MCP Think Tool Server

A Model Context Protocol (MCP) server implementing the “think” tool for improving Claude’s complex reasoning capabilities.

Overview

This MCP server implements the “think” tool as described in Anthropic’s blog post, which provides Claude with a dedicated space for structured thinking during complex problem-solving tasks. The think tool has been shown to significantly improve performance in complex tasks requiring policy adherence and reasoning in long chains of tool calls.

Features

• Structured Thinking Space: Provides Claude with a dedicated place to break down complex problems
• Thought History: Maintains a log of all thoughts with timestamps for reference
• Clean Slate Option: Allows clearing thought history when starting fresh

Installation

Running with npx

npx -y think-tool-mcp

Manual Installation

npm install -g think-tool-mcp

Running on Cursor

Configuring Cursor 🖥️ Note: Requires Cursor version 0.45.6+

To configure Think Tool MCP in Cursor:

1. Open Cursor Settings
2. Go to Features > MCP Servers
3. Click “+ Add New MCP Server”
4. Enter the following:
   • Name: “think-tool-mcp” (or your preferred name)
   • Type: “command”
   • Command: npx -y think-tool-mcp