Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, including documentation of the nested weights object and enum-like entity type list, so the schema does the heavy lifting. The description adds no parameter-level detail (no mention of limit bounds, weights, or type filtering), which is acceptable at full coverage but yields the baseline 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.