Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 0%, yet the description documents all three parameters meaningfully — critically, it gives the bbox element ORDER [min_lat, min_lon, max_lat, max_lon], which the schema's bare number array does not convey, and explains crs_epsg as a metric UTM code with the Thailand 32647 default. It omits what happens when both or neither of bbox/geojson_str are supplied, which is the remaining gap.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.