Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With schema description coverage of 0%, the description must compensate for under-documented parameters. It only explains that customer_ids is for batched execution; it does not clarify the distinction or relationship between account, customer_id, customer_ids, or whether any are required.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.