chore: import upstream snapshot with attribution

contributing/samples/integrations/slack_agent/agent.py

@@ -0,0 +1,61 @@
+# 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 asyncio
+import os
+
+from google.adk.agents.llm_agent import LlmAgent
+from google.adk.integrations.slack import SlackRunner
+from google.adk.runners import Runner
+from google.adk.sessions.in_memory_session_service import InMemorySessionService
+from slack_bolt.app.async_app import AsyncApp
+
+
+async def main():
+  # 1. Setup your ADK agent
+  agent = LlmAgent(
+      name="slack_agent",
+      instruction=(
+          "You are a helpful Slack bot powered by Google ADK. Be concise and"
+          " friendly."
+      ),
+  )
+
+  # 2. Setup ADK Runner
+  runner = Runner(
+      agent=agent,
+      app_name="slack_app",
+      session_service=InMemorySessionService(),
+      auto_create_session=True,
+  )
+
+  # 3. Setup Slack Bolt App
+  # Ensure you have SLACK_BOT_TOKEN and SLACK_APP_TOKEN in your environment
+  slack_app = AsyncApp(token=os.environ.get("SLACK_BOT_TOKEN"))
+
+  # 4. Initialize SlackRunner
+  slack_runner = SlackRunner(runner=runner, slack_app=slack_app)
+
+  # 5. Start the Slack bot (using Socket Mode)
+  app_token = os.environ.get("SLACK_APP_TOKEN")
+  if not app_token:
+    print("SLACK_APP_TOKEN not found. Please set it for Socket Mode.")
+    return
+
+  print("Starting Slack bot...")
+  await slack_runner.start(app_token=app_token)
+
+
+if __name__ == "__main__":
+  asyncio.run(main())