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 adds meaning for ciphertext_b64 ('Ciphertext only') and recipients ('must include the pushing device's own pubkey'), but leaves alias, kind, device_id, and client_hlc without any explanation. Given six parameters, this is insufficient to guide an agent on parameter construction.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.