OpenSkill

Model Context Protocol (MCP) server that enables Anthropic Skills to work with any coding agent and client that supports MCP servers. Provides sandboxed skill execution with Docker containers.

Overview

OpenSkill makes Anthropic's Claude Code Skills universally accessible across the AI coding ecosystem. It provides a secure, sandboxed execution environment for skills using Docker containers, enabling any MCP-compatible AI assistant to execute skills safely with full isolation, volume mounting, and customizable Docker images.

Watch the demo video

Key Features

• Universal Compatibility: Use Anthropic Skills with any MCP-compatible AI coding agent
• Sandboxed Execution: Run skills in isolated Docker containers for security
• Pre-configured Environment: Python (uv, pip, poetry, pipenv, Pillow) + Node.js tooling
• Customizable: Support for custom Docker images and container configurations
• MCP Integration: Seamless integration via Model Context Protocol
• Volume Mounting: Access host files within containers
• Performance: Docker image prewarming and container reuse

Usage with MCP Clients

OpenSkill works with any MCP-compatible client. Here are quick setup examples:

Cline

{
  "mcpServers": {
    "openskill-mcp": {
      "disabled": false,
      "command": "openskill",
      "args": ["mcp-serve"]
    }
  }
}

Cursor

Add to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "openskill-mcp": {
      "command": "openskill",
      "args": ["mcp-serve"]
    }
  }
}

Claude Code

{
  "mcpServers": {
    "openskill-mcp": {
      "command": "openskill",
      "args": ["mcp-serve", "--disable-tools", "get-skill"]
    }
  }
}

Other MCP Clients

For Windsurf, VS Code, Zed, Roo Code, Continue, and more, see the detailed configuration guide.

Documentation

For detailed documentation, see packages/openskill/README.md

Development

openskill/
├── packages/
│   └── openskill/     # Main MCP server package
├── nx.json            # Nx configuration
├── pnpm-workspace.yaml  # pnpm workspace configuration
└── tsconfig.base.json  # Base TypeScript configuration

Getting Started

Prerequisites

• Node.js 20+
• Docker (for sandboxed skill execution)
• pnpm (v10.15.1 or later)

Installation

# Install dependencies
pnpm install

# Build the project
pnpm build

Quick Start

# Start the MCP server
node packages/openskill/dist/cli.js mcp-serve --mount $(pwd)

# Or use with custom Docker image
node packages/openskill/dist/cli.js mcp-serve --image my-custom-image:latest

Available Scripts

• pnpm build - Build all projects
• pnpm test - Run tests for all projects
• pnpm lint - Lint all projects
• pnpm graph - View the project dependency graph
• pnpm reset - Reset Nx cache

License

AGPL-3.0

Community

Join our Discord community: https://discord.gg/NsB6q9Vas9