What Replit is and where things live

• Replit builds apps from a description. You type what you want in the prompt box, and Agent plans it, writes the code and runs it.
• A project holds your code, data and artifacts. An artifact is something you can publish, like a web app, a mobile app or a slide deck.
• The Agent Modes menu in the prompt box picks Free, Power or Max. Free uses your included allowance. Power and Max use credits, and Replit warns you before a request moves to a paid mode.
• Turn on the Plan toggle to talk ideas through first. In Plan mode, Agent reads your project but changes no files.
• Preview shows your app running. Publish, at the top right, puts it on a live address. Check how much Free allowance you have left in Settings > Usage.