Update app.py

app.py

@@ -936,10 +936,10 @@ def orchestrate_turn(user_input: str, session_id: str = "default") -> str:
         log_step("Step 2: Process user input", step_start)
         
         # ====================================================================
-        # STEP 3: TOOL DECISION ENGINE (Qwen3-Claude)
+        # STEP 3: TOOL DECISION ENGINE (Llama-3.2-3B)
         # ====================================================================
         step_start = log_step("Step 3: Tool decision")
-        tool_decision_result = tool_agent.should_use_visualization(user_input)
+        tool_decision_result = tool_agent.decide(user_input, conversation_history)
         
         tool_img_output = ""
         tool_context = ""
@@ -951,7 +951,6 @@ def orchestrate_turn(user_input: str, session_id: str = "default") -> str:
             logger.info("Tool decision: NO - no visualization needed")
         
         log_step("Step 3: Tool decision", step_start)
-        
         # ====================================================================
         # STEP 4: REGEX LOGICAL EXPRESSIONS
         # ====================================================================