Architecture in Vibe Coding: How to Design Apps That Don’t Fall Apart When AI Writes the Code

You built something real with vibe coding. It worked until one small prompt quietly broke something you never touched.That moment isn't bad luck. It's the predictable result of skipping the one skill vibe coding tutorials rarely teach: how to think about your app's architecture before you start prompting.Architecture in Vibe Coding closes that gap. Instead of syntax or setup guides, this book gives you a simple, repeatable way to see any app you're building, habit tracker, invoice tool, side project, real product, clearly enough that AI can build it without slowly wrecking itself as it grows.You do not need a computer science degree. You do not need to write code by hand. You need to know three things: what the pieces of your app actually are, how they connect, and what to tell your AI coding tool so it protects those connections instead of accidentally breaking them.Inside, you'll learn: - The three-layer framework that instantly shows you where any bug or feature actually belongs- Why AI coding tools default to fragile shortcuts, and the exact wording that stops them- A five-part prompt structure that turns a simple feature request into instructions your AI can't misread- How to catch a destructive database change before it wipes real user data- The habits that keep a growing app legible to both you and the AI writing its code- Three complete case studies: a simple app built right from the first prompt, a high-stakes app handling real money, and a messy app audited and repaired without a rebuildWhether you're using Claude, ChatGPT, Cursor, or any other AI coding assistant, the architecture underneath your app is still yours to design. This book teaches you how, one clear decision at a time.If a fix has ever broken something else in your app, or you're about to start building and want to get it right from the first prompt, this book is for you.