update tools

agent.py

@@ -5,7 +5,7 @@ import numexpr
 from langchain_community.document_loaders import ArxivLoader
 from smolagents import (
     CodeAgent,
-    DuckDuckGoSearchTool,
+    GoogleSearchTool,
     InferenceClientModel,
     WikipediaSearchTool,
     tool,
@@ -40,19 +40,28 @@ def calculator(expression: str) -> str:
 @tool
 def arxiv_search_tool(query: str) -> str:
     """
-    Searches Arxiv and returns a summary or full text of the given topic, along with the page URL.
+    Searches Arxiv and returns a summary or full text of the given topic of the 5 most likely related papers, along with the page URL.
     Args:
         query: the topic to be searched
     """
-    doc = ArxivLoader(query=query, load_max_docs=1).load()
-    if len(doc) > 0:
-        doc = doc[0]
-        return f'<Document source="{doc.metadata["source"]}" page="{doc.metadata.get("page", "")}"/>\n{doc.page_content[:1000]}\n</Document>'
+    docs = ArxivLoader(query=query, load_max_docs=5).load()
+    if len(docs) > 0:
+        return "\n".join(
+            [
+                f'<Document source="{doc.metadata["source"]}" page="{doc.metadata.get("page", "")}"/>\n{doc.page_content[:1000]}\n</Document>'
+                for doc in docs
+            ]
+        )
 
     return "No content found"
 
 
-tools = [calculator, arxiv_search_tool, DuckDuckGoSearchTool(), WikipediaSearchTool()]
+tools = [
+    calculator,
+    arxiv_search_tool,
+    GoogleSearchTool(provider="serper"),
+    WikipediaSearchTool(),
+]
 
 model_id = "Qwen/Qwen3-235B-A22B"
 model = InferenceClientModel(