Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the baseline is 3. The description adds no additional meaning beyond the parameter details in the schema (e.g., 'dataset_id', 'page', 'search' are documented in the schema but not mentioned in the description). The description does not compensate or elaborate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.