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MCP rug pulls: when a tool changes after you approved it

Originally published at mcpprobe.tech . A rug pull is a server that shows you one thing when you approve it and serves another later. In MCP the thing that changes is usually a tool definition. This walkthrough shows a minimal example, how the attack works, how mcpprobe's META-02 check catches it b…

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  1. 2026-11-10 23:54 · DEV Community — AI
    MCP rug pulls: when a tool changes after you approved it

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