Think MCP

Think MCP does one thing: it gives Claude a tool to explicitly write down its reasoning mid-task. Instead of the model silently working through a problem, it can call `think` to log a thought, `plan` to sketch out steps, or `criticise` to second-guess itself. The output appears in the conversation, so you see the model's internal monologue. I'd reach for this when I'm debugging a gnarly API integration or asking Claude to refactor a module it's never seen before. The explicit reasoning helps me spot when the model's gone off-piste early, rather than waiting for it to confidently produce nonsense. The plan mode is particularly useful for multi-step tasks: Claude lays out what it intends to do, I can course-correct, then it executes. It's a forcing function for deliberation. The quirks are mostly about expectations. This isn't a magic reasoning upgrade. It's a structured way to make Claude's chain-of-thought visible. If the model doesn't naturally lean towards multi-step reasoning, `think` won't conjure it. You still need to prompt well. The criticise mode can loop endlessly if you're not careful, Claude second-guessing itself into paralysis. I've found it works best when you ask for one round of critique, not open-ended self-doubt. Installation is trivial: `uvx think-mcp` and a few lines in your Claude Desktop config. No environment variables, no API keys. It just works. The repo is lean, the code is readable, and the documentation doesn't oversell. Who shouldn't bother? If you're using Claude for quick one-liners or straightforward tasks, this adds ceremony without benefit. It's for people who already find themselves asking 'wait, why did you do that?' mid-conversation. Researchers, debuggers, anyone doing exploratory work where the reasoning matters as much as the output. For those workflows, it's a small tool that earns its place.