Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description covers purpose, parameters, return fields, and data source. Since an output schema exists, it doesn't need to detail return structure fully. It lacks explicit differentiation from siblings, but the purpose is clear enough for correct selection. Overall, very complete for a 3-parameter read tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.