# ALT Contracts

This package owns ALT application-level protobuf contracts.

`proto-socket` remains the transport protocol. ALT messages should be defined here and carried inside proto-socket `PacketBase.data`.

Initial contract direction:

- additive protobuf changes first
- explicit handshake/version messages because proto-socket protocol `0.1` does not carry an application version field
- market-neutral models with Korea market daily bars as the MVP path
- generated clients should be derived from `proto/` sources, not edited by hand