Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema defines width, height, and percentage with defaults, but the description provides no explanation of these parameters. With schema description coverage at 0%, the description carries full responsibility for parameter semantics, yet it offers nothing. The agent is left to infer parameter meaning solely from schema names, which is insufficient (e.g., percentage relative to what?).
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.