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How to authorize every MCP tool call (not just the login)

Most MCP security write-ups stop at the login. The client gets an OAuth token, the server accepts it, done. That answers one question: who is the user? It doesn't answer the one that matters once an agent is running: should this agent call this tool, with these arguments, for this person, right now…

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  1. 2026-11-05 04:21 · DEV Community — AI
    How to authorize every MCP tool call (not just the login)

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