Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 67%, and the description adds nothing about mode, query, or connection_type. The undocumented query parameter (0% covered, and required) is not compensated for, but the other two parameters carry adequate schema descriptions, so the baseline is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.