npm package: @siddhantxh/code-extractor-mcp
Description: MCP server for extracting code from GitHub repositories and Google Colab notebooks
Author: Siddhanth
Latest version: 1.0.0

# Code Extractor MCP

A Model Context Protocol (MCP) server that extracts code and content from GitHub repositories and Google Colab notebooks for LLM ingestion.

## 🚀 Quick Start

### Installation

```bash
npm install -g @siddhantxh/code-extractor-mcp
```

### Setup in AI Tools

#### Cursor IDE
1. Open Cursor Settings → AI → Model Context Protocol
2. Add new server:
```json
{
  "name": "code-extractor",
  "command": "npx",
  "args": ["-y", "@siddhantxh/code-extractor-mcp"],
  "env": {
    "GITHUB_TOKEN": "your_github_token_here"
  }
}
```

#### Claude Desktop
Add to your `claude_desktop_config.json`:
```json
{
  "mcpServers": {
    "code-extractor": {
      "command": "npx",
      "args": ["-y", "@siddhantxh/code-extractor-mcp"],
      "env": {
        "GITHUB_TOKEN": "your_github_token_here"
      }
    }
  }
}
```

## 🔧 Available Tools

### 1. `tree` - Repository Structure
Get the file tree structure of any GitHub repository or Colab notebook.

**Example:**
```
Use the code-extractor tree tool with https://github.com/vercel/next.js
```

### 2. `fetchAllContent` - Extract All Files
Download and format all files from a repository with intelligent filtering.

**Example:**
```
Use code-extractor fetchAllContent for https://github.com/microsoft/vscode excluding "**/*.test.ts,**/node_modules/**"
```

### 3. `fetchAllContentButExclude` - Smart Filtering
Extract files while excluding specific extensions or patterns.

**Example:**
```
Use code-extractor fetchAllContentButExclude for https://github.com/facebook/react excluding extensions: "test.js,spec.ts,.md"
```

### 4. `specificContent` - Individual Files
Get content from a specific file or notebook cell.

**Example:**
```
Use code-extractor specificContent for https://github.com/vercel/next.js with filePath: "packages/next/src/server/next.ts"
```

## 🌐 Supported URLs

- **GitHub Repositories:** `https://github.com/owner/repo`
- **Specific Branches:** `https://github.com/owner/repo/tree/branch-name`
- **Individual Files:** `https://github.com/owner/repo/blob/main/file.js`
- **Colab Notebooks:** `https://colab.research.google.com/github/owner/repo/blob/main/notebook.ipynb`

## 🔑 Authentication

### Required Environment Variable
- `GITHUB_TOKEN` - Your GitHub Personal Access Token

### Get a GitHub Token
1. Go to [GitHub Settings → Developer settings → Personal access tokens](https://github.com/settings/tokens)
2. Click "Generate new token (classic)"
3. Select scopes: `public_repo` (and `repo` for private repositories)
4. Copy the token and add it to your MCP configuration

## ✨ Features

- **🌳 Intelligent Tree View** - Clean repository structure visualization
- **📄 Smart Content Extraction** - Respects `.gitignore` and custom patterns
- **🎯 Flexible Filtering** - Exclude by file type, size, or custom patterns
- **📊 Token Estimation** - Built-in token counting for LLM context planning
- **🔍 Binary File Detection** - Automatically skips images, videos, and other binary files
- **📝 Notebook Support** - Extract individual cells or full Jupyter notebooks

## 🛠️ Usage Examples

### Analyze Repository Structure
```
Show me the structure of the React repository using the tree tool
```

### Extract TypeScript Files Only
```
Get all TypeScript files from https://github.com/microsoft/vscode but exclude test files
```

### Get Specific Component
```
Show me the content of src/components/Button.tsx from https://github.com/user/repo
```

### Extract Colab Notebook
```
Extract the content from this Colab notebook: https://colab.research.google.com/github/tensorflow/docs/blob/master/site/en/tutorials/quickstart/beginner.ipynb
```

## 📊 Rate Limits & Best Practices

- **GitHub API:** 5,000 requests/hour with token, 60/hour without
- **File Size:** Default 64KB limit per file (configurable)
- **Repository Size:** Optimized for repos under 1,000 files
- **Binary Files:** Automatically filtered out (images, videos, etc.)

## 🐛 Troubleshooting

### "0 tools enabled" in Cursor
1. Restart Cursor completely
2. Verify your GitHub token is valid
3. Check that the package is installed: `npm list -g @siddhantxh/code-extractor-mcp`

### "Tool not found" errors
1. Ensure you're using the exact tool names: `tree`, `fetchAllContent`, etc.
2. Check your MCP configuration syntax
3. Verify the package is globally accessible: `which code-extractor-mcp`

### Rate limit errors
1. Make sure you're using a valid GitHub token
2. Consider using exclude patterns to reduce API calls
3. For large repositories, use the `sizeLimitKB` parameter

## 📄 License

MIT License - see [LICENSE](LICENSE) file for details.

## 🤝 Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Test with real repositories
5. Submit a pull request

## 🔗 Links

- [NPM Package](https://www.npmjs.com/package/@siddhantxh/code-extractor-mcp)
- [GitHub Repository](https://github.com/siddhantxh/code-extractor-mcp)
- [Model Context Protocol](https://modelcontextprotocol.io/)
- [Cursor IDE](https://cursor.sh/)
- [Claude Desktop](https://claude.ai/)