feat: integrate Pong game scoreboard with silent updates and layout refinements

samples/agent/adk/mcp_app_proxy/agent.py

@@ -28,7 +28,7 @@
 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_a2ui_json
+from tools import get_calculator_app, calculate_via_mcp, get_pong_app_a2ui_json, score_update
 from agent_executor import get_a2ui_enabled, get_a2ui_catalog, get_a2ui_examples
 
 logger = logging.getLogger(__name__)
@@ -160,6 +160,13 @@ def _build_agent_card(self) -> AgentCard:
                 tags=["html", "app", "demo", "tool"],
                 examples=["open pong", "show pong"],
             ),
+            AgentSkill(
+                id="score_update",
+                name="Score Update",
+                description="Updates the score for Pong game.",
+                tags=["pong", "score", "tool"],
+                examples=[],
+            ),
         ],
     )
 
@@ -194,7 +201,12 @@ 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_a2ui_json],
+        tools=[
+            get_calculator_app,
+            calculate_via_mcp,
+            get_pong_app_a2ui_json,
+            score_update,
+        ],
         planner=BuiltInPlanner(
             thinking_config=types.ThinkingConfig(
                 include_thoughts=True,

samples/agent/adk/mcp_app_proxy/catalogs/0.8/mcp_app_catalog.json

@@ -42,6 +42,58 @@
       "required": [
         "content"
       ]
+    },
+    "Column": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "alignment": { "type": "string" },
+        "distribution": { "type": "string" },
+        "children": {
+          "type": "array",
+          "items": { "type": "object" }
+        }
+      }
+    },
+    "PongScoreBoard": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "playerScore": {
+          "type": "object",
+          "description": "Player score value or path.",
+          "additionalProperties": false,
+          "properties": {
+            "literalNumber": { "type": "number" },
+            "literalString": { "type": "string" },
+            "path": { "type": "string" }
+          }
+        },
+        "cpuScore": {
+          "type": "object",
+          "description": "CPU score value or path.",
+          "additionalProperties": false,
+          "properties": {
+            "literalNumber": { "type": "number" },
+            "literalString": { "type": "string" },
+            "path": { "type": "string" }
+          }
+        }
+      }
+    },
+    "PongLayout": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "mcpComponent": {
+          "type": "object",
+          "description": "McpApp component definition."
+        },
+        "scoreboardComponent": {
+          "type": "object",
+          "description": "PongScoreBoard component definition."
+        }
+      }
     }
   }
 }

samples/agent/adk/mcp_app_proxy/catalogs/0.9/mcp_app_catalog.json

@@ -1,6 +1,38 @@
 {
   "catalogId": "a2ui.org:a2ui/v0.9/mcp_app_catalog.json",
   "components": {
+    "Column": {
+      "type": "object",
+      "allOf": [
+        {
+          "$ref": "common_types.json#/$defs/ComponentCommon"
+        },
+        {
+          "type": "object",
+          "properties": {
+            "component": {
+              "const": "Column"
+            },
+            "alignment": {
+              "type": "string"
+            },
+            "distribution": {
+              "type": "string"
+            },
+            "children": {
+              "type": "array",
+              "items": {
+                "$ref": "#/$defs/anyComponent"
+              }
+            }
+          },
+          "required": [
+            "component"
+          ],
+          "additionalProperties": false
+        }
+      ]
+    },
     "McpApp": {
       "type": "object",
       "allOf": [
@@ -36,13 +68,76 @@
           "additionalProperties": false
         }
       ]
+    },
+    "PongScoreBoard": {
+      "type": "object",
+      "allOf": [
+        {
+          "$ref": "common_types.json#/$defs/ComponentCommon"
+        },
+        {
+          "type": "object",
+          "properties": {
+            "component": {
+              "const": "PongScoreBoard"
+            },
+            "playerScore": {
+              "$ref": "common_types.json#/$defs/DynamicNumber",
+              "description": "Player score value or path."
+            },
+            "cpuScore": {
+              "$ref": "common_types.json#/$defs/DynamicNumber",
+              "description": "CPU score value or path."
+            }
+          },
+          "required": [
+            "component"
+          ],
+          "additionalProperties": false
+        }
+      ]
+    },
+    "PongLayout": {
+      "type": "object",
+      "allOf": [
+        {
+          "$ref": "common_types.json#/$defs/ComponentCommon"
+        },
+        {
+          "type": "object",
+          "properties": {
+            "component": {
+              "const": "PongLayout"
+            },
+            "mcpComponent": {
+              "$ref": "#/$defs/McpApp"
+            },
+            "scoreboardComponent": {
+              "$ref": "#/$defs/PongScoreBoard"
+            }
+          },
+          "required": [
+            "component"
+          ],
+          "additionalProperties": false
+        }
+      ]
     }
   },
   "$defs": {
     "anyComponent": {
       "oneOf": [
         {
           "$ref": "#/$defs/McpApp"
+        },
+        {
+          "$ref": "#/$defs/PongScoreBoard"
+        },
+        {
+          "$ref": "#/$defs/PongLayout"
+        },
+        {
+          "$ref": "#/$defs/Column"
         }
       ]
     }