Nyx autonomous testing tool helps developers find AI agent failures in minutes instead of hours through adaptive multi-turn conversations

Nyx is a blackbox testing harness designed to identify failure modes in AI agents that traditional software testing misses, including logic bugs and reasoning failures

Uses multi-turn adaptive conversations and multi-modal testing across voice, text, images, documents, and browser interactions to probe agent behavior

Discovers critical issues like instruction following failures, edge cases, jailbreaks, prompt injection, and tool hijacking typically in under 10 minutes versus hours of manual auditing

Requires no special access to test systems—operates like a regular user would interact with agents—and runs massively parallel by default for efficient testing