Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% and already documents kind/id/side/design, so the baseline is 3. The description adds cross-parameter interaction semantics the schema only partially conveys: 'no side' means every file on a one-design job, while side applies only for a single face, and design selects among multiple designs.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.