chore: import upstream snapshot with attribution

tests/integration/fixture/bigquery_agent/agent.py

@@ -0,0 +1,75 @@
+# 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 google.adk.agents.llm_agent import LlmAgent
+from google.adk.tools.bigquery.bigquery_credentials import BigQueryCredentialsConfig
+from google.adk.tools.bigquery.bigquery_toolset import BigQueryToolset
+from google.adk.tools.bigquery.config import BigQueryToolConfig
+from google.adk.tools.bigquery.config import WriteMode
+import google.auth
+
+# Check necessary environment variables
+if not (google_cloud_project_id := os.getenv("GOOGLE_CLOUD_PROJECT")):
+  raise ValueError(
+      "GOOGLE_CLOUD_PROJECT environment variable is not set. Please set it"
+      " to the GCP project ID where your BigQuery jobs would be run."
+  )
+
+# Define an appropriate application name
+BIGQUERY_AGENT_NAME = "adk_eval_bigquery_agent"
+
+
+# Define BigQuery tool config with write mode set to allowed. Note that this is
+# only to demonstrate the full capability of the BigQuery tools. In production
+# you may want to change to BLOCKED (default write mode, effectively makes the
+# tool read-only) or PROTECTED (only allows writes in the anonymous dataset of a
+# BigQuery session) write mode.
+tool_config = BigQueryToolConfig(
+    write_mode=WriteMode.BLOCKED,
+    application_name=BIGQUERY_AGENT_NAME,
+    compute_project_id=google_cloud_project_id,
+)
+
+# Initialize the tools to use the application default credentials.
+# https://cloud.google.com/docs/authentication/provide-credentials-adc
+application_default_credentials, _ = google.auth.default()
+credentials_config = BigQueryCredentialsConfig(
+    credentials=application_default_credentials
+)
+
+bigquery_toolset = BigQueryToolset(
+    credentials_config=credentials_config, bigquery_tool_config=tool_config
+)
+
+# The variable name `root_agent` determines what your root agent is for the
+# debug CLI
+root_agent = LlmAgent(
+    model="gemini-2.5-flash",
+    name=BIGQUERY_AGENT_NAME,
+    description=(
+        "Agent to answer questions about BigQuery data and models and execute"
+        " SQL queries."
+    ),
+    instruction=f"""\
+        You are a data science agent with access to several BigQuery tools.
+        Make use of those tools to answer the user's questions.
+
+        You must use the project id {google_cloud_project_id} for running SQL
+        queries and generating data insights
+    """,
+    tools=[bigquery_toolset],
+)