# qyrixx

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Hemamalini Yuvaraj](https://cerebralvalley.ai/u/Hemamalini)
- **GitHub:** https://github.com/hemayuva308-rgb/qyrixxsentinel
- **Demo video:** https://youtu.be/EG3kCKz5yDI?si=XuetOhBw2Lb5TCbz
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/5287

Qyrix Sentinel is a Trust-to-Execution Guard for AI agents. Agents can now call real tools, so a poisoned README or skill can make one leak an API key to an unapproved host. Detection alone is not prevention. Sentinel puts a deterministic, default-deny Gate in front of agent tool calls: unknown or unapproved actions are blocked before anything executes, grants are short-lived and single-use, and every decision is written to a hash-linked proof chain that can be verified (tampering with a record makes verification fail). An LLM is used only as an advisory inspector: its verdict never reaches the Gate and cannot allow an action. Prototype stage, not production-ready: MCP and n8n integrations exist, network isolation is required for the guarantees to hold, and adapter evidence is self-reported (E1) unless independently observed.

## More from Meta Global AI Developer Hackathon

- [Primo](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/5284)
- [Disaster Management](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/5285)
- [Tiku Tepi Faith](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/5286)
- [Ep1cGaimer](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/5288)
- [Asoro Technology](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/5289)
- [CollabAI](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/5290)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/5287. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt