after_agent() — langchain Function Reference

Architecture documentation for the after_agent() function in test_framework.py from the langchain codebase.

Function python LangChainCore ApiManagement calls 1 called by 1

Entity Profile

LangChainCore→ ApiManagement→ after_agent() — langchain Function Reference

Dependency Diagram

graph TD
  f8c801ee_06dc_05e5_b5d9_6499452ee141["after_agent()"]
  a8d1868f_6ff2_5369_173c_c9fc7f2da6be["CustomMiddleware"]
  f8c801ee_06dc_05e5_b5d9_6499452ee141 -->|defined in| a8d1868f_6ff2_5369_173c_c9fc7f2da6be
  05e1929f_e974_6405_7ed0_3f3f64215f33["test_hook_with_class_inheritance()"]
  05e1929f_e974_6405_7ed0_3f3f64215f33 -->|calls| f8c801ee_06dc_05e5_b5d9_6499452ee141
  53cfff0b_c0cc_ffd2_649b_70806af6e30a["after_agent()"]
  f8c801ee_06dc_05e5_b5d9_6499452ee141 -->|calls| 53cfff0b_c0cc_ffd2_649b_70806af6e30a
  style f8c801ee_06dc_05e5_b5d9_6499452ee141 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_framework.py lines 859–864

            def after_agent(
                self, state: AgentState[Any], runtime: Runtime
            ) -> dict[str, Any] | None:
                if hook_type == "after":
                    execution_log.append("hook_called")
                return None