Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% coverage with detailed descriptions of both parameters, including defaults, ranges, and enum meanings, so the baseline is 3. The description adds no parameter-level detail: 'recent window' is vaguer than the days parameter, and 'medium or high' is less precise than the min_level enum.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.