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How to Catch MCP Tool Schema Drift Before an Agent Calls Production

This story is from 2026-08-22. It is preserved in the archive; the latest stories are on the live feed.

Editorial illustration. It explains the concept; it is not experimental evidence. An MCP server can pass a happy-path demo and still ship a contract change that makes an agent less predictable. A tool name gains a space. An inputSchema disappears during a refactor. A generated list comes back in a…

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  1. 2026-08-22 17:04 · DEV Community — AI
    How to Catch MCP Tool Schema Drift Before an Agent Calls Production

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