Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
While the description indicates the tool lists fact names, it does not specify the return format (e.g., array, object), nor does it mention potential edge cases, errors, or sorting/order. Given no output schema is provided, these details are missing, though the core behavior is understandable.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.