Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 75%, and the description reinforces the meaning that matters most: email/company exist to save the result for a follow-up from Alex Morris, and userConfirmed is the agreement flag authorizing that send. This clarifies the interdependent, all-or-nothing nature of the three optional parameters better than the schema's per-field descriptions do. Minor details of the nested answers object remain schema-only.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.