Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so every parameter is already fully documented in the schema, including the reply-comment_id caveat and page_token pagination rules. The description largely restates the schema's object_id/object_nonce_id/comment_id semantics rather than adding syntax or format detail beyond it, so the baseline of 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.