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Immune-Harness

Built at The Harness Engineering & Model Wrangling Hackathon · Sep 26, 2026 · New York, NY

Demo video · docs.google.com/…

Can we stop AI agents from going rogue before they take over the world? Immune Harness is a security layer for AI agents. It checks every tool call before it runs and blocks the risky ones. When Jev catches a new attack, the harness writes a new policy, or rewrites an existing one to cover the new variant, and tests it before it goes live. Every attack it blocks makes it stronger, so the next attempt is stopped instantly. Powered by Jev for risk detection and MongoDB Atlas for live policy updates shared across every agent.

Team