Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With rich annotations, an output schema, and 100% schema coverage, the description need not explain return structure. It adds valuable context about source, selection logic, and intended use. However, it does not mention when to prefer this tool over sibling payload-stats tools, leaving a small completeness gap.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.