Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is only 25%, so the description must compensate. It does so thoroughly: explains that brandProfile replaces lists entirely, warns that omitted items are removed, clarifies that a rename alone removes nothing, and specifies that brandProfile includes both domains and names.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.