← SkillSafe
Explain It Back

On 21 October 2026 an Ask HN thread - how do you deal with shipping AI-written code you don't understand? - had passed 700 comments, and a Show HN on the same front pages quizzed developers on their AI's code before they ship it.

Could you explain the code your AI just wrote?

Paste the diff. The page marks the lines worth a second look, then sets you a short exam on the change - what does this return, why is that line there, what breaks if you remove it. Answer in your own words. Your answers are graded and the paper comes back stamped.

Try one:

1 The change

Or drop a .diff, .patch or source file -
Questions

    2 The listing

    3 Set the quiz

    The examiner reads only the change you pasted - it never invents a caller or a library behaviour, and every answer key must be provable from the listing. Fewer than three changed rows of code comes back asking for more.

    Pricing as soon as the session is ready...

    5 Kept exams