Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity, no annotations, and an output schema present, the description is complete. It explains what the tool does, how it processes data, output format, parameter usage, and behavioral constraints. With an output schema handling return values, no additional explanation of outputs is needed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.