Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% description coverage, fulfilling the baseline. The description adds value by grouping parameters into alternative lookup methods (coordinates, country code/name, IP), clarifying that these are distinct means of querying. This goes beyond individual parameter descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.