Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple list tool, the description covers the main scope, exclusions, and permission, but it does not explain the 'account' parameter or the shape of the response. Since there is no output schema and only 0% parameter coverage, the description leaves important usage details unexplained, though the tool is otherwise straightforward.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.