mcp-think-tool

Provides an MCP (Model Context Protocol) server that implements Anthropic's "think" tool, giving the model a structured thinking space, optional thought-history clearing, and basic metadata/statistics about thinking.

Evaluated Mar 30, 2026 (22d ago)

Repo ↗ Ai Ml mcp claude reasoning tooling stdio python

⚙ Agent Friendliness

/ 100

Can an agent use this?

🔒 Security

/ 100

Is it safe for agents?

⚡ Reliability

/ 100

Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality

Documentation

Error Messages

Auth Simplicity

100

Rate Limits

🔒 Security

TLS Enforcement

Auth Strength

Scope Granularity

Dep. Hygiene

Secret Handling

Uses MCP stdio per README, so TLS/transport security is not described. No authentication/authorization model is documented. The tool mentions thought-history logging, but privacy/storage/retention and whether contents are persisted or exposed in logs is not clarified. Dependency health and CVE status cannot be assessed from provided manifest/README.

⚡ Reliability

Uptime/SLA

Version Stability

Breaking Changes

Error Recovery

Best When

You control the local/hosted environment running the MCP stdio server and want Claude tooling to have a dedicated think/reasoning mechanism.

Avoid When

You require documented rate limits, robust error-code guidance, fine-grained access control, or guarantees about persistence/privacy of "thought history".

Use Cases

• Improving complex multi-step reasoning in Claude-like workflows via an MCP tool
• Tool-assisted research/planning where models benefit from a dedicated reasoning space
• Workflow integration for Claude Desktop/Cursor using an MCP stdio server

Not For

• General-purpose public API access to store or retrieve sensitive data
• Use cases requiring strong authentication/authorization boundaries between multiple tenants
• Environments needing documented retry/idempotency semantics for operations

Interface

REST API

GraphQL

gRPC

MCP Server

Yes

SDK

Webhooks

Authentication

Methods: No explicit authentication documented (stdio MCP usage implied)

OAuth: No Scopes: No

README does not describe authentication; typical MCP stdio deployments are local-process based, so auth boundaries are not addressed in the provided docs.

Pricing

Free tier: No

Requires CC: No

No pricing information provided; appears to be an open-source package installable via PyPI/Docker.

Agent Metadata

Pagination

none

Idempotent

False

Retry Guidance

Not documented

Known Gotchas

⚠ No documented API/schema details for the MCP tool in the provided README, so agent developers may need to inspect the server implementation for exact tool names/inputs/outputs.
⚠ Thought history persistence/privacy behavior is not documented; clearing is mentioned, but storage/logging details are unknown.
⚠ When using Docker with stdio MCP, agent/client configuration must correctly wire stdin/stdout and runtime options.

Alternatives

Use Anthropic/Claude "think tool" features directly (if available in your client) without an MCP wrapper Implement a minimal MCP tool using the MCP SDK/framework for your own tool logic Other MCP servers that implement different structured reasoning or planning utilities

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Scores are editorial opinions as of 2026-03-30.