Answer Questions With RAG
Ask questions about your knowledge base and get context-aware answers sourced directly from your document collection using a RAG-powered AI agent.
Overview
The Basic RAG Agent workflow provides informative answers by searching a custom knowledge base for relevant documents. When a question comes in, the AI agent retrieves matching content from your document collection and generates a helpful, grounded response — or lets the user know if the answer isn't available.
This is ideal for anyone who wants quick, accurate answers sourced directly from their own documents.
What It Does
- Triggers the workflow when a question is received via a webhook.
- Searches a document collection for relevant information using built-in retrieval tools.
- Generates a context-aware response based on the retrieved documents.
What You Need
- A Needle platform account to create and run workflows.
- A prepared document collection (e.g., about agentic AI or any topic you choose).
- A webhook endpoint set up to receive user questions.
How the Flow Works
| Node | Description |
|---|---|
| Webhook Trigger | Activates the workflow when it receives an incoming question via a webhook call. |
| AI Agent Node | Searches the specified knowledge base collection and retrieves file contents as needed, then formulates a response based on the retrieved information. |
Output
You get a text response generated by the AI agent, grounded in relevant documents found in your knowledge base. If no pertinent information is found, the agent will inform the user accordingly.
Notes
- Make sure your document collection is well-maintained and up to date to improve answer quality.
- Adjust the temperature setting in the AI node if you want more creative or more precise responses.
- The prompt can be customized to better match your domain or communication style.
- You can swap in a different document collection by updating the collection ID in the AI node's tool configuration.
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