Think Tool

A simple Model Context Protocol (MCP) server that enhances AI reasoning by providing a structured thinking environment.

What is Think Tool?

Think Tool gives AI assistants a dedicated “thinking space” to reason through complex problems, providing:

• Structured reasoning for complex tasks
• Verification that planned actions comply with policies
• Custom thinking frameworks for different scenarios

Installation

Using JSR (JavaScript Registry)

# Run directly with Deno
deno run -A jsr:@sterling/think-tool

# Or clone this repo and run locally
git clone https://github.com/sterling/think-tool.git
cd think-tool
deno run -A server.ts

Configure Your AI Assistant

Claude Desktop - Edit claude_desktop_config.json:

{
  "mcpServers": {
    "think-tool": {
      "type": "http",
      "url": "http://localhost:8080/mcp"
    }
  }
}

Cursor - Edit ~/.cursor/mcp_servers.json:

{
  "servers": [
    {
      "name": "Think Tool",
      "enabled": true,
      "server": {
        "type": "http",
        "url": "http://localhost:8080/mcp"
      }
    }
  ]
}

Zed - Edit ~/.config/zed/settings.json:

{
  "assistant": {
    "context_servers": [
      {
        "name": "Think Tool",
        "enabled": true,
        "server": {
          "type": "http",
          "url": "http://localhost:8080/mcp"
        }
      }
    ]
  }
}

Usage

The think tool serves as a scratchpad for AI assistants to:

// Example of using the think tool in your AI conversation
<think_tool_step_1>
  Technical Implementation Framework: 1. REQUIREMENTS: Define specifications and
  acceptance criteria 2. RESEARCH: Gather information from documentation 3.
  ARCHITECTURE: Design clean interfaces with proper separation
</think_tool_step_1>

Technical Details

• Built with Deno and FastMCP
• Uses Zod for TypeScript validation
• Implements the Model Context Protocol (MCP) standard

Troubleshooting

• Check that Deno is properly installed (deno --version)
• For Claude Desktop, check logs at ~/Library/Logs/Claude/mcp*.log (macOS)

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

Self-hosting

For development or direct installation:

# Clone the repository
git clone https://github.com/sterling/think-tool.git
cd think-tool

# Install dependencies
deno cache server.ts

# Run the server
deno run -A server.ts

# For development with hot-reloading
deno task dev

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• Built with FastMCP
• Inspired by Anthropic’s research on structured reasoning for AI systems