Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With no output schema and no annotations, the description alone must tell the agent what 'detailed information' entails, but it does not. Given the large set of sibling collection tools, an agent cannot confidently know whether this returns metadata, contents, ancestors, or some other shape. The tool is simple, but the ambiguity makes it incomplete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.