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My Idempotency Key Was a Timestamp, So the Tool Ran Twice

Duplicate tool calls are a data-model problem, not a model problem. I learned that after one job created the same row twice. The fix was six lines and one test. The symptom came back clean A nightly agent run posted a "row created" webhook. The downstream counter showed two rows for one request. No…

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  1. 2026-11-06 17:05 · DEV Community — AI
    My Idempotency Key Was a Timestamp, So the Tool Ran Twice

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