Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 67%, and the undocumented parameter (groups) is exactly the one the description explains: 'every group, or those named', making clear it is an optional subset selector defaulting to all groups. The sweep handle's origin is reinforced, though the mailbox parameter's password/sign-in framing adds only mild clarity beyond the schema's own text.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.