The planner can plan out multiple web actions at once, which Moondream can then execute in sequence on its own. So Moondream is never deciding how to execute more than one web action in a single prompt.

What this really means for developers writing the tests is you don't really have to worry about it. A "step" in Magnitude can map to any number of web actions dynamically based on the description, and the agents will figure out how to do it repeatably.