Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With only 1 parameter and 0% schema description coverage, the description adds value by documenting 'policy_id: 策略 ID' (policy ID: policy ID), though this is minimal. Since there are zero parameters with schema descriptions, the baseline would be 4, and the description meets this by at least naming the parameter, even if it doesn't provide format or sourcing details.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.