Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so the baseline is 3, but the description genuinely extends the organization parameter: omitting it lists the default organization, the personal one if present, and names any others, while supplying it lists that one instead. That scoping behavior is not in the schema text.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.