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Your Agent's Tool Layer Is a Public API. Design It Like One.

This story is from 2026-10-30. It is preserved in the archive; the latest stories are on the live feed.

The first agent I put in front of real users had eleven tools and a system prompt that said "ask for confirmation before doing anything destructive." It worked in staging for six weeks. On day two in production it issued the same refund three times because the payment API returned a 502, the model…

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  1. 2026-10-30 22:00 · DEV Community — AI
    Your Agent's Tool Layer Is a Public API. Design It Like One.

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