Your idea, turned into something buildable.

Copy it and paste it as your first message into Claude, Lovable, Bolt or v0. It asks the AI to describe the plan back to you before writing any code, so you catch a misunderstanding in a sentence rather than in a finished app.

No. The three questions that matter are what it does, who it is for, and the one thing someone must be able to do. Everything else is buttons. The brief translates your answers into the words a build tool needs.

Because the most common way a first build fails is being too big. Every feature you add to version one is another thing that can break before anyone has used it. The brief deliberately cuts your scope so you get something real in front of people sooner.

No, and that is on purpose. Your answers are assembled into the brief in your own browser, so nothing you type is sent anywhere, the tool is instant, and it stays free forever.