Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all parameters ('token', 'selector', 'duration') with their types and basic descriptions. The description adds no additional meaning beyond what the schema provides, such as explaining 'selector' options or 'duration' implications, meeting the baseline for high coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.