import asyncio from typing import TYPE_CHECKING, List from letta.functions.helpers import ( _send_message_to_agents_matching_tags_async, _send_message_to_all_agents_in_group_async, execute_send_message_to_agent, fire_and_forget_send_to_agent, ) from letta.schemas.enums import MessageRole from letta.schemas.message import MessageCreate if TYPE_CHECKING: from letta.agent import Agent def send_message_to_agent_and_wait_for_reply(self: "Agent", message: str, other_agent_id: str) -> str: """ Sends a message to a specific Letta agent within the same organization and waits for a response. The sender's identity is automatically included, so no explicit introduction is needed in the message. This function is designed for two-way communication where a reply is expected. Args: message (str): The content of the message to be sent to the target agent. other_agent_id (str): The unique identifier of the target Letta agent. Returns: str: The response from the target agent. """ augmented_message = ( f"[Incoming message from agent with ID '{self.agent_state.id}' - to reply to this message, " f"make sure to use the 'send_message' at the end, and the system will notify the sender of your response] " f"{message}" ) messages = [MessageCreate(role=MessageRole.system, content=augmented_message, name=self.agent_state.name)] return execute_send_message_to_agent( sender_agent=self, messages=messages, other_agent_id=other_agent_id, log_prefix="[send_message_to_agent_and_wait_for_reply]", ) def send_message_to_agent_async(self: "Agent", message: str, other_agent_id: str) -> str: """ Sends a message to a specific Letta agent within the same organization. The sender's identity is automatically included, so no explicit introduction is required in the message. This function does not expect a response from the target agent, making it suitable for notifications or one-way communication. Args: message (str): The content of the message to be sent to the target agent. other_agent_id (str): The unique identifier of the target Letta agent. Returns: str: A confirmation message indicating the message was successfully sent. """ message = ( f"[Incoming message from agent with ID '{self.agent_state.id}' - to reply to this message, " f"make sure to use the 'send_message_to_agent_async' tool, or the agent will not receive your message] " f"{message}" ) messages = [MessageCreate(role=MessageRole.system, content=message, name=self.agent_state.name)] # Do the actual fire-and-forget fire_and_forget_send_to_agent( sender_agent=self, messages=messages, other_agent_id=other_agent_id, log_prefix="[send_message_to_agent_async]", use_retries=False, # or True if you want to use async_send_message_with_retries ) # Immediately return to caller return "Successfully sent message" def send_message_to_agents_matching_tags(self: "Agent", message: str, match_all: List[str], match_some: List[str]) -> List[str]: """ Sends a message to all agents within the same organization that match the specified tag criteria. Agents must possess *all* of the tags in `match_all` and *at least one* of the tags in `match_some` to receive the message. Args: message (str): The content of the message to be sent to each matching agent. match_all (List[str]): A list of tags that an agent must possess to receive the message. match_some (List[str]): A list of tags where an agent must have at least one to qualify. Returns: List[str]: A list of responses from the agents that matched the filtering criteria. Each response corresponds to a single agent. Agents that do not respond will not have an entry in the returned list. """ return asyncio.run(_send_message_to_agents_matching_tags_async(self, message, match_all, match_some)) def send_message_to_all_agents_in_group(self: "Agent", message: str) -> List[str]: """ Sends a message to all agents within the same multi-agent group. Args: message (str): The content of the message to be sent to each matching agent. Returns: List[str]: A list of responses from the agents that matched the filtering criteria. Each response corresponds to a single agent. Agents that do not respond will not have an entry in the returned list. """ return asyncio.run(_send_message_to_all_agents_in_group_async(self, message))