refactor: 改用 LangGraph 原生 create_react_agent + astream_events

2026-05-07 02:11:20 +08:00
parent 6d7f8758d2
commit 58a2c8c081
3 changed files with 108 additions and 377 deletions
--- a/backend/app/agent/stream_context.py
+++ b/backend/app/agent/stream_context.py
@@ -1,9 +0,0 @@
-"""流式上下文，用于在 LangGraph 节点和 agent_service 之间传递 token 回调"""
-import contextvars
-import asyncio
-from typing import Optional, Any
-
-# 上下文变量：存储当前的 token 队列
-token_queue_var: contextvars.ContextVar[Optional[asyncio.Queue]] = contextvars.ContextVar(
-    "token_queue", default=None
-)