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tools/list is an API contract, and you are versioning it by accident

This story is from 2026-09-10. It is preserved in the archive; the latest stories are on the live feed.

If you run an MCP server, your tool catalog is a public API. I do not think most of us are treating it like one. Here is the shape of the problem. A client connects, calls tools/list , gets your catalog, and starts using it. Then you rename a tool for clarity. Or you tighten a parameter schema beca…

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  1. 2026-09-10 09:56 · DEV Community — AI
    tools/list is an API contract, and you are versioning it by accident

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