Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the simplicity of the tool (4 parameters, required country only, output schema present), the description covers the key aspects: input, output, usage context, and async behavior. It lacks explicit error handling or pagination instructions, but the limit parameter and async mechanism are documented in the schema. Overall complete for a lookup tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.