Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description must compensate. It provides some context for invitationId by referring to an 'invitation', but it entirely omits the idempotencyKey parameter, its purpose, and how to construct it. The schema only gives format constraints, which is insufficient for an agent to correctly supply both required parameters.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.