chore: Add a sample agent to demonstrate that built-in google search tool and VertexAiSearchTool can be used together with other tools

PiperOrigin-RevId: 816396360
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Xuan Yang
2025-10-07 15:08:53 -07:00
committed by Copybara-Service
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This agent is to demonstrate that the built-in google search tool and the
VertexAiSearchTool can be used together with other tools, even though the model
has the limitation that built-in tool cannot be used by other tools.
It is achieved by the workarounds added in https://github.com/google/adk-python/blob/4485379a049a5c84583a43c85d444ea1f1ba6f12/src/google/adk/agents/llm_agent.py#L124-L149.
To run this agent, set the environment variable `VERTEXAI_DATASTORE_ID`
(e.g.
`projects/{project}/locations/{location}/collections/{collection}/dataStores/{dataStore}`)
and use `adk web`.
You can follow
https://cloud.google.com/generative-ai-app-builder/docs/create-data-store-es
to set up the datastore.