Module request_fields 

RequestFields — tagged union of operation-specific field sets.

Wire format (MsgPack)

Encoded as a 2-element array: [discriminant: u8, payload_map].

[discriminant: u8]  [payload: TextFields map]

Discriminant table:

0x01 = Text

Unknown discriminants are rejected with a typed error.

Enums

RequestFields

Operation-specific request fields.