Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, and the description only indirectly references parameters via 'optionally recording a shipment.' It does not explain the meaning of status values, the order_id format, or the contents of the shipment object, leaving the agent to infer from property names and enums alone. Since schema coverage is zero, the description fails to compensate, making this dimension weak.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.