Pragmatic atomic Javascript operations (b.Click("#foo") => foo.click()) give you speed and stability by trading off realism. Opting back into realism (scroll then emit pointer click event) where you need it is as easy as b.Realistic().Click("#foo").

And it's designed from the ground-up to be agent-friendly. Failure messages include DOM outlines, paths to saved screenshots, and polling traces so agents can pinpoint failures quickly. Visual regression tests produce diff images and textual descriptions that point agents at what changed. A set of Claude Code skills describes best practices for finding and eliminating flakes, and keeping them gone.

Performance numbers: https://github.com/onsi/biloba?tab=readme-ov-file#performanc... Docs: https://github.com/onsi/biloba?tab=readme-ov-file#performanc...