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 bean_id, bag_id, tasted, data_confidence, etc. The description's parameter references (dose/yield/time, grind_label, bean_id, pulled_at) largely restate schema text, so baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.