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 and the description mostly restates what the schema documents (date window, salon scoping, client, limit). It does introduce a mismatch: "which bookings a stylist has" implies a stylist filter, but no stylistId parameter exists in the schema, so that use case is unachievable as described.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.