Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description is complete for a search tool: scope, modes, and ranking are specified. Optional filters (part_id, paper_id, include_* flags) are documented in the schema, and the output schema exists, so the description does not need to repeat them. It does not mention pagination behavior, but the page and limit parameters cover that.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.