Debunkcode
AI writes the code in two minutes. You learn to take it apart in five.
Vibe coding ships fast. Someone still has to review it. Debunkcode is deliberate practice for that job: real AI-written code that looks right, passes its visible tests and hides one defect. Find it, fix it, write the test that catches it. Scored automatically, explained afterwards.
The verification gap is real
95%
of developers spend effort reviewing, testing and fixing AI output.
Sonar, State of Code 202648%
actually verify it, although 96% say they do not fully trust it. That is the verification gap.
Sonar, State of Code 20261.7×
more issues in AI-generated pull requests than in human ones, and 2.7× more security findings.
CodeRabbit, State of AI vs human code generation
Three modes, one defect
1
Find
Read the code the way a reviewer does. Mark the lines where the defect lives and name its category. Scored on precision.
2
Fix
Repair the code in the editor until the hidden tests pass. The visible tests already pass: they were written to confirm, not to challenge.
3
Test
Write the test that fails on the AI's version and passes on a correct one. The skill that stops the next defect before review.
Start with three free exercises
No account, no setup. The code runs in your browser.
Pricing
Reading is free. Verified practice is what you pay for.
Free
$0
Free exercises, the bug of the week, basic progress.
Pro
$19 / month
or $149 / year. Every exercise, all three modes, learning paths, certificates, new exercises weekly.
Early bird
$99 once
Pro for life. First 200 seats, then it is gone.
Team
$12 / seat / month
Everything in Pro plus a team dashboard, assigned paths and reports. Minimum 5 seats, billed yearly.
Paid plans open soon. Join the waitlist below to hear first, including about the early-bird seats.
Get notified when Pro opens
The early-bird seats go to the waitlist first.
Questions
Is this about writing code with AI?
No. It is about what happens after: reading the code an assistant wrote, finding the defect it hid, fixing it and writing the test that would have caught it. The skill that review and senior engineers are paid for.
Do I need an account?
Not for the free exercises or the bug of the week. An account saves your progress and scores; Pro unlocks the full catalogue and all three modes on every exercise.
Which languages?
TypeScript today. Python is next; the format is language-agnostic, so more follow once the catalogue is deep.
Where does my code run?
In your browser, in a Web Worker. Nothing you type leaves your machine, and nothing waits on a server.
What is the early-bird deal?
The first 200 people pay $99 once and keep Pro for life. It funds the launch; after 200 seats it disappears.