Update app.py

app.py

@@ -1,18 +1,20 @@
 import os
 import streamlit as st
-from streamlit.errors import StreamlitSecretNotFoundError
 
-hf_token = os.getenv("HF_TOKEN")
+from macg.llm_openai import OpenAIResponsesLLM
 
-try:
-    hf_token = st.secrets.get("HF_TOKEN", hf_token)
-except StreamlitSecretNotFoundError:
-    pass
-
-if not hf_token:
-    st.error("HF_TOKEN not found. Add it in Streamlit Secrets or env var.")
+openai_key = os.getenv("OPENAI_API_KEY")
+if not openai_key:
+    st.error("OPENAI_API_KEY not found. Add it in HF Space Settings → Variables and secrets.")
     st.stop()
 
+llm = OpenAIResponsesLLM(
+    model=st.sidebar.text_input("OpenAI model", value="gpt-5"),
+    api_key=openai_key,
+    temperature=st.sidebar.slider("Temperature", 0.0, 1.0, 0.2, 0.05),
+    max_output_tokens=900,
+)
+
 st.set_page_config(page_title="Multi-Agent Codegen (HF)", layout="wide")
 
 st.title("🤖 Multi-Agent Codegen + Review + Testing (Hugging Face)")