> ## Documentation Index > Fetch the complete documentation index at: https://docs.vendschat.com/llms.txt > Use this file to discover all available pages before exploring further. # AI Agents FAQ > Answers Co-Admin should give for customer AI Agent questions. Answers Co-Admin should give for customer AI Agent questions. *** ## Basics ### What are AI Agents? Customer-facing bots that automatically reply on **Chat** threads assigned to them, using your instructions and knowledge sources. ### Where do I find AI Agents? Sidebar **AI Agents** → `/ai-agents` ### Which plan includes AI Agents? **Growth** and **Advanced**. Not **Starter**. See **Billing & Usage**. ### How is this different from Co-Admin? **Co-Admin** helps *your team* use Vendschat. **AI Agents** talk to *your customers* on WhatsApp, Messenger, and Instagram. ### How is this different from Generate Reply? | Generate Reply | AI Agents | | ----------------------------- | -------------------------------- | | Drafts for humans in composer | Sends to customers automatically | | Human clicks **Send** | Active on assigned threads | | **Settings → Generate Reply** | **AI Agents** page | *** ## Creating & editing ### How do I create an AI Agent? **AI Agents** → **Create AI Agent**, or **Browse templates** first. ### What templates exist? **Receptionist**, **Sales agent**, **Support agent**, **Custom** — at `/ai-agents/templates`. ### How long can instructions be? Up to **8,000 characters**. ### How long can the agent name be? **1–60 characters**. ### What is response delay? Seconds (0–30) the bot waits after inbound messages before replying — batches rapid texts into one reply. ### How do I pause an agent? **AI Agents** list → turn **switch** off → status **Paused**. ### How do I delete an agent? Card **⋯** → **Delete** → confirm. Unassigns threads and clears workspace default if applicable. *** ## Knowledge ### What files can I upload? PDF, TXT, MD, CSV, DOCX, PPTX, PPSX, and images (JPEG, PNG, BMP, WEBP, TIFF). ### What are the file size limits? **1 MB** per file, **1 MB** combined per upload batch, up to **5** files at once. ### Can I add a website? Yes — **Add knowledge source** → **Add website**. Set resync: Never, Daily, Weekly, or Monthly. ### What is max crawl depth? Default **3** link levels from the start URL. Adjustable in advanced crawl settings. ### Why is my source “syncing”? Crawl/index in progress. Wait or use **Resync** after save (edit mode). ### I hit a rate limit on knowledge changes Default **50** source changes and **50** resyncs per source per 24 hours. Wait and retry. *** ## Testing ### How do I test before going live? Use **Test AI Agent** on the create/edit form or agent detail page. Not sent to real customers. ### Does test use my knowledge? Yes — same retrieval as live replies for that agent. *** ## Chat & assignment ### How do I assign an AI Agent to a conversation? **Chat** → open thread → **Recipient panel** → **Assigned to** → select agent (brain icon). ### Will the bot reply to every thread? Only threads **assigned** to that agent (or new threads with workspace **default agent** if configured). ### How do I take over from the bot? Assign the thread to **yourself** or another **teammate**. ### What happens if I assign a team? AI assignment is cleared — team queue handles it. ### Can I unassign completely? **Assigned to** → **Unassigned**. ### Why isn’t the bot replying? Check: thread assigned to agent, agent **Active** (not Paused), channel connected, not in human takeover. ### Does pausing the agent stop all threads? Yes — paused agents don’t process the reply queue. Assignments may remain but no auto-replies. *** ## Actions & handover ### What actions can the bot take? Close conversation, assign to team/agent, update contact fields, update labels, add internal comments, HTTP requests — each toggled separately with instructions. ### Are HTTP actions live? Configured in the form; model receives action rules as context. Test carefully before production. ### How does handover work? Train instructions for escalation; use **Assign to team** / **Add comments**. Backend also supports keyword handover on bot reply text (API field; dashboard control may be coming). ### Does the bot post internal notes? When **Add comments** action is enabled with appropriate instructions — internal only, not sent to customer. *** ## Default agent & welcome message ### Can new threads auto-get a bot? Yes if workspace **default AI Agent** is set (admin/API). Overrides per thread in **Chat**. ### Is there a welcome message? API supports `welcome_message`; shown in test panel. Dashboard editor may be limited — check current agent detail. *** ## Billing & limits ### Starter user can’t create agents? Upgrade to **Growth** for custom AI Agents. ### Do AI Agents count toward contacts? Customer messages handled by bots still flow through your channels and contact billing like human-handled threads. *** ## Co-Admin tools ### Can Co-Admin count our agents? Yes — workspace overview includes `ai_agents.total` and counts by status. ### Can Co-Admin assign agents in Chat? Co-Admin guides navigation; assignment is done by the user in **Chat**. *** ## Related docs * [AI Agents overview](/ai-agents/ai-agents-overview) * [Creating & training agents](/ai-agents/creating-and-training-agents) * [Assigning agents in Chat](/ai-agents/assigning-agents-in-chat) * [Knowledge sources & testing](/ai-agents/knowledge-sources-and-testing) * [Inbox FAQ](/inbox/inbox-faq) * [Billing FAQ](/billing/billing-faq)