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MCP Tool Idempotency for Safe Retry

Quick answer: AI agents retry a tool call whenever the result is ambiguous, timed out, or an error, and the tool has to tell the agent whether that retry is safe. Read-only tools and keyed, idempotent writes can be replayed without changing the outcome. Unkeyed destructive tools cannot, so they nee…

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  1. 2026-11-07 15:03 · DEV Community — AI
    MCP Tool Idempotency for Safe Retry

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