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MCP Think Tool Server

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An MCP server implementing the 'think' tool to improve Claude's complex reasoning capabilities.

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MCP Think Tool Server

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

Think Tool Server MCP server

Overview

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

Custom Instructions

Add these custom instructions to Claude to optimize its use of the think tool:

You have access to a "think" tool that provides a dedicated space for structured reasoning. Using this tool significantly improves your performance on complex tasks.

## When to use the think tool

Before taking any action or responding to the user after receiving tool results, use the think tool as a scratchpad to: 
- List the specific rules that apply to the current request 
- Check if all required information is collected 
- Verify that the planned action complies with all policies 
- Iterate over tool results for correctness 
- Analyze complex information from web searches or other tools 
- Plan multi-step approaches before executing them

## Key Use Cases

- **Complex Tool Chains**: When Claude needs to call complex tools and analyze outputs carefully
- **Policy Adherence**: For navigating policy-heavy environments with detailed guidelines
- **Sequential Decision Making**: When each step builds on previous ones and mistakes are costly
- **Multi-step Analysis**: Breaking down complex problems into manageable steps

## Available Tools

- **think**: Record structured reasoning during problem-solving
- **get_thoughts**: Retrieve all recorded thoughts 
- **clear_thoughts**: Reset the thinking process
- **get_thought_stats**: Analyze thinking patterns

## Example Prompt

Using the think tool, solve this multi-step problem:

A train travels at a constant speed of 60 km/h. It departs from station A at 9:00 AM and arrives at station B at 11:30 AM. What is the distance between stations A and B?