Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Although the schema already covers all parameters (100%) and defines enum values, the description adds clear behavioral nuances for each status (e.g., cancellation triggers notification, completed/no_show are internal). It enriches the schema's plain definitions with operational meaning.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.