Vibe coding is useful when you want to test an idea fast. It becomes risky when another person depends on the result. A button that works once may still charge twice, expose a private record, or lose an upload.
This guide gives you a plain risk test. It shows when you can keep experimenting, when to add a careful AI-assisted process, and when an experienced developer should review the app.
What changes when someone else uses your app?
A personal experiment makes a small promise. If it breaks, you can stop using it. A customer-facing product makes bigger promises about privacy, money, saved work, and access.
The important question is not how the code was written. Ask what harm a mistake could cause and whether you can prove the important paths work.
How is AI-assisted development different?
Vibe coding steers by watching the screen. AI-assisted development still uses AI, but the person asks what changed, checks the work, and keeps evidence that it behaves as expected.
| Question | Low-risk experiment | Real product |
|---|---|---|
| Who uses it? | You or a small test group | Customers or a team |
| What can be lost? | Replaceable test data | Money, private data, or important work |
| How is it checked? | Try the main path | Test success, failure, permissions, and recovery |
| Who owns the result? | The experimenter | A named person who can explain and maintain it |
Simon Willison draws the same line in “Not all AI-assisted programming is vibe coding.” AI can write the code while a person still reviews, tests, and owns the result.
Which projects can stay low-risk experiments?
Vibe coding is a reasonable fit when all of these statements are true:
- The app uses fake or replaceable data.
- It cannot move money or make a paid outside service run without a clear limit.
- Only you, or people who understand it is an experiment, will use it.
- A failure will not block important work or affect a person's rights.
- You can delete the project without harming anyone.
Even here, save a known-good copy before a large change. Fast experiments are more useful when you can return to the last version that worked.
Which warning signs require stronger review?
- Private data: the app stores names, messages, documents, locations, or customer records.
- Identity and permissions: people sign in and should see different information.
- Money: the app charges, refunds, pays out, or calls a service that bills by use.
- Important decisions: the result affects health, legal rights, hiring, credit, or safety.
- Hard-to-replace work: a failure could erase files, orders, or business records.
- Public access: strangers can send requests or upload content.
One warning sign does not mean you must rebuild everything. It means the risky path needs a clear owner, a test, and evidence before release.
What should the AI check before release?
- Inspect before editing. Ask which files, data, outside services, and permissions the feature touches.
- Name the failure cases. Include expired sign-in, repeated clicks, missing data, slow services, and denied access.
- Write pass-or-fail checks. Each check should state an action and the result that must appear.
- Run the available checks. Ask for the command, result, and any part the AI could not verify.
- Report remaining risks. “Done” is not evidence. The report should separate facts from guesses.
Copy this request: Inspect this feature before changing it. List the customer data, private actions, outside services, and failure cases it touches. Propose pass-or-fail checks. Do not edit files until I approve the plan.
What must you test yourself?
AI can run code checks, but you should still use the public app like a customer.
- Open a private browsing window and create a new account.
- Complete the main journey, refresh, and sign in again.
- Use a second account and confirm it cannot reach the first account's data.
- Try one invalid input, one repeated click, and one unavailable outside service.
- Check a phone-sized screen and a deeper page, not only the home page.
- Confirm that you know the last working release and the recovery step.
When should an experienced developer review it?
Ask for human review before release when a mistake could expose data, move money, affect a person's rights, or stop essential work. Review is also useful when the AI cannot explain a change or cannot run the important checks.
Give the reviewer a small package: the customer journey, the risky actions, the changed files, the test results, and the open questions. This is more useful than asking, “Is my whole app safe?”
How do you know the review is done?
| Area | Evidence you should have |
|---|---|
| Main journey | A new user completed it at the public address |
| Permissions | The two-customer access test passed |
| Failure | The app showed a useful message and did not repeat the action |
| Data | Saved work survived a refresh and a new release |
| Recovery | The last good release and owner are recorded |
If one row has no evidence, that part is still an experiment. Keep it private or reduce its scope until you can test it.
What should you read next?
- Before AI Writes Code, Ask It to Inspect Your App
- Make Your Coding AI Test Its Work
- AI App Launch Checklist for Solo Founders
When the evidence is ready, visit JustDeploy to give your coding AI a repeatable path to a live app.