Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With an output schema present, return values do not need elaboration. However, the description lacks details on error behavior (e.g., 404 if slug not found), case sensitivity, or pagination implications of the 'limit' parameter. Complexity is low, so this is a minor gap, but enough to prevent a 4.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.