What to Check Before Launching a Vibe-Coded MVP

Launching a vibe-coded MVP is the moment where “it works on my machine” has to become “it works for strangers.” Most of the gaps that show up after launch aren’t dramatic failures — they’re small, unglamorous things that never came up while the product was being demoed to friends. This is a practical checklist for closing those gaps before you open the doors, organized around the areas founders most often forget, not just the code.

Product: Does the Core Journey Actually Hold Up?

• Walk through the primary user journey as a brand-new user with no prior context, not as the person who built it.
• Confirm the journey works for a second user at the same time as the first — many vibe-coded builds have only ever been tested by one person.
• Check what happens on every “unhappy path” you can think of: wrong password, expired session, empty form submission, back-button navigation mid-flow.

Code: What’s Actually Being Shipped

• Confirm the source code is genuinely accessible and owned by you, not locked inside a platform you can’t export from.
• Do a focused code review on the highest-risk areas — authentication, payments, and anywhere user data is written or read.
• Look specifically for logic duplicated across features that were generated in separate prompting sessions; these tend to drift out of sync in ways that only surface later.

Security: The Checks Founders Most Often Skip

• Verify access controls actually restrict what each user can see and do — this is easy to get wrong quietly in AI-generated code, since a prompt rarely specifies “and make sure user A can’t see user B’s data.”
• Confirm no API keys or credentials are hardcoded into the codebase.
• Check that passwords and sensitive fields are properly hashed or encrypted, not stored in plain text.

This deserves its own deeper pass if your product handles anything sensitive — see the fuller security checklist for vibe-coded MVPs for a security-specific walkthrough rather than the summary version here.

Data and Legal: The Non-Technical Basics

• Have a basic privacy policy and terms of service in place if you’re collecting any user data at all — this is a launch blocker, not a nice-to-have.
• Confirm you know what data protection rules apply based on where your users are located, even at a basic level.
• Check that user data can actually be deleted on request — a surprising number of fast-built MVPs never implement this because no prompt asked for it.

Operations: What Happens After You Hit Launch

• Set up basic monitoring and error alerts so problems are visible to you before a user has to report them. What to actually monitor after launch is worth a closer read if this is new territory.
• Confirm backups are configured and that you’ve actually tested restoring from one, not just assumed the setting works.
• Have a plan — even an informal one — for who responds if something breaks in the first week.

Performance: Beyond the Demo

• Load the product with more realistic data volume than the handful of test records used during development.
• Test what a slow network connection does to the core journey, not just a fast office connection.
• If growth is a near-term goal, a lightweight check now is far cheaper than an emergency scalability review after a traffic spike breaks something.

Quick Reference: The Pre-Launch Pass

Area	Minimum check before launch
Product	Core journey tested by more than one user
Code	Owned, accessible, and reviewed in the highest-risk areas
Security	Access controls, no hardcoded secrets, data properly protected
Data & legal	Privacy policy, terms of service, deletion request handled
Operations	Monitoring, backups, and a response plan in place
Performance	Tested beyond demo-scale data and ideal network conditions

If this list feels heavier than the vibe-coding process that got you here, that’s expected — prompting for features and verifying they’re launch-safe are genuinely different activities, and this checklist exists specifically to cover the second one.

What If You Don’t Have Time to Check Everything?

Prioritize by consequence, not by convenience. Security and data-handling gaps can cost you trust and users permanently; a missing “forgot password” edge case costs you an annoyed support ticket. If time is limited, work down the list in the order above — product and code first, since everything else assumes those are solid, then security and legal, with operations and performance as the areas most safely deferred a little if genuinely necessary.

Who Should Actually Run This Checklist

For a very small, low-stakes launch, a technically capable founder can work through most of this list themselves — it’s written to be usable without a dedicated engineering team. Where it’s worth bringing in a second set of eyes is the code and security sections specifically: it’s genuinely hard to review your own AI-generated code objectively for gaps, because you already know what it’s supposed to do and tend to test it that way rather than the way a stranger would use it.

A useful middle ground for founders without a technical co-founder is to run through the product, data/legal, and operations sections independently, then bring in a short, focused technical review just for the code and security sections rather than a full engineering engagement. That keeps the cost proportional to a small MVP while still covering the areas where self-review is least reliable.

How This Differs From an Ongoing Process

It’s worth being clear that this checklist is a pre-launch gate, not a substitute for ongoing attention afterward. Passing every item here doesn’t mean the product is finished being reviewed — it means it’s cleared the minimum bar to open its doors safely. New features added after launch reset parts of this checklist, particularly the code and security sections, since each new feature is a new opportunity for the same kind of gaps this list catches. Treating launch-day readiness as a permanent state, rather than a snapshot, is a common way founders get caught off guard by a bug or security gap introduced well after the original checklist pass.

The Bottom Line

A vibe-coded MVP that demos well isn’t automatically ready to launch — readiness lives in the parts a demo never shows: how it handles a second user, what happens when something goes wrong, whether user data is actually protected, and whether you’ll know if something breaks after you stop watching. Running through this checklist before launch is a few days of focused work that prevents most of the post-launch surprises founders regret not catching sooner.

Frequently Asked Questions

What's different about launching a vibe-coded MVP versus a normally built one?

The core checks are the same, but vibe-coded MVPs more often skip steps that aren't visible in a demo — like error handling, data ownership, and basic legal pages — because those weren't part of what was prompted for.

Do I need a lawyer to launch a vibe-coded MVP?

Not necessarily, but you do need basic terms of service and a privacy policy if you're collecting any user data, and you should know what data protection rules apply to your users' location. A short review is worth it before public signups open.

Is it safe to launch a vibe-coded MVP without monitoring in place?

It's launchable but risky — without monitoring, you'll typically learn about problems from angry users rather than from the system itself, which costs more trust than the same bug caught quietly.

How long does a pre-launch check for a vibe-coded MVP usually take?

For a small MVP, a focused pre-launch review typically takes a few days to a couple of weeks, depending on how many gaps the review finds — it's a checklist pass, not a second build.