SHIPCHECK — a pre-flight check for vibecoded apps

Your app works.
But is it safe to launch?

You built it with AI. It runs. And you still haven't posted the link — because you're not sure what a stranger could do to it. ShipCheck runs five plain-language checks against your live, running app, shows you proof of anything broken, fixes it on its own branch, and proves the fix works. You review. You click merge. Then you ship.

One-time purchase · Runs in Claude Code · Never touches your live app · Never merges anything

SHIPCHECK REPORT — myapp.vercel.app — 2026-07-24

🔴  Do not ship.

1  Who can read your data      BLOCKER   3 customer rows returned to an anonymous
                                          request. Nobody was logged in.
2  Two-account leak test       pass      Account A could not read Account B's orders.
3  The bill that lands on you  BLOCKER   AI endpoint answered 15/15 requests.
                                          No rate limit found.
4  The money path              pass      Webhook rejected a forged "payment
                                          succeeded" event.
5  Can anyone find you         BLOCKER   Your link posts as a blank box — no title,
                                          no preview image.

3 fixes ready on branches:
  fix/shipcheck-data_read-2026-07-24
  fix/shipcheck-cost_ratelimit-2026-07-24
  fix/shipcheck-discoverability-2026-07-24

Merge, redeploy, re-run. That's what turns this green.

Real output format. Every blocker comes with redacted proof — not a guess. See the full sample report →


01

The link you're afraid to share.

You built a real app with AI. It works. The demo impressed your friends. And the launch post is still sitting in drafts — because somewhere in the back of your head a voice keeps asking:

What if someone opens the database? What if a stranger runs my OpenAI bill to $400 overnight? What if the payment form just… believes anyone who says "I paid"?

That voice is right to ask. AI-written apps ship with the same handful of holes, over and over: a master key sitting in the frontend, a database that answers strangers, a webhook that trusts anyone. None of them show up in a demo. All of them show up in week one of real users.

A security scanner won't catch most of them — it can't log in as two different people and try to read the wrong one's data. ShipCheck can. That's the whole point.


02

Five questions. Answered against your live app.

Not a code lint. ShipCheck probes the deployed thing your users will actually touch.

1

Who can read your data

Could a total stranger, with no login, read data that should be private — or find a master key sitting in the open?

Proof: "3 rows including email, plan — returned to an anonymous request."

2

The two-account leak test

Logged in as one user, can you read another user's orders, messages, profile? The leak automated scanners can't find — it takes two real accounts.

Proof: "Account A requested Account B's orders — and got them."

3

The bill that lands on you

Is there an AI or paid-API endpoint a stranger could hammer, running up a bill on your card?

Proof: "15/15 requests answered, no slowdown. ~$200 per 10,000 requests, billed to you."

4

The money path

Could someone get your paid product for free by sending a fake "payment succeeded" message — or edit the price in their browser?

Proof: "Forged, unsigned webhook accepted. Product granted. No payment existed."

5

Can anyone find you

Share preview, robots.txt, sitemap, 404, security headers — or does your launch link post as a blank grey box?

Proof: "No preview title, description or image. Your launch post is invisible."

Verdicts are honest: pass · BLOCKER · not verified. When ShipCheck can't test your stack, it says so — it never guesses "OK".


03

Proof it's broken. Fix on a branch. Proof it's fixed.

Step 1

Proof

ShipCheck runs the exact probe and captures redacted evidence. The "before" picture. No "this is probably an issue."

Step 2

Fix, on its own branch

The smallest safe change, on fix/shipcheck-<check>-<date>. Never on main. Never on your live app.

Step 3

Re-proof

The fix is re-tested on a throwaway preview build. Same probe, broken → fixed, before your eyes. If the fix doesn't hold, ShipCheck reverts it and says so — it never pretends.

Built paranoid, on purpose:

It never merges. You review every branch and click merge yourself.
It never deletes, changes or overwrites anything on your live app — and never causes a real charge, email or shipment.
Active probes run only after you confirm — every run — that you own that exact URL. No stored blanket consent.
Test accounts and test data it creates, it cleans up.
Leaked secrets are shown only as "exposed secret #1" — never printed, not even partially, not anywhere.
At most 5 blockers per run, worst first. A ranked shortlist you'll actually fix beats a 40-item PDF you'll close.

04

The fine print, said out loud.


05

€9.99. Cheaper than one hour of "it's probably fine."

ShipCheck

€9.99 one-time

  • All five checks, unlimited runs, every app you own
  • Proof → fix branch → re-proof, every blocker
  • Report as local file or GitHub/GitLab issue
  • 12 months of updates
  • 14-day money-back guarantee
Get ShipCheck — €9.99

Superproject (includes ShipCheck)

€129 one-time

  • The full lifecycle layer for Claude Code: brief → backlog → implementation → review → MR
  • 10 skills, guardrails first — it never merges either
  • ShipCheck included as the final pre-launch gate
See Superproject →

Ship one app? ShipCheck. Ship every month? Superproject.


06

FAQ

Do I need Claude Code?+

Yes. ShipCheck is a Claude Code plugin — you run /shipcheck in your project, it does the rest. Works with any Claude Code plan.

Will it break my live app?+

No. Live traffic is read-only plus a handful of capped, self-cleaning probes (max ~15 requests, stops at the first pushback), and only after you confirm ownership. Fixes happen on branches and preview builds, never on production.

My app isn't Supabase/Stripe.+

You'll get the universal checks (data exposure scan, discoverability, code-level cost review) and honest "not verified" for the rest. Supported stacks are growing; you'll get those updates.

What if everything passes?+

Then you ship with proof instead of hope — that's the good outcome. If you feel you didn't get your money's worth, 14-day refund, no questions.

How is this different from a security scanner?+

Scanners read from outside. ShipCheck logs into your app with two test accounts and tries to read the wrong one's data, forges a payment event against your own webhook, and probes your cost brakes — the failures that actually burn first-time founders.

Do I need GitHub?+

No. Local mode is first-class: report lands in your repo, fixes on local branches.


Post the link. Sleep fine.

Five checks, real proof, fixes waiting on branches. The scary part of launching, handled in one run.

Get ShipCheck — €9.99

14-day money-back · Secure checkout via Stripe

Made with AI in Macaly