MCP Think Tool Server

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

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 inAnthropic'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.

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 ## How to use the think tool effectively When using the think tool: 1. Break down complex problems into clearly defined steps 2. Identify key facts, constraints, and requirements 3. Check for gaps in information and plan how to fill them 4. Evaluate multiple approaches before choosing one 5. Verify your reasoning for logical errors or biases

To install Think Tool Server for Claude Desktop automatically viaSmithery:

npx -y @smithery/cli install @cgize/claude-mcp-think-tool --client claude

{ "mcpServers": { "think-tool": { "command": "npx", "args": [ "-y", "@cgize/mcp-think-tool" ], "type": "stdio", "pollingInterval": 30000, "startupTimeout": 30000, "restartOnFailure": true } } }

- C:\Users\[username]\AppData\Roaming\Claude\claude_desktop_config.json

If installed globally, you can also use:

{ "mcpServers": { "think-tool": { "command": "claude-mcp-think-tool", "args": [], "type": "stdio", "pollingInterval": 30000, "startupTimeout": 30000, "restartOnFailure": true } } }

- 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

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?

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