I built a local-first tool to test financial AI agents against duplicate payments, tool poisoning, and spending rule bypasses. Looking for feedback.

Overview

I've been working on a project called FaultFence , and recently opened up the testing kit for public beta. The idea is simple: if you're building a Python AI agent that handles financial operations (checking balances, triggering payouts, refunds, or checkout flows), how do you test whether it can be tricked into violating financial rules before shipping? I built a local testing kit with 17 financial security scenarios , covering things like duplicate payment retries, tool-result poisonin

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