Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema documents the single 'text' parameter with 100% coverage, so the description adds no new semantics beyond restating the parameter's purpose. It does not clarify format, length limits, or encoding, but the baseline of 3 is appropriate when the schema is sufficient.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.