Hiring a Developer to Fix Your Lovable App: The Brief Template

You built something real in Lovable. The landing page converts, users are signing up, Stripe is taking money. Then one feature stops working, or a prompt that used to ship clean code starts producing broken components, or Supabase throws an error you cannot decode. You need a human developer. The problem is that most of the developers you will talk to have never touched a Lovable project, and the ones who have will quietly propose rewriting the whole thing in the stack they prefer.

This is the brief template we wish every founder had before their first rescue hire. It covers what to put in writing, what files and access to share, what to fence off so the developer does not touch it, and how to scope the engagement tightly enough that it ends on time and on budget. More importantly, it covers the conversation nobody has upfront, the one about whether the developer is here to fix your app or rebuild it.

Why Most Lovable Rescue Engagements Go Sideways

A Lovable rescue engagement goes wrong in one of three predictable ways.

The first is the rewrite. A developer looks at a Lovable codebase, sees inline Tailwind classes, components that regenerate in patterns they would not choose, a Supabase schema they would have normalized differently, and decides the right move is to start fresh. Three weeks in, they have half a new app and none of the old features.

The second is the creep. The bug fix becomes a refactor. The refactor introduces a new bug. Fixing that bug reveals something the developer wants to clean up. The clean-up breaks deployment. The original thing the founder hired the developer to fix is still broken, and the invoice has tripled.

The third is the lock-out. The developer ships a fix, invoices, leaves. The founder opens Lovable the next morning, prompts a small change, and Lovable regenerates a file the developer had carefully refactored. The fix is gone. The founder now cannot use AI on their own codebase without breaking the developer's work, and cannot use the developer's work without abandoning AI iteration.

All three failure modes share one root cause. The developer and the founder have different incentives and neither said so out loud. The developer wants code they are proud of, that they control, that looks like every other React project they have worked on. The founder wants yesterday's working thing to be working tomorrow, plus one new feature, without giving up the speed that got them here. The brief is where you reconcile those incentives before any code is touched.

The Conversation to Have Before Signing Anything

There is one conversation that needs to happen before a developer opens your repo, and most founders skip it because it feels confrontational. It is not. It is the conversation that saves the engagement.

The sentence is simple. You tell the developer, directly, that you are not hiring them to rebuild your app. You are hiring them to fix a specific thing while preserving everything else, including your ability to keep iterating with AI after they are gone. You watch how they respond. A developer who says some version of "understood, I will work within your existing patterns and flag anything I think should change rather than changing it" is the developer you want. A developer who starts talking about how they would normally structure a project, or who describes the current code as messy without being asked, or who pushes back on the idea that AI-generated code is acceptable in production, is not malicious. They are just expensive. Their instinct is to ship their version of your app, and you are going to be paying for that instinct whether you want it or not.

The framing that works is this. Your Lovable codebase is not a first draft that a real developer will eventually clean up. It is the production system. It happens to have been written by AI under your direction, and you plan to keep writing it that way, and the developer's job is to work inside that reality, not to replace it with their preferred reality. If that framing does not land, keep interviewing.

What to Put in the Brief

The brief is a single document, one to two pages, that the developer reads before quoting and refers to throughout the engagement. If you cannot write it down, you are not ready to hire. Here is the template we use with every client who is bringing in outside help.

# Project brief: [Your product name]

## One-liner
[One sentence on what the product does and who it is for.]

## The stack, as it exists today
- Frontend: Built with Lovable (React, Vite, Tailwind, shadcn/ui)
- Backend: Supabase (Postgres, Auth, Storage, Edge Functions)
- Payments: [Stripe / none / other]
- Deployment: [Lovable hosting / Vercel / Netlify / other]
- Domain: [domain.com, managed via Cloudflare/Namecheap/etc]
- AI iteration: I plan to continue using Lovable and occasionally Cursor
  on this codebase after this engagement ends.

## What is working today (do not fix)
- [Feature A, describe briefly]
- [Feature B]
- [Feature C]
- The overall visual design and design tokens in src/index.css
- The Supabase schema and RLS policies as they exist
- The authentication flow
- Deployment pipeline to [target]

## What is broken (the actual scope)
- [Specific bug, with steps to reproduce]
- [Specific feature that is half-built, with definition of done]
- [Specific performance issue, with measurable target]

## Access being granted
- GitHub repository: [url], collaborator invite to [email]
- Supabase project: read-only invite first, write access only if we agree it is needed
- Deployment platform: [platform] collaborator invite
- Environment variables: shared via 1Password/Bitwarden, not pasted in chat
- Lovable project link (reference only, not for editing): [url]

## Do-not-touch list
- src/index.css design tokens and Tailwind config
- The component file structure as Lovable generates it
- The Supabase schema and RLS policies, unless the scoped bug requires a change and we discuss it first
- Package versions (do not upgrade React, Vite, Tailwind, or shadcn as a side effect)
- The AI iteration workflow, meaning do not introduce patterns that Lovable or Cursor cannot regenerate predictably

## Out of scope
- Refactoring code that is not part of the scoped bug
- Adding a test suite
- Migrating off Supabase
- Dockerizing or changing the deployment target
- Normalizing the database schema
- Introducing a state management library
- Any change to the public design

## Deliverable
- [Concrete, testable outcome, written as an acceptance criterion]
- Pull request to a branch named fix/[short-name], not merged to main by you
- A short written handoff explaining what was changed and why, in plain language

## Timeline
- Start: [date]
- Target delivery: [date]
- Hard stop: [date]

## Budget
- Fixed fee: [amount] for the deliverable above
- Out-of-scope work is re-quoted in writing before it starts
- No hourly rolling, no open-ended engagement

The brief does three jobs at once. It tells the developer what success looks like, it fences off the parts of the codebase you want preserved, and it sets the commercial structure so there is no incentive to expand the work. Read it back before you send it and ask yourself whether a developer could quote it without asking you five follow-up questions. If they could not, you have more work to do on the brief, not on the engagement.

The Do-Not-Touch List Every Lovable Brief Needs

Three things break AI iteration when a developer touches them, and all three will be the first things a careful developer wants to clean up. Your brief has to defend them explicitly.

The first is the design token layer. Lovable uses CSS variables defined in src/index.css and a Tailwind config that references them. When a developer sees inline Tailwind classes scattered through components, their instinct is to consolidate them into shared component classes or to replace them with a styled-components pattern. Doing either of these things breaks the visual consistency Lovable is maintaining for you, and it also means the next time you prompt Lovable to add a feature it will generate code that does not match the developer's new pattern. You end up with two visual languages in the same app.

The second is the Supabase schema. Founders often arrive at a Lovable rescue because something in their database layer broke. A developer looking at the schema will almost always want to normalize it, add foreign key constraints the AI did not add, rename tables to match a convention, or split a wide table into related narrower ones. Each of these changes is defensible in isolation and catastrophic in combination, because every one of them breaks the queries Lovable has already generated and the queries it will generate next time you prompt it. If the schema has to change, the change gets scoped, discussed, and reflected back into Lovable's context before the developer touches anything.

The third is the component structure. Lovable generates components in a specific pattern, with specific file names, specific export styles, specific prop shapes. That pattern is what lets Lovable find and modify those components when you prompt it later. If a developer refactors three components into one clever generic component, you have saved forty lines of code and lost the ability to ask Lovable to change just one of them. The next prompt you write will either do nothing useful or will undo the refactor.

The do-not-touch list is not about the developer being less skilled than you. It is about the fact that your codebase has two authors, AI and human, and both of them need to be able to read and write it without stepping on each other.

Scope Boundaries and How to Price the Engagement

Rescue engagements should be priced fixed-fee, almost without exception. Hourly work creates an incentive for the developer to explore the codebase, to notice things that bother them, to propose cleanup. Fixed-fee creates an incentive to ship the scoped deliverable and move on. The founder gets predictable cost, the developer gets a clear finish line, and scope-creep conversations become explicit re-quotes instead of silent invoice inflation.

The right fee range for a defined Lovable bug fix or feature completion sits between eight hundred and three thousand dollars, depending on complexity and depth of access needed. Below that and the developer is either inexperienced with the stack or is planning to get in and out fast enough that quality will suffer. Above that and you are probably buying a rewrite in disguise, regardless of what the quote calls it.

For founders who need more than a one-time fix, a monthly retainer is the honest structure. The retainer model says, out loud, that the product is going to keep changing, that most of those changes will be shipped by you with AI, and that a human developer is on standby for the specific things AI cannot do safely. Payments integrations, webhook signature verification, rate limiting, RLS policy audits, migrating data between environments, debugging production incidents. The retainer pays for that availability, caps the monthly spend, and removes the pressure on either side to over-scope a given piece of work. This is the model WitsCode runs, and it exists because almost every founder who comes to us for a one-time rescue comes back within ninety days for another one.

A one-shot bug fix gets a fixed fee with a hard deliverable. A stream of changes over weeks or months gets a retainer with a scoped monthly ceiling. Mixing the two produces hourly-feeling work inside a fixed-fee envelope, which is the structure that creates resentment on both sides.

How to Keep Shipping After the Developer Leaves

The last section of your brief, the one most founders forget, is about what happens after the engagement ends. A rescue is only successful if you can still iterate on your own product the day after the developer pushes their final commit. That means the developer's work needs to be intelligible to Lovable and to you.

Before the engagement closes, there are four things to confirm. The developer's changes should be in files Lovable can still find and modify. The design tokens should still be in src/index.css. The Supabase schema should be documented in a single place you can paste into a Lovable prompt when you need it to remember the shape of the database. The README or a short handoff note should explain, in a paragraph a non-developer can read, what was changed and why. That paragraph is what you paste into Lovable next week to bring it up to speed before you prompt your next feature.

If the developer pushes back on any of these, that is useful information. It usually means they built something in a pattern they did not write down, which means the next time you want to change that area of the code, you will have to pay them again to do it. A good last-mile developer knows their job is to work themselves out of your next sprint, not into it.

WitsCode is a retainer-first service for vibe coders because the rescue-and-leave model tends to produce exactly this outcome. A one-off developer ships a fix and disappears, and the founder discovers two weeks later that some of the fix has been silently undone by an AI prompt, or that the bug is back in a slightly different form and nobody understands why. The retainer model puts the same developer on the problem every time, preserves institutional memory, and defends the AI iteration workflow between engagements. If that is the structure you need rather than another one-shot rescue, that is the conversation to have with us next.

Your Lovable app is not a prototype waiting for a rewrite. It is a production system with two authors, and the brief you write before hiring is what keeps both of them able to work. Get the brief right, have the don't-rebuild conversation, fence off the do-not-touch list, price it fixed-fee, and walk away from anyone who cannot hold those boundaries.