Files
letta-server/letta/functions/function_sets/multi_agent.py
Kian Jones f5c4ab50f4 chore: add ty + pre-commit hook and repeal even more ruff rules (#9504)
* auto fixes

* auto fix pt2 and transitive deps and undefined var checking locals()

* manual fixes (ignored or letta-code fixed)

* fix circular import

* remove all ignores, add FastAPI rules and Ruff rules

* add ty and precommit

* ruff stuff

* ty check fixes

* ty check fixes pt 2

* error on invalid
2026-02-24 10:55:11 -08:00

118 lines
5.2 KiB
Python

import asyncio
from typing import TYPE_CHECKING, List
if TYPE_CHECKING:
from letta.agents.letta_agent import LettaAgent as Agent
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
from letta.server.rest_api.dependencies import get_letta_server
from letta.settings import settings
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}' - your response will be delivered to the sender] {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_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.
"""
server = get_letta_server()
augmented_message = f"[Incoming message from external Letta agent - your response will be delivered to the sender] {message}"
# Find matching agents
matching_agents = server.agent_manager.list_agents_matching_tags(actor=self.user, match_all=match_all, match_some=match_some)
if not matching_agents:
return []
# Prepare the message
messages = [MessageCreate(role=MessageRole.system, content=augmented_message, name=self.agent_state.name)]
# Use async helper for parallel message sending
return asyncio.run(_send_message_to_agents_matching_tags_async(self, server, messages, matching_agents))
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))
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.
"""
if settings.environment == "prod":
raise RuntimeError("This tool is not allowed to be run on Letta Cloud.")
message = (
f"[Incoming message from agent with ID '{self.agent_state.id}' - "
f"this is a one-way notification; if you need to respond, use an agent-to-agent messaging tool if available] "
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"