Update app.py

app.py

@@ -30,7 +30,7 @@ def read_files(file_path: str) -> str:
         return path.read_text()
     elif path.suffix == ".csv" or path.suffix == ".xlsx" or path.suffix == ".xls":
         df = pd.read_csv(path) if path.suffix == ".csv" else pd.read_excel(path)
-        return df.to_string()
+        return df.to_csv(index=False)
     elif path.suffix == ".json":
         return path.read_text(encoding="utf-8")
     else:
@@ -40,7 +40,7 @@ class BasicAgent:
     def __init__(self):
         print("BasicAgent initialized.")
         model = InferenceClientModel(
-            model_id="Qwen/Qwen3-235B-A22B",
+            model_id="Qwen/Qwen2.5-72B-Instruct",
             token=os.getenv("HF_TOKEN")
         )
         web_agent = ToolCallingAgent(
@@ -48,11 +48,22 @@ class BasicAgent:
             model=model,
             max_steps=5,
             name="web_agent",
-            description="this agent can search the web"
+            description="""
+            Use this agent for factual questions requiring web search.
+            Always use this for:
+                - Wikipedia questions.
+                - Dates.
+                - Names.
+                - Historical Facts.
+                - Videos.
+                - Rankings.
+                - Counts.
+                - Factual Retrieval
+            """
         )
         #create a manager agent that can manage multiple agents
         self.agent = CodeAgent(
-            tools=[read_files],
+            tools=[read_files, DuckDuckGoSearchTool()],
             model=model,
             managed_agents=[web_agent],
             additional_authorized_imports = ["math", "random", "datetime", "json", "re", "statistics", "pandas"],
@@ -83,6 +94,7 @@ class BasicAgent:
             9. Use web search for factual questions.
             10. If uncertain, still give best concise answer.
             11. NEVER include any extra text before or after the answer.
+            12. If Attachment path is not None, call read_files before answering.
 
             BAD:
             "The answer is 485"