I’ve been fixing vibe-coded SaaS products for 6 months. The same four things are broken every single time.

Not hating on vibe coding. Relying heavily on AI generation gets you to launch, and that matters more than most traditional engineers will ever admit. But eventually, founders who built their product in a weekend with Cursor—got a few hundred users, maybe some early revenue—hit a wall. They get stuck.

They can’t close enterprise deals. They can’t pass a security review. They can’t onboard a second developer without them quitting in a week. Their Stripe integration works until it doesn’t, and nobody knows why.

This is the Vibe Hangover.

Here is what we keep finding under the hood, and how the ݆𝚅𝚒𝚋𝚎𝚌𝚛𝚊𝚏𝚝𝚎𝚍. vc-marbles stabilization loop fixes it.

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1. Auth is held together with tape.

The Accusation: NextAuth setups where every user is either “admin” or “user.” No role-based access. No row-level permissions. No audit log. Session tokens sitting in local storage like it’s 2019.

It doesn’t matter when you have 50 users who trust you. It kills you when an enterprise prospect’s security team runs a review. We’ve seen founders lose a $40k annual contract because the prospect’s IT flagged their auth in the first 10 minutes of a technical review. The product was solid. The architecture screamed “weekend project.” The deal died on the spot.

The Vibecraft Fix (Marbles Loop 1): We don’t rebuild the app. We audit data mutations, ensure database queries mandate userId or tenantId strict scoping, and fortify the session handling until the security review passes.

2. One God Table with 35 columns.

The Accusation: Claude loves throwing everything into one Prisma model. It works fine until you have 10k rows and every page load takes 4 seconds because there is no indexing and you rely on full-table scans for every request.

One founder was paying Vercel $300 a month because their serverless functions kept timing out on heavy queries and retrying infinitely. By moving them to a properly indexed Postgres setup with actual relations, the bill dropped to $40. Same app. Same traffic. Just not doing stupid things with the database anymore.

The Vibecraft Fix (Marbles Loop 2): Break down the God models into normalized relations where it actually hurts performance. Add missing indexes mapped by loctree. Destroy the N+1 queries the ORM hides from you.

3. No error handling anywhere.

The Accusation: When everything works, everything works. When one thing breaks, the whole app goes down because nothing is caught. API calls fail silently.

Webhooks crash and lose data. Stripe events get missed because the endpoint returns a 500 and Stripe gives up retrying after 3 days. One founder was “randomly” losing about 8% of subscription payments for two months. It wasn’t random. The webhook handler crashed on a specific edge case with annual billing, leaving paying customers deactivated. They found out because customers emailed them—not because their system alerted them.

The Vibecraft Fix (Marbles Loop 3): Implement strict error boundaries and fallback mechanisms on the financial boundaries. Manage, log, and make API failure paths actionable.

4. Deployments are “push to main and pray.”

The Accusation: No staging environment. No tests. .env files committed to the repo with live keys.

Rollbacks mean reverting a commit and hoping the database migrations don’t conflict. One bad deploy on a Friday afternoon took a client’s app down for 11 hours because they had no way to roll back a Prisma migration that deleted a column they still needed. Users saw a blank screen all weekend. They churned 15 paying accounts from that single incident.

The Vibecraft Fix (Marbles Loop 4): Add a deployment pipeline with basic smoke testing on critical paths (like the payment loop) that blocks catastrophic releases before they reach production.

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The Answer Isn’t a Rewrite

Traditional developers look at a vibe-coded codebase and give you the standard answer: “Burn it down, rebuild from scratch.” That is a 3-month project that kills momentum and might kill the company.

What actually works is stabilization.

Fix the auth properly. Add error handling on the critical paths. Index the database. Set up a basic deploy pipeline with rollbacks. Add ONE integration test for the payment flow so you stop losing money in your sleep.

With the ݆𝚅𝚒𝚋𝚎𝚌𝚛𝚊𝚏𝚝𝚎𝚍. framework, this isn’t a 3-month rewrite. It’s a 2-to-3-week stabilization sprint (vc-marbles). Your users won’t notice that anything changed visually. But the foundation will now hold weight, allowing you to confidently sell to companies that do technical reviews before signing a check.

If you built something that people are actually using and paying for, you already did the hardest part. The code underneath just needs to grow up with the business.

Od pół roku naprawiam vibe-codowane produkty SaaS. Cztery te same rzeczy są zepsute za każdym razem.

Nie hejtujemy vibe-codingu. Mocne wsparcie generacji AI dowozi cię do launchu — a to liczy się bardziej, niż większość tradycyjnych inżynierów kiedykolwiek przyzna. Ale w pewnym momencie founderzy, którzy zbudowali produkt przez weekend z Cursorem — pozyskali kilkuset użytkowników, może pierwszy przychód — uderzają w ścianę. Utykają.

Nie domkną enterprise dealów. Nie przejdą security review. Nie zatrudnią drugiego developera bez tego, by ten zwolnił się w ciągu tygodnia. Ich integracja ze Stripem działa — aż pewnego dnia nie działa, a nikt nie wie dlaczego.

To jest Vibe Hangover — kac po vibe-codingu.

To, co znajdujemy pod maską produktów, i to, jak pętla stabilizacji vc-marbles ze frameworka ݆𝚅𝚒𝚋𝚎𝚌𝚛𝚊𝚏𝚝𝚎𝚍. to naprawia — opisaliśmy w pełni w angielskim manifeście (cztery oskarżenia: auth na taśmie klejącej, jedna boska tabela, brak error handlingu, deploy “push to main and pray”).

Pełne polskie tłumaczenie wkrótce. Pierwsza wersja świadomie publikowana po angielsku, aby zachować głos operatora bez utraty znaczenia. Polski przekład powstaje w trybie human-curated, nie maszynowym.

Tymczasem zachęcamy do przeczytania pełnej wersji EN — ten sam głos, te same fakty z terenu, te same cztery cięcia.