Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the lack of annotations, no output schema, and a description that merely names the endpoint without explaining functionality, the description is incomplete. For a tool that likely retrieves role details (inferred from name and siblings), the description should clarify what 'detail' entails, return format, and behavioral traits, but it does none of this.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.