Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's simplicity (2 required params), the presence of an output schema, and the clear coverage of purpose, side effect, and workflow, the description is largely complete. It doesn't discuss edge cases or prerequisites, but for this tool it provides sufficient context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.