How AI Agents Use the Knowledge Base Tool to Answer Customer Inquiries

The Knowledge Base Tool in Agent Studio allows an AI agent to answer questions using information stored in a selected Knowledge Base. A Knowledge Base can contain business information from sources such as website pages, FAQs, tables, rich text, uploaded files, and web search content. After the tool is added to an AI Agent node, the agent can search the selected Knowledge Base and use the relevant information to respond during a conversation. This article explains how to create or select a Knowledge Base, add the Knowledge Base Tool to an AI Agent node, configure when the agent should use it, and test the response. * * * ## Frequently Asked Questions Q: Where do I create a Knowledge Base? Knowledge Bases are created and managed from AI Agents → Knowledge Base. Q: Where is the Knowledge Base Tool used? The Knowledge Base Tool is used inside an AI Agent node in Agent Studio. Q: Does the Knowledge Base Tool start the agent**?** No. A trigger starts the agent. The Knowledge Base Tool is used inside the agent’s logic when the AI Agent node needs to answer a relevant question. Q: What type of content can a Knowledge Base include? A Knowledge Base can include content from source types such as Web Crawler, FAQ, Web Search, Tables, Rich Text, and File Upload. Q: What should I write in the tool instruction? Write when the agent should use the selected Knowledge Base. Include the topics, question types, or scenarios the Knowledge Base should support. Q: Can the agent answer questions that are not in the Knowledge Base? The Knowledge Base Tool helps answer questions using selected Knowledge Base content. If the information is not available, the agent may need additional instructions for how to respond when no relevant answer is found. Q: How do I know if the Knowledge Base Tool is working? Test the agent with questions that should be answered from the selected Knowledge Base and compare the response to the source content. * * * ### Related Articles - Knowledge Base Overview - How to Use the AI Agent Studio in Patient Copilot - Agent Studio Overview - Document Support in Knowledge Base for Patient Copilot AI Agents - AI Employee - Knowledge Base Tables - How to Test and Debug AI Conversations in Agent Studio