Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With 0% schema description coverage, the description must compensate. It does add meaning by explicitly framing the query as '[start, end] 区间内的事件', indicating that start and end define the interval boundaries. However, it does not specify the expected string format (e.g., YYYY-MM-DD), inclusivity, or default behavior, leaving a gap.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.