Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description enriches understanding beyond the schema: explains visibility effects on discoverability, clarifies price_cents must be 0, and constrains tier_required to author's plan. Report_id is not explained, but schema coverage is 50% and description compensates well.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.