creation workflow
• 📦 Flexible Storage: Store skills in project (.claude/skills/) or user directory (~/.claude/skills)

Installation

Install skill-creator

npm install -g skill-creator

Verify Installation

After installation, you can verify that the MCP servers are working:

# Check if Context7 MCP is accessible
skill-creator --help

# The help should show all commands if MCP servers are properly configured

Prerequisites

Before installing skill-creator, make sure you have the required MCP (Model Context Protocol) servers installed for full functionality:

# Install from npm
npm install -g @upstash/context7-mcp

# Or follow installation guide: https://github.com/upstash/context7?tab=readme-ov-file

# Install from npm
npm install -g @chromedevtools/chrome-devtools-mcp

# Or follow installation guide: https://github.com/ChromeDevTools/chrome-devtools-mcp?tab=readme-ov-file

After installing the MCP servers, you need to configure them in your Claude Code settings. Add the following to your Claude Code configuration:

{
  "mcpServers": {
    "context7": {
      "command": "npx",
      "args": ["-y", "@upstash/context7-mcp", "--api-key", "YOUR_CONTEXT7_API_KEY"]
    },
    "chrome-devtools": {
      "command": "npx",
      "args": ["-y", "chrome-devtools-mcp@latest"]
    }
  }
}

Note: The MCP servers are required for full functionality. Without them, some features like Context7 documentation downloading and web-based research may not work properly.

Quick Start

1. Install as CLI Tool

npm install -g skill-creator

2. Setup for Claude Code

# Interactive installation - installs skill-creator to Claude Code
skill-creator init

3. Choose Your Usage Mode

CLI Mode - Full Control

Use commands directly for complete control over the skill creation process.

Subagent Mode - Effortless

Simply describe what you want, and let the subagent handle everything automatically.

User: Use skill-creator subagent to help me create a vitest skill

User: Tell me about vitest testing patterns

The skill-creator subagent will handle the entire workflow automatically.

4. Create a Skill by cli

# Search for packages
skill-creator search "react query"

# Get package information (Options)
skill-creator get-info @tanstack/react-query

# Create skill with custom package name (recommended)
skill-creator create-cc-skill --scope user --name "@tanstack/react-query" --description "React Query for data fetching" @tanstack/react-query@5

# Create skill with interactive prompts
skill-creator create-cc-skill --interactive --description "React Query for data fetching" @tanstack/react-query@5

# Download documentation (automatically builds search index)
skill-creator download-context7 --package @tanstack/react-query /tanstack/react-query

# Search your skill knowledge base
skill-creator search-skill --package @tanstack/react-query "useQuery hook"

Commands

Installation & Setup

| Command | Description | | --------- | ----------------------------------------------------------- | | init | Install skill-creator as Claude Code subagent (interactive) | | init-cc | Install skill-creator as subagent in user directory |

Skill Creation (CLI Mode)

| Command | Description | | ------------------------ | -------------------------------- | | search <keywords> | Search npm packages | | get-info <package> | Get detailed package information | | create-cc-skill <name> | Create a new skill directory |

Content Management

| Command | Description | | -------------------------------- | ----------------------------------------- | | download-context7 <project_id> | Download and slice Context7 documentation | | search-skill <query> | Search in skill knowledge base | | add-skill | Add custom knowledge to skill |

Tip: When using the skill-creator as a subagent, you don't need to remember these commands. Just tell Claude what you want to create, and the subagent will handle the entire workflow automatically.

Options

• --scope <user|current>: Storage location for skills (required)
• --name <name>: Package name for the skill (recommended)
• --pwd <path>: Working directory for skill operations
• --package <name>: Use package name to find skill directory
• --description <description>: Custom description for the skill
• --force: Force overwrite existing files
• --skip-chroma-indexing: Skip automatic ChromaDB index building
• --interactive: Enable interactive prompts

Workflow

Complete Skill Creation Workflow

1. Search Package: Find the right package for your skill

   skill-creator search "state management"

2. Get Package Info: Retrieve detailed information

   skill-creator get-info zustand

3. Create Skill: Set up skill directory (requires --scope, recommended to use --name)

   # With custom package name (recommended)
   skill-creator create-cc-skill --scope current --name zustand --description "Zustand state management"
   
   # With interactive prompts
   skill-creator create-cc-skill --scope current --interactive zustand

4. Download Documentation: Get Context7 docs with automatic indexing

   skill-creator download-context7 --package zustand /zustand

5. Add Custom Knowledge: Enhance with your own content

   skill-creator add-skill --package zustand --title "Best Practices" --content "Your custom notes"

6. Search Knowledge Base: Query your skill

   skill-creator search-skill --package zustand "typescript patterns"

Directory Structure

.claude/skills/
└── package@version/
    ├── assets/
    │   └── references/
    │       ├── context7/     # Auto-sliced Context7 docs
    │       └── user/         # Custom knowledge files
    ├── config.json          # Skill configuration
    └── SKILL.md             # Skill documentation

Development

Prerequisites

Make sure you have the MCP servers installed and configured before development:

# Verify MCP servers are available
npm list -g @upstash/context7-mcp @chromedevtools/chrome-devtools-mcp

Development Setup

# Install dependencies
npm install

# Development mode with watch
npm run dev

# Build TypeScript
npm run build

# Run tests
npm test

# Run tests with coverage
npm run test:coverage

# Lint code
npm run lint

# Type check
npm run type-check

Testing MCP Integration

To test MCP server integration during development:

# Test Context7 integration
skill-creator get-info @upstash/context7

# Test Chrome DevTools integration
skill-creator download-context7 --help

Configuration

Skills are configured via config.json in the skill directory:

{
  "context7LibraryId": "/org/project",
  "searchEngine": {
    "type": "chroma",
    "chromaPath": "./chroma"
  }
}

Architecture

• TypeScript + ESM: Modern JavaScript with full type safety
• ChromaDB Integration: Vector search for intelligent document retrieval
• Context7 API: Automated documentation downloading and slicing
• CLI-first Design: Professional command-line interface
• Modular Architecture: Clean separation of concerns

License

MIT

For detailed subagent usage, see templates/skill-creator.md