Node Details
- Name: chainTool
- Type: ChainTool
- Version: 1.0
- Category: Tools
- Description: Use a chain as allowed tool for agent
Parameters
-
Chain Name
- Type: string
- Description: A unique identifier for the chain tool
- Example: “state-of-union-qa”
-
Chain Description
- Type: string
- Description: A detailed description of what the chain does and when it should be used
- Example: “State of the Union QA - useful for when you need to ask questions about the most recent state of the union address.”
-
Return Direct
- Type: boolean
- Optional: Yes
- Description: Determines whether the tool should return its result directly or wrap it in a response
-
Base Chain
- Type: BaseChain
- Description: The LangChain chain to be used as the core functionality of this tool
Input/Output
Input
The node takes in the following inputs during initialization:- Chain Name (string)
- Chain Description (string)
- Return Direct (boolean, optional)
- Base Chain (BaseChain object)
Output
The node outputs a ChainTool object that can be used in agent configurations.Functionality
The ChainTool node creates a tool that wraps a LangChain chain, allowing it to be used as part of an agent’s toolkit. This enables the agent to leverage complex chain-based operations when needed. Key aspects of its functionality include:- Naming and describing the tool for clear identification by the agent
- Integrating a BaseChain object as the core functionality
- Optional direct return of results, bypassing standard response formatting
Use Cases
This node is particularly useful in scenarios where you want to:- Incorporate specialized question-answering chains into a more general agent
- Allow an agent to access and utilize complex, multi-step operations encapsulated in a chain
- Provide agents with tools that can perform in-depth analysis or processing on specific topics or datasets