Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema descriptions are clearly mismatched: 'url' mentions normalizing/citing, 'json' mentions validation, and 'zone' mentions timezone, none of which relate to splitting a hostname. Only 'host' is vaguely relevant, but the description does not confirm it is the primary input.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.