> ## Documentation Index > Fetch the complete documentation index at: https://docs.zynfo.ai/llms.txt > Use this file to discover all available pages before exploring further. # Widget behaviour, instructions, handoff and domains > Set chat history, source links, auto-open and typing delay, write the agent's instructions, set live-agent hours, and limit which domains load your widget. # Widget behaviour and settings These settings are on the **AI Agent** page. Click **Publish** (or **Save changes**) after you change them. ## General tab: widget behaviour Under **Widget behavior**: * **Max Messages per Session:** how many messages a visitor can send in one chat (10–200, default 50). * **Typing Delay (ms):** a short pause before the agent's reply appears (0–5000, default 800). * **Save chat history for returning visitors:** keeps the conversation when the visitor reloads the page or comes back later in the same browser. * **Show knowledge source links in answers:** adds links to the pages the answer came from. **Max Sources Shown per Reply** sets how many (1 to 3). * **Auto-open widget on page load:** opens the chat window when the page loads. Chat widget showing messages from yesterday and today, with the Save chat history for returning visitors setting ticked ## Behavior tab: the agent's instructions * **Role / Job Title:** for example "Customer support for Acme Bikes". * **Primary Goal:** what the agent should try to achieve, such as answering product questions or booking a call. * **System Prompt (Instructions):** the tone and rules the agent follows, for example "Never promise delivery dates" or "Reply in the customer's language". ## Live chat tab * **Live chat:** lets customers ask for a person. Turn it off and the agent keeps answering on its own. * **Working hours:** when on, a person is offered only inside your hours. Set the **Time zone** and the **Weekly Schedule**. * **Reply when a person isn't available:** what the AI says when a customer asks for a person outside your hours, or when nobody on your team is online. * **Routing** (owners and admins): who gets new chats, how long a teammate has to accept, and what happens when nobody is online. Below it, **Team availability** shows who is online. See [Live chat](/inbox/human-handoff) for every setting and what happens after a customer asks for a person. ## Security tab: allowed domains Add the domains where your widget may load (for example `www.example.com`) and click **Add Domain**. While the **Allowed Domains** list is empty, the widget loads on any site that uses your agent's snippet. Security tab with an Allowed Domains field and a list of added domains ## Related topics * [Chat widget text and appearance](/agent-management/content-and-appearance) * [Live chat](/inbox/human-handoff) This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.