Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given an output schema exists, the description need not detail return values. It covers purpose, usage context, simulation flag, size cap, and auth. It lacks a few details like how access_token vs session_request_id are handled, but those are fully documented in the schema, so it is nearly complete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.