Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 56%, so the schema documents roughly half the parameters and the description must carry more weight. It adds meaning for site, list, and scope ('No site: all, personal, workspace:<id>' pattern) and ties status/state to form replies and bookings, but says nothing about q, where, sum, expand, export, limit/cursor, or service/resource, leaving roughly a dozen parameters semantically thin.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.