create_retriever_tool

langchain_core.tools.retriever.create_retriever_tool(retriever: BaseRetriever, name: str, description: str, *, document_prompt: BasePromptTemplate | None = None, document_separator: str = '\n\n') → Tool

Create a tool to do retrieval of documents.

Args:

retriever: The retriever to use for the retrieval name: The name for the tool. This will be passed to the language model,

so should be unique and somewhat descriptive.

description: The description for the tool. This will be passed to the language

model, so should be descriptive.

document_prompt: The prompt to use for the document. Defaults to None. document_separator: The separator to use between documents. Defaults to “

“.

Returns:

Tool class to pass to an agent.

Parameters:

• retriever (BaseRetriever) –

• name (str) –

• description (str) –

• document_prompt (BasePromptTemplate | None) –

• document_separator (str) –

Return type:

Tool

Examples using create_retriever_tool

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• Conversational RAG

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• Xata