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How to test whether a model can tell your MCP tools apart

This story is from 2026-09-25. It is preserved in the archive; the latest stories are on the live feed.

You can read your own tool descriptions all day and not know whether a model can tell them apart. I spent a few weeks measuring 82,549 public MCP tool descriptions, and the most useful thing I learned is that the measurement has a ceiling. Here are two tools from a real server: score_resume "Score…

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  1. 2026-09-25 10:00 · DEV Community — AI
    How to test whether a model can tell your MCP tools apart

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