"""
Core Protocol Layer
"""

# Protocol constants
class MessageTypes:
    HANDSHAKE = 0x01
    AUTH = 0x02
    COMMAND = 0x03
    RESPONSE = 0x04

class StateTransitions:
    INIT = "init"
    CONNECTED = "connected"
    AUTHENTICATED = "authenticated"
    READY = "ready"

class ProtocolHandler:
    """Minimal protocol handler"""
    
    def __init__(self, host: str, port: int):
        self.host = host
        self.port = port
    
    async def connect(self):
        """Connect to runtime"""
        pass
    
    async def authenticate(self, credentials):
        """Authenticate with runtime"""
        return type('AuthResult', (), {'success': True})()

__all__ = ["ProtocolHandler", "MessageTypes", "StateTransitions"]
