Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With 0 parameters, no output schema, and no annotations, the tool is simple enough that the short description is largely adequate. However, because there's no output schema or annotations, some disclosure about what identity fields are returned (email, name, org roles, etc.) and auth failure behavior would strengthen completeness for a tool serving as an auth-context operation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.