How to Vibe Code an MVP, Step by Step
The founders who get the most from vibe coding don’t start by typing ‘build me an app’. They write a short spec, build one flow at a time, and test with real users before adding more.
How do you vibe code an MVP?
Write a one-page spec, pick a tool that suits your skills, connect GitHub, and build the single most important user flow first. Test it with a few real users, fix what matters, then add the next flow. Before real customers’ data goes in, have someone review security and database rules.
What are the steps?
The steps keep scope small and give you something testable quickly. Most founders can reach step five in days with a browser app builder, and the security review in step seven is the one founders most often skip.
- Write a one-page spec: who the user is, the one job, the screens, the data.
- Pick a tool: see the tool comparison.
- Connect GitHub: before you build anything you’d mind losing.
- Build one core flow: the path from sign-up to the main result.
- Test with five real users: watch them use it; note where they get stuck.
- Fix and simplify: remove what they didn’t use.
- Review security: login, data access rules and API keys, before real data.
- Launch small: a few customers first, then widen.
How should you write prompts?
Write prompts the way you’d brief a contractor: who the user is, what they’re trying to do, what the screen shows, and what should happen when something goes wrong. Ask for one change at a time, and describe the result you want rather than the code.
| Weak prompt | Better prompt |
|---|---|
| “Build a CRM.” | “Build a page where a sales rep sees their 20 open deals, sorted by close date, and can mark one as won or lost.” |
| “Fix the bug.” | “When I save a deal without a close date, the page goes blank. It should show ‘Add a close date’ under the field.” |
How do you keep scope under control?
Keep scope under control by writing down what’s out, not only what’s in. Leave admin panels, settings pages, integrations and extra user roles for later unless the core flow needs them. What an MVP should include is covered in the MVP Development guide, and what to build before fit in what to build before product-market fit.
Ship one flow, not ten features.
An app that does one job well teaches you more than one that does ten jobs badly.
What should you check before launch?
Before launch, check that data is protected by access rules, API keys aren’t visible in the browser, sign-up and password reset work, errors show helpful messages, and you have backups. The full checklist is on vibe coding security risks.
Frequently asked questions
How do I vibe code an MVP?
Write a one-page spec, pick a tool, connect GitHub, build one core flow, test with real users, review security, then launch small.
How long does it take to vibe code an MVP?
A simple first flow can take days with an app builder; a reviewed, launchable version usually takes weeks.
What should my first prompt be?
A clear description of the user, the one job, the screens and the data, like a brief to a contractor.
Should I build everything at once?
No. Build and test one core flow, then add the next.
When should I connect GitHub?
Before you build anything you’d mind losing.
What should I check before launch?
Data access rules, API keys, sign-up and password reset, error messages and backups.