Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, and the schema already explains query, tag, and limit in detail, including defaults, max, and tag enum values. The description does not add new parameter-level meaning beyond restating the searchable fields, so the baseline of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.