> ## Documentation Index > Fetch the complete documentation index at: https://docs.emadesk.com/llms.txt > Use this file to discover all available pages before exploring further. # Configuration > Shape how your agent behaves, style the chat widget, and manage quick FAQs. Configuration is where you tune your agent. It has three tabs: **Agent**, **UI**, and **FAQs**. A live preview on the right lets you test changes against your real agent before customers see them. ## Agent The **Agent** tab holds the system instruction that guides your agent's tone, its rules, and when it should hand off to a human. A sensible default ships out of the box, so editing this is optional. This tab also shows which **Knowledge Sources** the agent can use, such as Knowledge, Tables, and APIs. Agent tab with instruction and knowledge sources Use the preview on the right to send test messages. It talks to your real agent, so you can validate answers and tone before going live. ## UI The **UI** tab styles the chat widget to match your brand: logo, colors, welcome text, and avatar. UI configuration tab ## FAQs The **FAQs** tab lets you add common questions and answers so customers can access them directly from the FAQ section of the widget. FAQs tab Add as many as you need. They appear as quick suggestions in the widget. FAQs tab with entries