Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description fully compensates by documenting all four parameters with formats, defaults, and constraints (e.g., state abbreviation, county FIPS code, year lag, limit max). This is exactly what the input schema lacks.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.