Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with one optional parameter and an output schema, the description is remarkably complete: it covers service types, rental price ranges, customization lead times, appointment lead times, the full process from measuring to pickup, address, business hours, and third-party disclaimers. The output schema handles return values, so no further explanation is needed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.