AINewsnow

An email told my AI support agent to refund $900. Here's the guardrail that said no.

I'm building PurseString, an open-source MCP server that lets AI agents spend money safely. I'm in the last few days of the PayPal AI Hackathon (it closes November 12), so this post is about the part I built for it. Last time I wrote about money bugs: retries, floats, card holds. Those are accident…

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  1. 2026-11-08 15:40 · DEV Community — AI
    An email told my AI support agent to refund $900. Here's the guardrail that said no.

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