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How do you detect capability drift when an MCP server updates its tools?

This story is from 2026-09-15. It is preserved in the archive; the latest stories are on the live feed.

Importing an MCP server is easy to review once. The harder case is the next update, when a familiar server adds a write tool, widens an input schema or starts requesting a new credential. I would snapshot the tool names, descriptions and schemas when the server is approved, then diff that manifest…

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  1. 2026-09-15 08:08 · r/AI_Agents
    How do you detect capability drift when an MCP server updates its tools?

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