Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The only parameter, session_id, is not described in the schema or the description. With 0% schema description coverage, the description needed to explain how to obtain or interpret session_id, but it only clarifies what is not an argument rather than what the parameter means.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.