Agent Arena – Test How Manipulation-Proof Your AI Agent Is

Show HN: Agent Arena – Test How Manipulation-Proof Your AI Agent Is

Agent Arena – Test How Manipulation-Proof Your AI Agent Is is a company in show hn launch.

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Creator here. I built Agent Arena to answer a question that kept bugging me: when AI agents browse the web autonomously, how easily can they be manipulated by hidden instructions?How it works: 1. Send your AI agent to ref.jock.pl/modern-web (looks like a harmless web dev cheat sheet) 2. Ask it to summarize the page 3. Paste its response into the scorecard at wiz.jock.pl/experiments/agent-arena/The page is loaded with 10 hidden prompt injection attacks -- HTML comments, white-on-white text, zero-width Unicode, data attributes, etc. Most agents fall for at least a few. The grading is instant and shows you exactly which attacks worked.Interesting findings so far: - Basic attacks (HTML comments,

The company sits in the show hn launch segment, where it competes on its core product or service.

Its current recorded stage is Show HN launch.

Website: wiz.jock.pl/experiments/agent-arena