Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (3 parameters, no annotations, but has output schema), the description is reasonably complete. It covers purpose, parameters, and return format. With an output schema present, it doesn't need to detail return values extensively, though more behavioral context would enhance completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.