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Your Lovable App Broke After 200 Prompts. Here's Why — and How to Get It Back.

· 5 min read
Codalio Team
Codalio Team
AI app builder team

It's not your prompting. Your app breaks because there's no single source of truth underneath it. Every prompt asks the AI to re-guess what you meant, so fixing one thing quietly breaks two others.

The fix isn't another prompt. It's turning your existing code back into a spec — a PRD that becomes the source of truth — and then rebuilding on a foundation you actually own.

Why does my vibe-coded app keep breaking when I fix it?​

You know the loop. You ask the AI to fix the filter — the table stops loading. You fix the table — the filter disappears. You fix that — the login screen throws an error you've never seen. The vibe-coding community has a name for this: the "fix-and-break" cycle, and it's the defining experience of building with these tools when you can't read the code yourself.

There's a documented reason behind it. Code quality degrades over long sessions — the 50th prompt produces worse code than the 5th. The model has no durable memory of what the app is supposed to be, so each edit is a fresh guess layered on top of the last one. "Almost works" keeps you prompting, keeps you paying for one more round of tokens, and keeps the AI fixing one thing while breaking two more.

What's actually going wrong under the hood?​

The problem isn't the AI's coding ability. It's that your app has no product definition — no living document that says what each feature does, how the data is structured, and how the pieces connect. Developers call this the source of truth. Vibe-coding tools skip it: you prompt, they generate, and the "plan" exists only in a chat history nobody can maintain.

Without that spec, three things happen as your app grows:

  • Regressions multiply. Each change can silently undo an earlier one because nothing enforces how features are meant to fit together.
  • Security gaps slip in. Independent testing finds that 40–62% of AI-generated code ships with security flaws — exposed API keys, broken auth, missing input validation.
  • Nobody can hand it off. A real developer can't pick up a black box of AI-generated code with no spec, so you're locked into re-prompting forever.

60%+ of vibe-coded apps tested in Q1 2026 exposed API keys or database credentials. A scan of 5,600 vibe-coded apps found 2,000+ vulnerabilities, 400+ exposed secrets, and 175 instances of exposed personal data.

How do I rescue a broken vibe-coded app?​

Stop prompting and start with a spec. The rescue path has three steps:

  1. Turn your code back into a PRD. Point a Code→PRD audit at your existing repo. It reads what you've already built and reconstructs the product definition — features, data model, and architecture — as a document you and any developer can actually read.
  2. Make the spec the source of truth. Now the architecture updates when your idea does, instead of drifting every time you prompt. The definition drives the build — not a buried chat log.
  3. Rebuild on a foundation you own. Regenerate clean, production-grade code from the spec, on an open-source core you keep. No black box, no lock-in, no fix-and-break.

That's the whole idea behind Codalio: your product definition becomes the living source of truth, so what you've already vibe-coded becomes the starting point for something you can trust in production — not a dead end.

Should I just start over instead?​

Almost never. You've already made hundreds of decisions inside that app — that's real product thinking, not wasted work. A Code→PRD audit captures those decisions instead of throwing them away. You keep the intent; you replace the fragile foundation.

FAQ​

Why does my Lovable / Cursor / Bolt app break when I add features? Because there's no spec enforcing how features connect. Each prompt regenerates code from scratch, so new work overwrites old work. A PRD fixes this by giving the build one consistent source of truth.

Is AI-generated code safe to put in front of real users? Not without review. With 40–62% of AI-generated code containing security flaws, code headed for production needs a real architecture and validation — which is exactly what building from a spec gives you.

Do I lose my work if I move to a spec-first rebuild? No. The audit reads your existing repo, so your features and logic carry over into the PRD. You're upgrading the foundation, not starting from zero.

Get your free Code→PRD audit​

Send us your repo and we'll turn it into a real product spec — features, data model, and architecture — so you can see exactly what you've built and rebuild it to ship.

Start with the AI PRD Generator, or book a demo.

Building with these tools? Compare notes with other builders in the Codalio Discord.