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SaveBell

Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

SaveBell — Demo video

SaveBell watches AI security threats for you, so you don’t have to. Every day, new AI attacks and vulnerabilities show up across the internet. Even big companies struggle to keep up. Small teams and individual developers usually hear about them too late. SaveBell reads security advisories, AI-security blogs and arXiv around the clock. When something new comes out, it checks whether it affects the code and skills in your repository. It gives one of three verdicts: affected, not affected, or unclear and needs checking. If your code is affected, it drafts a fix you can approve with one click. It also fact-checks its own report. Every line it cites is re-read from the real file, and the final verdict follows a fixed rule. If the evidence isn’t there, it says “unclear” instead of guessing.

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