Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is only 50%, but the description compensates by explaining the optional preset set (date, start time, rate, traveler mix) and by defining rate_id's relationship to get_price_quote's rate_options. It does not clarify bokun_id's meaning nor the start_time vs start_time_id precedence beyond what the schema text says.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.