chore: import upstream snapshot with attribution

2026-07-13 13:25:13 +08:00
commit ec2b666284
2231 changed files with 491535 additions and 0 deletions
@@ -0,0 +1,56 @@
+# 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.agents.llm_agent import LlmAgent
+from google.adk.tools.mcp_tool import StdioConnectionParams
+from google.adk.tools.mcp_tool.mcp_toolset import MCPToolset
+from google.genai.types import GenerateContentConfig
+from mcp import StdioServerParameters
+
+load_dotenv()
+
+POSTGRES_CONNECTION_STRING = os.getenv("POSTGRES_CONNECTION_STRING")
+if not POSTGRES_CONNECTION_STRING:
+  raise ValueError(
+      "POSTGRES_CONNECTION_STRING environment variable not set. "
+      "Please create a .env file with this variable."
+  )
+
+root_agent = LlmAgent(
+    name="postgres_agent",
+    instruction=(
+        "You are a PostgreSQL database assistant. "
+        "Use the provided tools to query, manage, and interact with "
+        "the PostgreSQL database. Ask clarifying questions when unsure."
+    ),
+    tools=[
+        MCPToolset(
+            connection_params=StdioConnectionParams(
+                server_params=StdioServerParameters(
+                    command="uvx",
+                    args=["postgres-mcp", "--access-mode=unrestricted"],
+                    env={"DATABASE_URI": POSTGRES_CONNECTION_STRING},
+                ),
+                timeout=60,
+            ),
+        )
+    ],
+    generate_content_config=GenerateContentConfig(
+        temperature=0.2,
+        top_p=0.95,
+    ),
+)