stop using add_base_tools=True and set tools explicitly

app.py

@@ -5,7 +5,13 @@ import litellm
 import requests
 import inspect
 import pandas as pd
-from smolagents import CodeAgent, LiteLLMModel
+from smolagents import (
+    CodeAgent, 
+    LiteLLMModel, 
+    PythonInterpreterTool,
+    DuckDuckGoSearchTool,
+    VisitWebpageTool
+)
 from api_call_counter import APICallCounter
 
 # (Keep Constants as is)
@@ -24,7 +30,14 @@ class BasicAgent:
             model_id="gemini/gemini-2.5-flash", 
             api_key=os.getenv("GOOGLE_API_KEY")
         )
-        self.agent = CodeAgent(tools=[], model=model, add_base_tools=True)
+        self.agent = CodeAgent(
+            tools=[
+                PythonInterpreterTool(),
+                DuckDuckGoSearchTool(),
+                VisitWebpageTool()
+            ], 
+            model=model,
+        )
         print("BasicAgent initialized.")
     def __call__(self, question: str) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")