Update app.py

app.py

@@ -10,6 +10,7 @@ from langchain_core.messages import AnyMessage, SystemMessage, HumanMessage
 from langgraph.graph.message import add_messages
 from langgraph.graph import START, StateGraph
 from langgraph.prebuilt import ToolNode, tools_condition
+from langchain_tavily import TavilySearch
 # (Keep Constants as is)
 # --- Constants ---
 DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
@@ -39,7 +40,14 @@ class BasicAgent:
             max_retries=1,
             max_tokens=128,
         )
-        self.tools = []
+        self.tools = [
+            TavilySearch(
+                max_results=5,
+                topic="general",
+                search_depth="basic",
+            )
+        ]
+
         self.chat_with_tools = self.model.bind_tools(self.tools)
         # The graph
         builder = StateGraph(AgentState)