Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so all three parameters (type, query, server) are documented in the schema. The description does not add extra meaning beyond hinting at the type filter via 'listings, offers, and trades.' Since the schema fully captures parameter semantics, the baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.