AI writes the code,
you are accountable for it.

The scarce skill is no longer writing code from scratch; it's verifying code you didn't write. ByteCop trains exactly that, by putting you inside real production failures. You find the bug and fix it, graded by whether your fix actually runs.

1Concept

A concrete analogy, no jargon. Ends with one rule and a diagram that makes the failure mode stick.

2Walkthrough

A live simulator. You have to reproduce the broken state yourself before you can proceed. No skipping.

3Problem

A production incident brief. Find the line, write the fix, run it against staged tests. Each stage only reveals when you have it right.