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Kristopher Overholt
e5d509d0ea
* Rename RAG Engine to Knowledge Engine across docs * Fix remaining Agent Engine / Reasoning Engine product names * Rename Vector Search 2.0 to Agent Retrieval in grounding docs
35 lines
1.2 KiB
Markdown
35 lines
1.2 KiB
Markdown
---
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catalog_title: Knowledge Engine
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catalog_description: Perform private data retrieval using Knowledge Engine
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catalog_icon: /integrations/assets/agent-platform.svg
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catalog_tags: ["data","google"]
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---
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# Knowledge Engine tool for ADK
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<div class="language-support-tag">
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<span class="lst-supported">Supported in ADK</span><span class="lst-python">Python v0.1.0</span><span class="lst-java">Java v0.2.0</span>
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</div>
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The `vertex_ai_rag_retrieval` tool allows the agent to perform private data
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retrieval using Knowledge Engine.
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When you use grounding with Knowledge Engine, you need to prepare a RAG corpus
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beforehand. Please refer to the [RAG ADK agent
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sample](https://github.com/google/adk-samples/blob/main/python/agents/RAG/rag/shared_libraries/prepare_corpus_and_data.py)
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or [Knowledge Engine
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page](https://cloud.google.com/vertex-ai/generative-ai/docs/rag-engine/rag-quickstart)
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for setting it up.
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!!! warning "Warning: Single tool per agent limitation"
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This tool can only be used ***by itself*** within an agent instance.
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For more information about this limitation and workarounds, see
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[Limitations for ADK tools](/tools/limitations/).
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=== "Python"
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```py
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--8<-- "examples/python/snippets/tools/built-in-tools/rag_engine.py"
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```
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