"""hms_protocol – versioniertes IPC (PLAN.md §6.2, ADR-0003).

Lokales TCP auf 127.0.0.1, length-prefixed MessagePack, Protokollversion 1.
Verbindungsschicht: Handshake, Snapshot/Delta, Heartbeat, Re-Sync.
"""

from hms_protocol.connection import (
    HandshakeInfo,
    IpcClient,
    IpcServer,
    ProtocolError,
)
from hms_protocol.envelope import Envelope, MessageType
from hms_protocol.framing import (
    decode_frame,
    encode_frame,
    read_frame,
    read_frame_async,
    write_frame,
)
from hms_protocol.idempotency import IdempotencyRegistry

__all__ = [
    "Envelope",
    "MessageType",
    "encode_frame",
    "decode_frame",
    "read_frame",
    "read_frame_async",
    "write_frame",
    "IdempotencyRegistry",
    "IpcServer",
    "IpcClient",
    "HandshakeInfo",
    "ProtocolError",
]