Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so all 5 parameters are documented. The description restates the filter dimensions ('platform, tone, tag, attached asset, or keyword') but adds no new meaning beyond the schema. This matches the baseline of 3 for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.