Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With 0% schema description coverage, the description must fully compensate, and it does. It explains `filters` as a mapping of facet name to value slug, gives an example, and notes the 'at most once' constraint. It defines valid values for `scope` (clause/guide/all) and `sort` (title, date_published_desc, date_modified_desc). It also provides default values and ranges for `limit` (1-100) and `offset`.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.