The AI writes it.
You're accountable for it.

Be the second pair of eyes your AI doesn't have. Five minutes a day of real reps: catch the bug, review the diff, spot the hallucination — the skill nobody is teaching.

No course library. No 4-hour videos. No certificate nobody reads.

Try one right now

This is the whole product: one card, twenty seconds, a real mistake AI makes daily.

SPOT THE BUG

Your copilot wrote this yesterday. One line breaks it — tap it.

1function dedupe(items) {
2  const seen = new Set();
3  for (let i = 0; i <= items.length; i++) {
4    if (!seen.has(items[i].id))
5      seen.add(items[i].id);
6  }
7  return [...seen];
8}

tap a line ↑

Why courses stopped working

COURSE PLATFORMS

Four hours of video, watched at 2×, forgotten by Friday
Recorded in 2023, framework shipped v5 last month
Starts at lesson one whether or not you need it
Teaches you to write code AI already writes
Completion certificate proves attendance, not skill

SECOND PAIR

Five minutes, thumb on glass, one concept per card
Regenerated when the framework changes — current this week
Placement skips what you already know
Teaches you to catch what AI gets wrong
A skill graph built from what you actually got right

What you'll practice

SPOT THE BUG

Off-by-ones, race conditions, silent nulls — the mistakes that read as clean code.

REAL OR HALLUCINATED

Does that API exist? Train the reflex so you stop re-Googling every suggestion.

REVIEW THE DIFF

Approve or request changes on AI-opened PRs, with the reasoning shown after.

Learning a new stack too? Pick a goal — Express, advanced C#, React Server Components — and get it as a taught, tested card track instead of a video library.

Managing juniors shipping AI code?

Your team generates more code than it can review. We're running paid pilots with a handful of engineering teams: daily reps for the team, plus a skill graph showing who can actually evaluate AI output and where the gaps are.

One question before you go

What would make this worth opening every day?