Files
letta-server/letta/agents/base_agent.py

52 lines
1.5 KiB
Python

from abc import ABC, abstractmethod
from typing import Any, AsyncGenerator, List
import openai
from letta.schemas.letta_message import UserMessage
from letta.schemas.message import Message
from letta.schemas.user import User
from letta.services.agent_manager import AgentManager
from letta.services.message_manager import MessageManager
class BaseAgent(ABC):
"""
Abstract base class for AI agents, handling message management, tool execution,
and context tracking.
"""
def __init__(
self,
agent_id: str,
openai_client: openai.AsyncClient,
message_manager: MessageManager,
agent_manager: AgentManager,
actor: User,
):
self.agent_id = agent_id
self.openai_client = openai_client
self.message_manager = message_manager
self.agent_manager = agent_manager
self.actor = actor
@abstractmethod
async def step(self, input_message: UserMessage) -> List[Message]:
"""
Main execution loop for the agent.
"""
raise NotImplementedError
@abstractmethod
async def step_stream(self, input_message: UserMessage) -> AsyncGenerator[str, None]:
"""
Main async execution loop for the agent. Implementations must yield messages as SSE events.
"""
raise NotImplementedError
def pre_process_input_message(self, input_message: UserMessage) -> Any:
"""
Pre-process function to run on the input_message.
"""
return input_message.model_dump()