Jev Ultrafast: A browser agent with a dynamic, indexed action space

Jev Ultrafast is a browser agent that completes web tasks using a dynamic, indexed action space where a small language model decides which operation (click, type, select, scroll, etc.) to perform on numbered page elements. The system efficiently executes goals like booking flights in 7.1 seconds by making one API request per decision cycle, consuming structured state rather than screenshots, and validating actions against the actual DOM before execution. The tool is open-source and can be configured with various text models through an OpenRouter-compatible interface.