_convert_agent_action_to_messages() — langchain Function Reference

Architecture documentation for the _convert_agent_action_to_messages() function in agents.py from the langchain codebase.

Function python CoreAbstractions MessageSchema called by 1

Entity Profile

CoreAbstractions→ MessageSchema→ _convert_agent_action_to_messages() — langchain Function Reference

Dependency Diagram

graph TD
  19fc1ae4_712d_8715_7c11_2966dede9a0b["_convert_agent_action_to_messages()"]
  81828515_0fcd_6cb4_96b8_62d4fca3e4ff["agents.py"]
  19fc1ae4_712d_8715_7c11_2966dede9a0b -->|defined in| 81828515_0fcd_6cb4_96b8_62d4fca3e4ff
  359cd72a_4765_207f_e3a1_6ec23bf7c8e4["messages()"]
  359cd72a_4765_207f_e3a1_6ec23bf7c8e4 -->|calls| 19fc1ae4_712d_8715_7c11_2966dede9a0b
  style 19fc1ae4_712d_8715_7c11_2966dede9a0b fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/agents.py lines 191–206

def _convert_agent_action_to_messages(
    agent_action: AgentAction,
) -> Sequence[BaseMessage]:
    """Convert an agent action to a message.

    This code is used to reconstruct the original AI message from the agent action.

    Args:
        agent_action: Agent action to convert.

    Returns:
        `AIMessage` that corresponds to the original tool invocation.
    """
    if isinstance(agent_action, AgentActionMessageLog):
        return agent_action.message_log
    return [AIMessage(content=agent_action.log)]