> ## Documentation Index > Fetch the complete documentation index at: https://docs.rerun.build/llms.txt > Use this file to discover all available pages before exploring further. # Quickstart > From signing up to a working agent. ## Before you start You need an account on [app.rerun.build](https://app.rerun.build) and a card on file. Rerun starts with a 7 day free trial and you can cancel anytime. Nothing to install. Everything happens in the browser. ## 1. Sign up Open [app.rerun.build](https://app.rerun.build). You land on the board, the isometric view where your Boxes and agents live, with a sign-in dialog on top. Right after signing up you answer three short questions about your sector, your team size and your role. They only decide which templates you get shown first. ## 2. Pick your first agent The template library opens on its own, filtered on the sector you picked. Two ways forward: A template is a setup that already works: a prompt, skills, scheduled tasks and the connectors it needs. Pick one, and Rerun creates the agents it contains in your account. Click **Start from scratch**, give the agent a name, and describe what you want it to do in the chat. It writes its own prompt from your description. ## 3. Place it on the board The toolbar switches to placement mode. Tap a tile and the agent takes its spot. Your first agent needs a Box, and Rerun claims one for you from a pool of ready machines. It takes a few seconds. A Box is a private cloud computer, isolated from every other account, and it will host every agent you place in it. ## 4. Run the guided setup An agent that came from a template usually needs to be connected to your own accounts. When it does, the chat opens on a **Start installation** button instead of a message box. Click it and the agent walks you through its own setup: it tells you what it needs, offers to install the connectors it is missing, and asks you for the values only you can give. You answer in the chat, exactly like a conversation. When it needs an API key, the agent opens a masked form. The value goes straight to your Box and is never shown to the agent or stored in the conversation. Never paste a secret into the chat itself. When the setup is done, the agent switches on the scheduled tasks and webhooks it shipped with, and tells you what it can do and when it will next run. ## 5. Talk to it You now have a normal message box. Ask it for something. While it works you see every step: the files it reads, the searches it runs, the tools it calls. If it needs a decision, it stops and asks you, right in the chat. ## 6. Let it run without you Two ways to make an agent work while you are away. A cron and an instruction. Every Monday at 9, summarise last week and email it to me. A public URL. When Stripe posts a refund, handle it. You can add both from the agent panel, or just ask the agent to set them up for you. ## Next steps