From 355b87102a2e3178f12e31ae496472d4958b7170 Mon Sep 17 00:00:00 2001
From: goulustis <cnimaiv@gmail.com>
Date: Fri, 21 Nov 2025 16:23:57 +0800
Subject: [PATCH] bug fixes + test

---
 lang_agent/graphs/tool_nodes.py | 41 +++++++++++++++++++++++++++++----
 1 file changed, 37 insertions(+), 4 deletions(-)

diff --git a/lang_agent/graphs/tool_nodes.py b/lang_agent/graphs/tool_nodes.py
index 06b8907..0cb940e 100644
--- a/lang_agent/graphs/tool_nodes.py
+++ b/lang_agent/graphs/tool_nodes.py
@@ -92,7 +92,7 @@ class ChattyToolNode(GraphBase):
                                           base_url=self.config.base_url,
                                           temperature=0)
         
-        self.chatty_agent = create_agent(self.chatty_agent, [], checkpointer=self.mem)
+        self.chatty_agent = create_agent(self.chatty_llm, [], checkpointer=self.mem)
         self.tool_agent = create_agent(self.tool_llm, self.tool_manager.get_list_langchain_tools(), checkpointer=self.mem)
 
         with open(self.config.chatty_sys_prompt_f, "r") as f:
@@ -102,6 +102,8 @@ class ChattyToolNode(GraphBase):
             self.tool_sys_prompt = f.read()
 
     def invoke(self, state:State):
+        self.tool_done = False
+
         inp = {"inp": state["inp"]}
         out = self.workflow.invoke(inp)
         chat_msgs = out.get("chatty_message")
@@ -119,6 +121,7 @@ class ChattyToolNode(GraphBase):
 
         out = self.tool_agent.invoke(*inp)
 
+        self.tool_done = True
         return {"tool_messages": out}
 
     
@@ -155,7 +158,7 @@ class ChattyToolNode(GraphBase):
         builder.add_edge(START, "chatty_tool_call")
         builder.add_edge(START, "chatty_chat_call")
         builder.add_edge("chatty_chat_call", "chatty_handoff_node")
-        builder.add_edge("chatty_node_call", "chatty_handoff_node")
+        builder.add_edge("chatty_tool_call", "chatty_handoff_node")
         builder.add_edge("chatty_handoff_node", END)
 
         self.workflow = builder.compile()
@@ -171,5 +174,35 @@ tool_node_union = tyro.extras.subcommand_type_from_defaults(tool_node_dict, pref
 AnnotatedToolNode = tyro.conf.OmitSubcommandPrefixes[tyro.conf.SuppressFixed[tool_node_union]]
 
 if __name__ == "__main__":
-    tyro.cli(ToolNodeConfig)
-        
+    from langchain.chat_models import init_chat_model
+    from langchain_core.messages.base import BaseMessageChunk
+    from langchain_core.messages import BaseMessage
+    
+    from lang_agent.tool_manager import ToolManagerConfig
+    
+    from dotenv import load_dotenv
+    import os
+    load_dotenv()
+
+    llm = init_chat_model(model="qwen-flash",
+                            model_provider="openai",
+                            api_key=os.environ.get("ALI_API_KEY"),
+                            base_url="https://dashscope.aliyuncs.com/compatible-mode/v1",
+                            temperature=0)
+    mem = MemorySaver()
+    tool_manager = ToolManagerConfig().setup()
+    chatty_node:ChattyToolNode = ChattyToolNodeConfig().setup(tool_manager=tool_manager,
+                                               llm=llm,
+                                               memory=mem)
+    
+    query = "use calculator to calculate 33*42"
+    input = {"inp" : ({"messages":[SystemMessage("you are a kind helper"), HumanMessage(query)]}, 
+                      {"configurable": {"thread_id": '3'}})}
+    inp = input["inp"]
+    
+    graph = chatty_node.workflow
+
+    for chunk, metadata in graph.stream(*inp, stream_mode="messages"):
+        if isinstance(chunk, (BaseMessageChunk, BaseMessage)) and getattr(chunk, "content", None):
+            print(chunk.content, end="", flush=True)
+