Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a no-parameter read tool with full annotation coverage the bar is modest, but the description still omits what is returned (order object fields, counts, sorting), what the '30 dage' window applies to precisely, and whether results are grouped by the three states. Without an output schema, an agent cannot know the response shape.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.