Subak
Vibe-coding, done right

Find out if your vibe-coded app is ready before your users do.

You built your app by talking to AI, and it works. What you can't see is whether it holds up once real users arrive. Subak checks it for the bugs and broken logic vibe coding leaves behind, then tells you what's wrong in plain English.

subak · readiness check
checking
Checkout can charge a customer twice
no guard on repeat submits
High
Loads the whole table on every visit
won't scale past a few hundred rows
High
Errors fail silently, users see a blank page
no handling on the data path
Med
3 issues · plain-English fixes ready view report
Before your users find it
The risk

AI writes working code. It also writes invisible bugs.

Vibe-coding tools optimize for a working demo, so the parts that keep an app standing in production get skipped. The same gaps turn up again and again in AI-built apps: logic that drifts from what you asked, code that falls over under real load, failures with no handling, edge cases no one covered. You won't spot them, because you didn't write the code and it looks finished. Your users will.

“It runs” and “it's ready” are not the same thing.

A working demo proves the happy path runs once. It tells you nothing about the tenth user, the empty form, or the change you ship next week.

What it checks

What Subak looks for in your AI-generated code

Subak reads your code like a senior engineer, checking where vibe coding goes wrong most often. Every finding says what it is and why it matters.

Doesn't match your spec

Features that quietly do something other than what you asked the AI to build.

Breaks under real load

Queries and loops that are fine in a demo but fall over with real users and real data.

Unhandled failures

No plan for when the network drops, input is empty, or a call fails, so users hit blank screens and lost work.

Missing input checks

Data accepted without validation, so bad input corrupts your state or crashes the page.

Logic that drifts

Behavior that quietly changes as the codebase grows and contradicts what you built it to do.

Every finding

comes back with what it is, why it matters, and a fix you can paste straight into your AI tool.

See your architecture

See how your app is built.

Subak maps your project into a dashboard, so you can see how the pieces connect even though you didn't write them. When a finding points to your login flow or database, you see exactly where it lives.

codebase-map 142 files6 modules
app auth payments api ui db
clear needs a look risky
What you get

A plain-language report you can act on

You get a clear list of what's solid and what's risky, sorted by impact, each fix written to paste straight into your AI tool. When you're ready to raise or land your first customer, a signed certificate proves the code was checked, hard proof when you're a team of one.

Checkout can double-charge Fix first
Add an idempotency key so a repeated submit resolves to a single charge.
Certificate ready Signed

Hard proof the code was checked, to show investors or your first real customer.

Common questions

Vibe coding, answered

Building with AI and not sure what to check before you ship? These are the questions founders ask us first.

Ask a question
01 Is AI-generated code ready to launch?

Not on its own. AI tools build for what works in the demo, so they routinely skip the things that keep an app standing in production: error handling, edge cases, and code that scales. It's in much better shape once it's been checked, which is what Subak does.

02 How do I know if my vibe-coded app is ready?

You check it. The common problems (logic that drifts from what you asked, code that buckles under load, failures with no handling) are invisible in the working app and only show up when you look at the code. Subak looks for them and reports back in plain English.

03 What usually goes wrong in vibe-coded apps?

Logic that doesn't match what you asked for, code that falls over under real load, missing error handling, unvalidated input, and architecture that makes the next change risky. These show up again and again in AI-built apps.

04 Do I need to be technical to use Subak?

No. Subak is built for founders who built with AI and can't read the code themselves. Every finding is explained in plain language, with a fix you can hand straight to your AI tool.

Launch with your eyes open.

You built the thing. Subak helps make sure it's ready for real users, so your launch is the story you wanted.

Get early access