Add image describer demo without tool calls

Author: aabmass

adk-sql-agent/image_describer_agent/.env

@@ -0,0 +1,3 @@
+GOOGLE_GENAI_USE_VERTEXAI=1
+GOOGLE_CLOUD_PROJECT=otel-starter-project
+GOOGLE_CLOUD_LOCATION=us-central1

adk-sql-agent/image_describer_agent/__init__.py

@@ -0,0 +1 @@
+from . import agent

adk-sql-agent/image_describer_agent/agent.py

@@ -0,0 +1,17 @@
+from textwrap import dedent
+from google.adk.agents.llm_agent import Agent
+
+root_agent = Agent(
+    model="gemini-2.5-flash",
+    name="root_agent",
+    description="An agent that can describe images",
+    instruction=dedent("""\
+    You are an agent that can describe images. You don't have any tools at your disposal.
+    Some guidelines for you:
+
+    - Don't answer any questions that are opinion based or involve emotions.
+    - Keep it brief and succinct
+    - But also be descriptive
+    - Answer in a professional tone
+    """),
+)

adk-sql-agent/main.py

@@ -127,7 +127,7 @@ def setup_opentelemetry() -> None:
     #     set_uploader(GcsUploader(bucket_path=OTEL_PYTHON_GCS_UPLOAD_BUCKET))
 
     # Load instrumentors
-    SQLite3Instrumentor().instrument()
+    # SQLite3Instrumentor().instrument()
     VertexAIInstrumentor().instrument()
     GoogleGenAiSdkInstrumentor().instrument()
     AioHttpClientInstrumentor().instrument()