Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema is empty, so there are no parameters to document. Although the description mentions 'by MAC', it does not explain how the MAC is specified, which could confuse an agent. With zero parameters, a baseline of 4 would apply, but the missing clarification about the MAC mechanism reduces the score.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.