Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a zero-parameter, no-output-schema listing tool, the description covers the essential information: what is listed, where, and with examples. It could mention what the returned values look like or whether it reflects live page state, but it already says '当前可用,' making it reasonably complete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.