Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
There is a single required parameter with 100% schema description coverage ('UUID of the external squad'), so the schema already does the work. The description adds no format, sourcing, or lookup guidance beyond what the schema states, which matches the baseline 3 for a fully documented parameter.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.