# Team AgentArena

- **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:** [Md Mahabube Alahi Atik](https://cerebralvalley.ai/u/AgenticEngineer)
- **GitHub:** https://github.com/Atikelahi96/agentarena
- **Demo video:** https://youtu.be/wmWS55_JlaE
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1015

AgentArena is a live red-teaming platform for AI agents. It takes a real Meta model, turns it into a tool-using agent, and attacks it with indirect prompt injection: hidden instructions planted inside the data the agent reads, such as tool outputs, documents, and even screenshots.

In the live Arena you run the same model, same task, and same attack against two agents side by side. One is undefended, one is protected by AgentShield, our defense-in-depth runtime guard. You watch them decide in real time. The undefended agent follows the attacker and leaks or corrupts the output. AgentShield strips the injection before it runs, so the task still completes safely. It even catches attacks hidden inside images, by transcribing untrusted screenshots with Meta's vision model and removing the instruction.

Every match produces a full, inspectable trace and a deterministic score with no LLM judge, backed by Wilson confidence intervals across repeated runs. The result maps directly to OWASP LLM Top 10, OWASP Agentic, MITRE ATLAS, the EU AI Act, and NIST AI RMF, so it is evidence you could hand a regulator. Built on Meta's open models with FastAPI, Next.js, and Postgres.

## More from Meta Global AI Developer Hackathon

- [Paycheck Committee](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1012)
- [Retake Coach](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1013)
- [Openwist](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1014)
- [ElasticShelf](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1016)
- [shun](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1017)
- [Frogless](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1018)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1015. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt