Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, and the schema documents kind, product, platform, version, and environment thoroughly, including how to source IDs from list_platforms and list_versions. The description's 'Pass kind=before or kind=after' merely repeats the schema, so the baseline 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.