From Vibe-Coded MVP to Production: The Complete Checklist

You built it. It works. Now you're wondering if "works on your laptop" is the same as "ready for real users" — and it almost certainly isn't. Taking a vibe-coded MVP to production requires a specific set of technical checks that most AI coding tools skip entirely. This checklist gives you the exact steps, in order, to ship your app with absolute confidence.

Why the Vibe-Coded MVP to Production Pipeline is Different

When a traditional development team ships software, production-readiness is baked into the process. There are strict code reviews, isolated staging environments, and deployment checklists refined over years.

Vibe coding skips all of that — which is exactly why it is so fast. But the shortcuts that make the MVP fast to build are the same ones that make it risky to launch. Security wasn't in your prompt. Error handling probably wasn't either. The database might work fine with test data but completely crash under real load.

This isn't a reason to abandon AI coding tools like Cursor or Lovable. It is a reason to run through a rigorous checklist before you route real users to your domain. If you are not sure what kinds of architectural problems to expect, read our breakdown of why AI-generated code breaks at scale first.

Phase 1: Code Quality and Architecture Review

Before you touch infrastructure or deployment, you must understand the foundation you are actually deploying.

• Full Repository Review: Read through the codebase end to end. You don't need to understand every line, but you should know what each major folder and file does.
• Extract Secrets: Identify any hardcoded values (API keys, database URIs, JWT secrets). Move all of them immediately to secure environment variables.
• Prune Dead Code: Remove unused components, commented-out prompt experiments, and duplicate functions to reduce bundle size.
• Consolidate Logic: If the exact same logic is repeated in three different UI components, consolidate it into a single utility function.
• Verify Structure: Make sure your folder structure is consistent and would make logical sense to an outside developer.

Phase 2: The Production Security Audit

Security is the most common gap in vibe-coded apps and the most expensive to ignore. These checks are non-negotiable before launch.

• Environment Variables: Ensure no secrets exist in your frontend client code. Check that your .env file is safely registered in your .gitignore.
• Strict Authentication: Verify that every protected route or backend API endpoint actively checks if the user is logged in.
• Data Authorisation: Users must only access their own data. Test this by creating two test accounts and attempting to cross-access Account A's data while logged into Account B.
• Input Validation: All user-submitted data must be validated server-side before it is stored. Never trust frontend validation alone.
• SQL Injection Checks: If you are writing raw SQL queries, strictly use parameterised statements.
• Enforce HTTPS: Ensure your production domain serves traffic exclusively over HTTPS.
• Rate Limiting: Protect your login endpoints, password resets, and payment webhooks with active rate limiting to prevent brute-force attacks.

Phase 3: Performance Baseline & Database Scaling

Your app doesn't need to be perfectly optimised at launch, but it cannot fall over when ten people log in simultaneously.

• Database Indexing: Add indexes on any column you frequently filter, sort, or join on. Check your database console for inefficient "full table scans."
• The N+1 Query Check: Look for nested loops that make sequential database calls. Consolidate these into unified joins.
• Asset Optimisation: Large, unoptimised images destroy load times. Convert assets to WebP format, set explicit dimensions, and lazy-load images below the fold.
• Basic Caching: For data that rarely changes (configuration files, static lookup tables), implement a basic caching layer.
• Stress Testing: Use a free tool like k6 to simulate 50–100 concurrent users and monitor what endpoints break first.

Phase 4: Observability and Error Handling

Before you send real users to your app, you need telemetry to see what happens when things fail.

• Error Tracking: Integrate Sentry (the free tier is sufficient). Every unhandled exception should trigger an alert before a user has to report it.
• System Logging: Key user actions and system events should write to a searchable log.
• Uptime Monitoring: Set up an uptime monitor (like UptimeRobot) so you are notified immediately if your servers go down.
• Actionable Error Messages: Ensure every error state in your UI guides the user on what to do next. "Something went wrong" is not an acceptable error state.

Phase 5: Deployment and Infrastructure Setup

• Staging Environment: Maintain a separate environment that mirrors production to safely test changes before they go live.
• Zero-Downtime Deployment: Ensure you can push updates without taking the site offline (Vercel, Railway, and Fly.io handle this automatically).
• Automated Backups: Configure daily database backups and execute at least one manual test-restore to verify they work.
• Domain Configuration: Confirm your custom domain is connected, the SSL certificate is provisioned, and non-www correctly redirects to www (or vice versa).

Phase 6: Legal and Compliance Basics

Founders skip this phase constantly. It always comes back to bite them.

• Privacy Policy: If you collect any user data (including simple email addresses), you are legally required to have a privacy policy.
• Terms of Service: Protect your liability with basic terms before real users interact with the platform.
• Cookie Consent: If you serve users in the EU or UK and use analytics, implement a compliant cookie banner.

Phase 7: The Pre-Launch Smoke Test

Before you announce the product on social media, execute this final manual check:

• Create a brand new account from scratch and complete the primary user journey.
• Force every error state you can think of: submit empty forms, upload the wrong file types, input incorrect passwords.
• Test the entire UI on a mobile device.
• Run Google PageSpeed Insights and ensure your core landing page scores 80+ on mobile.
• Hand the app to someone who didn't build it and watch them navigate it without providing any instructions.

What To Do When the Checklist Surfaces Too Many Issues

If you've worked through this checklist and the number of architectural red flags feels overwhelming, you have two options: patch them systematically, or bring in professional help.

Mendly works with founders at exactly this critical stage — after the MVP is built, but before the public launch. We map out targeted rescue plans for specific tools; for example, if you are struggling with a complex AI codebase, you can review our Cursor fix page, our Lovable rescue process, or our v0 and Bolt stabilization workflows to see how we restructure those exact environments.

Ready to ship? Book a free pre-launch audit with Mendly and we will run through this checklist with you, flag the structural issues that actually matter, and make sure you are not launching with a hidden time bomb in your codebase.