Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
This is a simple, optional-parameter, read-only sampling tool with a full output schema and complete parameter documentation. The description supplies the missing operational context—curated, free, quota-free, exploratory—so an agent has everything needed to invoke it correctly without additional inference.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.