Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all three parameters thoroughly. The description adds marginal value by confirming the three search dimensions (keyword, tag, contributor) but doesn't provide additional semantics like search logic (AND/OR), partial matching, or parameter interactions beyond what's in the schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.