Update agent_v2.py

agent_v2.py

@@ -802,10 +802,10 @@ def build_graph(provider: str = "huggingface"):
         tools_condition,
         {
             "tools": "tools",
-            "none": "extractor",  # Only go to extractor when no tool calls exist
+            "none": "extractor",
+            "__end__": "__end__",  # <- this tells LangGraph it's allowed to finish here
         }
     )
-    
     builder.add_edge("tools", "assistant")
     builder.set_finish_point("extractor")