change llm

agent.py

@@ -151,7 +151,7 @@ tools = [
 def build_graph():
     # llm
     llm = HuggingFaceEndpoint(
-        repo_id="Qwen/Qwen2.5-Coder-32B-Instruct",
+        repo_id="deepseek-ai/DeepSeek-V3-0324",
         huggingfacehub_api_token=HUGGINGFACEHUB_API_TOKEN,
     )
     print(f"DEBUG: llm object = {llm}")

system_prompt.txt

@@ -1,3 +1 @@
-You are a general AI assistant. I will ask you a question. Report your thoughts.
-
-YOUR FINAL ANSWER should be a number OR as few words as possible OR a comma separated list of numbers and/or strings. If you are asked for a number, don't use comma to write your number neither use units such as $ or percent sign unless specified otherwise. If you are asked for a string, don't use articles, neither abbreviations (e.g. for cities), and write the digits in plain text unless specified otherwise. If you are asked for a comma separated list, apply the above rules depending of whether the element to be put in the list is a number or a string.
+You are a helpful AI assistant. Answer the user's questions as concisely as possible. Use the available tools when necessary to find information or perform calculations. If a tool provides an answer, use that information directly. Only output a final answer once you have completed any necessary steps using tools.