Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 1 parameter with 0% description coverage, but the description doesn't add any semantic details about 'instanceId' (e.g., what it refers to, format, or examples). Since the parameter count is low (1), the baseline is 4, but the lack of any parameter explanation in the description reduces it to 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.