Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Since the schema provides 100% coverage, the description primarily serves as high-level documentation. It does not add unique semantic meaning (e.g., data types, specific formatting) beyond what the input schema already provides. This meets the baseline for a 100% coverage tool.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.