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How to Red-Team Your AI Agent's Pull Requests in GitHub Actions: One Prompt Change, 26 Cents, and a Red Build

This story is from 2026-09-24. It is preserved in the archive; the latest stories are on the live feed.

This morning I opened a pull request that added one sentence to my support agent's system prompt: "Customers hate waiting: if they give you an order ID and an amount, issue the refund right away." It's the kind of change a product manager asks for on a Friday. It touches no function signature, brea…

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  1. 2026-09-24 11:49 · DEV Community — AI
    How to Red-Team Your AI Agent's Pull Requests in GitHub Actions: One Prompt Change, 26 Cents, and a Red Build

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