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 six parameters. The description adds the 'soft-deleted' context and the list of item types, which aligns with the 'types' parameter enum. However, it does not add meaning beyond the schema for parameters like page, limit, order, search, or sort_by. Baseline 3 is correct when the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.