Update system prompt

basic_agent.py

@@ -38,7 +38,9 @@ class BasicAgent:
         self.agent = AgentWorkflow.from_tools_or_functions(
             wiki_search_tool_las, # [search_tool, webpage_tool]
             llm=llm,
-            verbose=True
+            verbose=True,
+            system_prompt=("You are a helpful agent that can search Wikipedia for answers. "
+                           "Please be concise when answering questions and make sure your final outputs are relevant to the question.")
         )
 
         # self.ctx = Context(self.agent)