Switch to Docker SDK for build stability

Dockerfile

@@ -0,0 +1,26 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Install system dependencies if needed (e.g. for audio)
+RUN apt-get update && apt-get install -y \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+# Expose Gradio port
+EXPOSE 7860
+
+# Environment variables
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONPATH=/app
+ENV GRADIO_SERVER_NAME=0.0.0.0
+ENV GRADIO_SERVER_PORT=7860
+
+# Run the app
+CMD ["python", "app.py"]
+

README.md

@@ -2,10 +2,8 @@
 title: Echo - Universal MCP Host
 emoji: 🔊
 colorFrom: gray
-colorTo: gray
-sdk: gradio
-sdk_version: 5.0.0
-app_file: app.py
+colorTo: black
+sdk: docker
 pinned: false
 tags:
   - mcp-in-action-track-consumer
@@ -49,10 +47,10 @@ Echo is server-agnostic.
 
 1.  **Enter your OpenAI API Key** in the settings (or via Environment Variable).
 2.  **Go to TOOLS**: See available servers.
-3.  **Click Connect** on "agentbell-voice" or "memory".
+3.  **Click Connect** on "agentbell-voice".
 4.  **Go to SESSION**: Chat with the agent.
-    *   Try: "Create a memory entity called Test" (Tool Call)
-    *   Try: "Delete all entities" (Triggers Blocking State -> Inspector Highlight)
+    *   Try: "Help me"
+    *   Try: "Delete file test.txt" (Triggers Blocking State -> Inspector Highlight)
 5.  **Open INSPECTOR**: Watch the JSON-RPC traffic live.
 
 ---
@@ -65,4 +63,3 @@ cd echo-agent
 pip install -r requirements.txt
 python app.py
 ```
-

app.py

@@ -12,6 +12,11 @@ from ui.layout import create_ui
 
 if __name__ == "__main__":
     # Launch the application
-    # server_name="0.0.0.0" allows external access if needed
     ui = create_ui()
-    ui.launch(server_port=7860)
+    
+    # Use environment variables for configuration, with safe defaults
+    # 0.0.0.0 is required for Docker/Hugging Face Spaces
+    server_name = os.getenv("GRADIO_SERVER_NAME", "0.0.0.0")
+    server_port = int(os.getenv("GRADIO_SERVER_PORT", "7860"))
+    
+    ui.launch(server_name=server_name, server_port=server_port)