chore: import upstream snapshot with attribution

contributing/samples/a2a/a2a_auth/remote_a2a/bigquery_agent/__init__.py

@@ -0,0 +1,15 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from . import agent

contributing/samples/a2a/a2a_auth/remote_a2a/bigquery_agent/agent.json

@@ -0,0 +1,45 @@
+{
+  "capabilities": {},
+  "defaultInputModes": [
+    "text/plain"
+  ],
+  "defaultOutputModes": [
+    "application/json"
+  ],
+  "description": "A Google BigQuery agent that helps manage users' data on Google BigQuery. Can list, get, and create datasets, as well as manage tables within datasets. Supports OAuth authentication for secure access to BigQuery resources.",
+  "name": "bigquery_agent",
+  "skills": [
+    {
+      "id": "dataset_management",
+      "name": "Dataset Management",
+      "description": "List, get details, and create BigQuery datasets",
+      "tags": [
+        "bigquery",
+        "datasets",
+        "google-cloud"
+      ]
+    },
+    {
+      "id": "table_management",
+      "name": "Table Management",
+      "description": "List, get details, and create BigQuery tables within datasets",
+      "tags": [
+        "bigquery",
+        "tables",
+        "google-cloud"
+      ]
+    },
+    {
+      "id": "oauth_authentication",
+      "name": "OAuth Authentication",
+      "description": "Secure authentication with Google BigQuery using OAuth",
+      "tags": [
+        "authentication",
+        "oauth",
+        "security"
+      ]
+    }
+  ],
+  "url": "http://localhost:8001/a2a/bigquery_agent",
+  "version": "1.0.0"
+}

contributing/samples/a2a/a2a_auth/remote_a2a/bigquery_agent/agent.py

@@ -0,0 +1,77 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+
+from dotenv import load_dotenv
+from google.adk import Agent
+from google.adk.tools.google_api_tool import BigQueryToolset
+
+# Load environment variables from .env file
+load_dotenv()
+
+# Access the variable
+oauth_client_id = os.getenv("OAUTH_CLIENT_ID")
+oauth_client_secret = os.getenv("OAUTH_CLIENT_SECRET")
+tools_to_expose = [
+    "bigquery_datasets_list",
+    "bigquery_datasets_get",
+    "bigquery_datasets_insert",
+    "bigquery_tables_list",
+    "bigquery_tables_get",
+    "bigquery_tables_insert",
+]
+bigquery_toolset = BigQueryToolset(
+    client_id=oauth_client_id,
+    client_secret=oauth_client_secret,
+    tool_filter=tools_to_expose,
+)
+
+root_agent = Agent(
+    name="bigquery_agent",
+    instruction="""
+      You are a helpful Google BigQuery agent that help to manage users' data on Google BigQuery.
+      Use the provided tools to conduct various operations on users' data in Google BigQuery.
+
+      Scenario 1:
+      The user wants to query their bigquery datasets
+      Use bigquery_datasets_list to query user's datasets
+
+      Scenario 2:
+      The user wants to query the details of a specific dataset
+      Use bigquery_datasets_get to get a dataset's details
+
+      Scenario 3:
+      The user wants to create a new dataset
+      Use bigquery_datasets_insert to create a new dataset
+
+      Scenario 4:
+      The user wants to query their tables in a specific dataset
+      Use bigquery_tables_list to list all tables in a dataset
+
+      Scenario 5:
+      The user wants to query the details of a specific table
+      Use bigquery_tables_get to get a table's details
+
+      Scenario 6:
+      The user wants to insert a new table into a dataset
+      Use bigquery_tables_insert to insert a new table into a dataset
+
+      Current user:
+      <User>
+      {userInfo?}
+      </User>
+""",
+    tools=[bigquery_toolset],
+)