For apps built with Cursor · Lovable · Bolt · Replit · v0 · Claude Code
It worked yesterday. Now it doesn't. Let's fix it.
Paste your error or a repo link. Agents work out what's wrong, a human reviews every fix, and you get a plain-English explanation of what broke and why.
Quick Diagnosis starts at $29. No fix found, no charge.
$ npm run build Error: supabaseUrl is required. at new SupabaseClient (...) ▸ Diagnosis Your app reads SUPABASE_URL when it runs, but the host never received that variable. It works on your laptop because your local .env file has it. ▸ Fix 1. Add the variable in your hosting dashboard 2. Redeploy ✓ Human-reviewed · no code changes needed
Illustrative example, not a real customer case.
How it works
Three steps, no calls, no jargon. Agents do the digging, a human approves the answer, and you stay in control of your code and your deploys.
Paste your error or repo link
Share the error text, a screenshot, and what you expected to happen. For code-level fixes, add a public repo or a read-only invite.
Agents diagnose it
We reproduce the problem in an isolated, disposable sandbox, find the root cause, and write the smallest safe fix.
A human reviews it
A person checks every fix for leaked secrets and unsafe changes before you see it. You get a plain-English summary plus copy-paste steps or a patch.
Flat prices
You know the cost before we start. Cheaper than an agency audit, and faster than learning it all yourself.
Quick Diagnosis
- Paste an error or screenshot
- Plain-English explanation of the cause
- The likely fix
- Copy-paste steps or a prompt for your AI tool
Fix It
- Read-only repo access
- Full diagnosis of one issue
- Tested patch (a diff or pull request)
- Human-reviewed summary
- One follow-up round included
Launch Check
- Security and stability scan
- Checks exposed keys, auth and RLS, payments, and error handling
- Ranked top-10 list of risks
- Fixes for the top 3
Read The Build Brief? Subscribers get 20% off their first fix.
Your code and keys stay yours
Fixing your app should never put it at risk.
Read-only repo access
We only ask for read-only access or a public repo. We never push to your main branch or deploy for you. You review every change and ship it yourself.
Isolated sandboxes
Your code runs in throwaway sandboxes that can't reach your live systems. They're destroyed when the job is done.
Secrets scrubbed, repos deleted
We automatically scrub any secrets we find in code before review, and delete our copies of your repo after 14 days.
A human checks every fix
No fix reaches you until a reviewer has checked it for leaked secrets, unsafe changes, and licensing problems.
Questions, answered
What kinds of apps can you fix?
Web apps and backends built with AI tools such as Cursor, Lovable, Bolt, Replit, v0, and Claude Code. That usually means React or Next.js, Node, Python, Supabase, Firebase, and similar stacks. If yours is something else, send it anyway. If we can't help, we'll say so and you won't be charged for a Quick Diagnosis.
What does "no fix found, no charge" mean?
Quick Diagnosis is billed only after we deliver. If we can't find the cause and a likely fix, you pay nothing.
What if the Fix It patch doesn't work?
Fix It includes one follow-up round. If the patch still doesn't solve the issue you described, you get a full refund.
Is this done by AI or by people?
Both. Agents reproduce the problem and draft the fix, and a human reviews every fix before it reaches you. If we couldn't fix something, we'll tell you plainly.
Do you need access to my live app or database?
No. We work from the error details and a read-only copy of your code in an isolated sandbox. We never connect to your production systems, and we never ask for passwords or keys.
Who deploys the fix?
You do. You get a diff or pull request plus a plain-English summary, so you can review it and ship it yourself. Our work is advisory, and you stay in control of your app.
Is there anything you won't take on?
We don't take regulated or high-risk work, such as medical, financial, or payments-critical systems, without extra human review, and we may decline it. We'll let you know up front.
Paste your error. Get a plain-English answer.
Start with a $29 Quick Diagnosis. No fix found, no charge. Please don't include passwords or API keys in the form.
Want the five-minute AI brief for builders? Read The Build Brief.