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Thanks for this, I’ve been feeling similarly.

I’m working on some Go programs/tools with the explicit goal of describing existing servers in a language neutral manner to try to get some sanity into the mix.

I was reenergized to pick this back up because Google is working on a version so I want to get these tools ready.

Open to ideas and input, have been noodling on it for a bit now, lots not in form to share but figured I’d share early:

https://github.com/tmc/mcp



In the current state you can insert “mcpspy” in front of a server and it intercepts and streams out a plain text format that’s nice for humans and machines. There’s also a replay tool that emulates previous traffic, including in mock client and server modes, and a diffing program that is mcp protocol aware.

Oh, and most importantly, a vim syntax plugin for the .mcp file format.


https://github.com/tmc/mcp/blob/next/cmd/mcpdiff/testdata/sc...

This is what the tests look like, for both the tools and to validate the servers.


I had to take a break from extending, our go LLM wrapper, https://github.com/modfin/bellman with mcp to write the blog entry. So some sort of server-like-thing will be added soon




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