Update app.py

app.py

@@ -114,7 +114,7 @@ class ReActAgent:
 
     def _llm(self, messages: list[dict]) -> str:
         if not self.token:
-            return "Error: HF_TOKEN not set. Add your token in .env to use the LLM."
+            return "Error: HF_TOKEN not set. Add it in your Space: Settings → Variables and secrets → New secret (name: HF_TOKEN)."
         url = f"https://api-inference.huggingface.co/models/{self.model}"
         headers = {"Authorization": f"Bearer {self.token}", "Content-Type": "application/json"}
         payload = {"inputs": self._messages_to_prompt(messages), "parameters": {"max_new_tokens": 512, "return_full_text": False}}
@@ -165,7 +165,7 @@ class ReActAgent:
     def __call__(self, question: str) -> str:
         print(f"ReAct agent received question (first 50 chars): {question[:50]}...")
         if not self.token:
-            return "HF_TOKEN not set. Add your Hugging Face token in .env to run the ReAct agent."
+            return "HF_TOKEN not set. In your Hugging Face Space go to Settings → Variables and secrets, add a secret named HF_TOKEN with your token."
         system = (
             "You are a ReAct agent. For each turn you must either:\n"
             "1. Output: Thought: <reasoning> then Action: <tool_name> then Action Input: <input>\n"
@@ -325,7 +325,8 @@ with gr.Blocks() as demo:
     gr.Markdown(
         """
         **Multi-step ReAct agent:** Plan → Act (tools) → Observe → Reflect. The agent has access to:
-        **DuckDuckGo search**, **web page view**, and **code agent** (safe Python). Set `HF_TOKEN` in Secrets (or .env) to enable the LLM.
+        **DuckDuckGo search**, **web page view**, and **code agent** (safe Python).  
+        **Token:** In this Space go to **Settings → Variables and secrets** (Secrets), add a secret named **HF_TOKEN** with your Hugging Face token so the LLM can run.
         1. Log in with the button below. 2. Click 'Run Evaluation & Submit All Answers'. Submission can take a while while the agent runs on all questions.
         """
     )