Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is only 25%, so the description must compensate. It clarifies that the webhook can target an account or one owned study, which gives meaning to study_id, and groups event_types into interview, study lifecycle, participant lifecycle, and quota categories. It does not explain hook_url semantics, exact event-type usage, or the event_types array constraints beyond what the schema already encodes.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.