Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has a single required 'mac' property with no schema-level description (0% coverage). The description's phrase 'by MAC address' provides minimal clarification that this parameter is the client's MAC, but it does not explain format (e.g., colon-separated) or validation rules, so it only partially compensates for the missing schema description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.