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Replit Agent ward

Code review for apps built with Replit Agent

Replit Agent builds a full-stack app, gives it a PostgreSQL database and puts it on a public URL without you leaving the browser. Everything from the schema to the deploy is one conversation away.

That same closeness is what I check. You get a ranked list of what to fix, in plain English, with a fix prompt for each finding you can paste back into Replit Agent.

What Replit Agent usually generates

  • Express
  • TypeScript
  • React
  • Vite
  • Drizzle ORM
  • PostgreSQL
  • Passport.js
  • Tailwind CSS
X-rayserver/storage.ts1 fracture
export class MemStorage implements IStorage {
  private users = new Map<number, User>()
  async createUser(insert: InsertUser): Promise<User> {
    const user = { ...insert, id: this.currentId++ }
    this.users.set(user.id, user)
    return user
  }
}
  1. Line 1: Every account lives in a Map inside the Node process, so a restart or redeploy wipes them all; the Drizzle schema next to this file is never used.

Common problems in Replit Agent apps

Not every app has all of these. The report tells you which ones yours has, where, and what to do about each.

  1. Critical

    Test data that went live with the app

    Replit now gives every app a separate development and production database, and the agent cannot touch production. Older apps, and apps that copied development data into production at publish, still carry test accounts, seed data and every experiment in the live database. I check which database the published app uses and what is in it.

  2. High

    Schema changes pushed straight to the database

    drizzle-kit push applies whatever the schema file says, with no migration files and no way back. It is fine while you build. Once there is customer data, every push is an unreviewed change to a live database. The fix prompt moves you to migrations.

  3. High

    API keys that drifted out of the secrets tab

    Replit stores secrets outside the code, which is right. Keys still turn up pasted into a file as a fallback for when the variable did not load, or in a config committed to the repository. I find each one and tell you which to rotate.

  4. Medium

    One routes.ts with every endpoint

    Hundreds of lines of app.get and app.post in a single file, each one checking auth by hand or not at all. I group them, say which ones need middleware, and point out the ones that need it most.

  5. Medium

    Storage that forgets on every restart

    An in-memory storage class written to get the UI working, still wired in behind the same interface as the database one. Data looks saved until the next deploy. I check which one your app actually imports.

  6. Low

    Stack traces sent to the client

    An Express error handler that returns err.message, or the whole stack, in the JSON response. Useful while debugging, informative to anyone probing the API. The fix logs on the server and says less to the client.

Treatment plan

How it works

  1. Book a check-up

    Choose a tier and tell me where to send the report. Add your app's address if it is live. Two minutes, no sales call.

  2. Show me your code

    Pay by card, then give me read-only access to your code on GitHub (you paste in a key I send you) and let me into your app with test accounts. Never done that? I send you step-by-step instructions for your tool. I measure your app and confirm it fits before I start.

  3. Get your diagnosis

    Ready to launch, or not yet. Problems ranked, critical ones proven on your live app, each with a prescription for your AI tool. A PDF by email, then 7 to 30 days of questions by email.

  4. Fix it, then a free follow-up

    Fix the problems yourself, with your AI, or let me do it with the Fix Pack. Tell me within 30 days and I check once more that they are really gone.

Pharmacy

Pick your treatment

Same fixed prices, whichever tool wrote the code.

Check-up

Safety Scan

Is it safe to let real people in? The five things to fix first.

App size
Up to 20k lines of code
Ready in
2 business days

$149

Founding price for the first 10 customers, 10 left. Then $199.

  • A diagnosis: ready to launch, or not yet
  • The 5 problems to fix first, each checked by a human in your code
  • Every critical problem proven on your live app, with screenshots
  • Strangers in your users' data, leaked keys, payment holes, made-up packages
  • A prescription for each problem: a prompt for your AI tool
  • Discharge instructions for your AI, so it stops repeating them
  • 7 days of questions by email, so you are not alone with the report
  • A free follow-up check within 30 days, once you have fixed them
  • Want more afterwards? The price counts toward a Launch Review or Fix Pack within 30 days
Book Safety Scan

Surgery

Fix Pack

Don't want to fix it yourself? I do the fixing.

App size
Up to 30k lines of code
Ready in
5 business days

$1,499

  • A Safety Scan of your app, up to 30k lines of your code
  • A fix list with my time estimate. You approve it before I change anything
  • I fix the top problems myself, up to 6 hours of work
  • More to fix after that? I keep going at $199 an hour, only in blocks you approve first
  • Every change explained in plain English, with a "how to test this" note. Nothing goes live until you approve it
  • A second scan after the fixes, so you know they worked
  • 30 days of questions by email
Book Fix Pack

No idea how big your app is? That’s normal, and you never have to count anything. Book the review you want; I measure your app before I start and tell you. If it doesn’t fit, you choose: upgrade, narrow it down, or a full refund. “Lines of your code” means the code you and your AI wrote, not the packages and UI kit your tool installed; many apps built with Lovable, Bolt or v0 fit the Safety Scan.

Start small, upgrade later. The Safety Scan’s price counts in full toward a Launch Review or Fix Pack for the same app within 30 days of your report.

Why this price? Software does the first pass, so you pay for the part only a person can do: checking every finding in your code, proving the critical ones and deciding what matters for your app. I take at most 3 Safety Scans and 2 Launch Reviews (or one Fix Pack) a week; if this week is full, yours starts the next.

Prices in US dollars, paid once, no sales call and no surprise invoice: anything extra is your choice, told to you before I start. The clock starts when I can see your code. Reports arrive as a PDF by email, in English, or German if you prefer.

Need a few things fixed after a scan? I fix by the hour at $199, three hours minimum, with the list agreed before I start.

Bigger than 50k lines, or a real mess? Rescue jobs are quoted, from $3,000, no obligation. Email me.

Not for you if

  • you have a team of engineers who already review each other’s code,
  • your app’s backend isn’t JavaScript or TypeScript (Python Replit apps, for example), or it is over 100k lines,
  • you handle regulated data (health records, banking, children), or need a pentest, certificate or compliance sign-off. Taking card payments through Stripe is fine.

A review lowers your risk a lot. It can’t guarantee that your app is secure, and nobody honest will say otherwise.

Replit Agent questions

How do I share a Replit project?

Replit has a Git integration, so push the project to a GitHub repository and give me read-only access (I send you a key to paste in; it takes a minute). I also need the database schema, which is the Drizzle schema file plus a pg_dump --schema-only of the live database if the two have drifted.

My app is already deployed on Replit. Is it too late?

No, but it changes the order. I look first at anything that can lose or expose customer data: test accounts in production, schema pushes, public endpoints. The cleanup can wait; those cannot.

Can I apply the fixes with Replit Agent?

Yes, each finding has a fix prompt. For database changes the prompt asks for a migration rather than another push, so the change is something you can read before it runs and undo if it goes wrong.

Why not just ask my AI to review it?

Do, and I will even give you the prompt. You will get a long list. What your AI cannot do is tell you which items are real, prove them against your live app, see your database and hosting settings, or check that its own fixes worked. If you cannot read code, that is the part you cannot do yourself either. It is what you pay me for.

I'm not a developer. Is this for me?

Yes, that is exactly who it is for. If you built an app with AI and cannot tell whether the code is any good, I check it and explain what matters in plain English. You never need to understand the code to act on the report: every problem comes with a prompt you paste into your AI tool. And you do not need to know what to ask. The report answers the questions you would have asked if you knew how.

How do I show you my code?

Most AI builders can push your app to GitHub, a free site that stores code. You give me read-only access by pasting a key I send you into your repository settings, which means I can look but not change anything. Never done it? After you book, I send you step-by-step instructions for your tool. A zip file works too. When the report is delivered, remove my access again; I remind you.

Is my code safe with you?

Every booking comes with an NDA, automatically. I never sell, publish or pass on your code. The only other party that sees it is the AI provider that helps with the first pass, under terms that do not allow it to train on your code. I never need your passwords or your live database, and I delete my copy within 7 days of delivering the final report.

Find out what Replit Agent skipped.

From $149 for the first 10 customers (10 left). Ready within 2 business days. If the Safety Scan finds no problem rated medium or worse, you pay nothing.

Visiting hoursBook any time. I reply within one business day.