Update app.py

app.py

@@ -85,7 +85,12 @@ async def process_webcam_stream_async(image):
 
 with gr.Blocks() as demo:
     gr.Markdown("## 🎥 Robot Vision Webcam Stream (using MCP Client)")
-    # ... (Gradio UI layout remains the same) ...
+    gr.Markdown("""
+    ### 🔑 Hugging Face Token Required
+    To use this application, you must set a valid **Hugging Face API Token** in your local environment variables (`HF_TOKEN` or `HF_CV_ROBOT_TOKEN`).
+
+    **A write token is required** to upload images to the public dataset associated with this space. The resource usage for VLM inference will be tracked against *your* account.
+    """)
     with gr.Row():
         webcam_input = gr.Image(
             label="Captured from Web-Cam",