refactor: rename get_pong_app to get_pong_app_a2ui_json for clarity

Author: sugoi-yuzuru

samples/agent/adk/mcp_app_proxy/agent.py

@@ -28,15 +28,15 @@
 from google.adk.sessions import InMemorySessionService
 from google.genai import types
 from pydantic import PrivateAttr
-from tools import get_calculator_app, calculate_via_mcp, get_pong_app
+from tools import get_calculator_app, calculate_via_mcp, get_pong_app_a2ui_json
 from agent_executor import get_a2ui_enabled, get_a2ui_catalog, get_a2ui_examples
 
 logger = logging.getLogger(__name__)
 
 ROLE_DESCRIPTION = """
 You are an expert A2UI Proxy Agent. Your primary functions are to fetch the Calculator App or the Pong App and display it to the user.
 When the user asks for the calculator, you MUST call the `get_calculator_app` tool.
-When the user asks for Pong, you MUST call the `get_pong_app` tool.
+When the user asks for Pong, you MUST call the `get_pong_app_a2ui_json` tool.
 
 IMPORTANT: Do NOT attempt to construct the JSON manually. The tools handle it automatically.
 
@@ -46,7 +46,7 @@
 WORKFLOW_DESCRIPTION = """
 1. **Analyze Request**: 
    - If User asks for calculator: Call `get_calculator_app`.
-   - If User asks for Pong: Call `get_pong_app`.
+   - If User asks for Pong: Call `get_pong_app_a2ui_json`.
    - If User interacts with the calculator (ACTION: calculate): Extract 'operation', 'a', and 'b' from the event context and call `calculate_via_mcp`. Return the result to the user.
 """
 
@@ -191,7 +191,7 @@ def _build_llm_agent(
         name=self._agent_name,
         description="An agent that provides access to MCP Apps.",
         instruction=instruction,
-        tools=[get_calculator_app, calculate_via_mcp, get_pong_app],
+        tools=[get_calculator_app, calculate_via_mcp, get_pong_app_a2ui_json],
         planner=BuiltInPlanner(
             thinking_config=types.ThinkingConfig(
                 include_thoughts=True,

samples/agent/adk/mcp_app_proxy/tools.py

@@ -110,7 +110,7 @@ async def calculate_via_mcp(operation: str, a: float, b: float):
     return f"Error connecting to MCP server: {e}"
 
 
-async def get_pong_app(tool_context: ToolContext):
+async def get_pong_app_a2ui_json(tool_context: ToolContext):
   """Fetches the Pong game app."""
   import os
   current_dir = os.path.dirname(os.path.abspath(__file__))