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Harden

It works for 2 users. Let's make it work for 10,000.

Production-ready without a rewrite.

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Scan report · yourapp.comExample
  • Row-level security disabled on user tablesCritical
  • API key exposed in frontend codeCritical
  • No staging environment before deployHigh
  • AI calls have no cost limit or fallbackMedium
Who it's for

Who Harden is for

For apps built with AI tools like Lovable, Bolt, Replit, v0 or Cursor that work in a demo but aren't ready for real users: data that leaks between accounts, secrets in the frontend, payments that fail silently. Harden keeps what works and fixes what doesn't, without a rewrite.

Works with apps built in
  • Claude
  • ChatGPT
  • Replit
  • Bolt
  • Lovable
  • v0
  • Cursor
  • Figma
  • Supabase
  • Firebase
  • Vercel
What's going wrong

Signs you need Harden

  • Tables designed for one user
  • Logins that hide buttons but don't protect data
  • Two people booking the same slot
  • API keys sitting in frontend code
  • No staging: every change goes straight to real users

What you get with Harden

  • Permissions enforced on the data, not just the screen
  • Secrets removed from code and rotated
  • Payments and failure paths handled
  • Concurrency made safe
  • A separate staging environment
  • Tests for the flows that matter
  • Handover documentation
How it runs

How Harden runs

  1. First: a Scan, or your existing report, sets the findings
  2. Then: scope and acceptance criteria agreed in writing
  3. During: fixes built and tested against the agreed list
  4. Finally: handover, with a walkthrough of what changed

Agents involved

BuilderWrites code to the agreed BlueprintCheckerTests every changeGuardFinds security gaps and exposed secrets

Signed off by a TechTose architect.

Related work

Harden in production

Related reading

Guides for Harden

Related products

Often paired with Harden

Lift

A migration with a dry run first and backups in place.

“Our platform went down. We need to move off it.”

Build Sprint

A new product or internal tool built to a Blueprint, at a fixed scope.

“I know what I want. Build it right, and fast.”

Harden: questions

Do we have to rewrite the app?

Usually not. Most AI-built apps need hardening, not a rewrite. We keep what works and fix what doesn't.

Which tools do you work with?

Apps started in Replit, Bolt, Lovable, v0, Cursor, Claude and similar tools, on stacks like Supabase, Firebase and Vercel.

Who owns the code afterwards?

You do, from day one.

AI tools are everywhere. Teams running them reliably in production are still rare. We're one of them.

See how a Scan works

Send us your app, or your idea. Get a straight answer in 48 hours.

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