A path, a lesson a day
Five-minute lessons that build on each other. Spot the invented figure, fix the line that caused it, match the failure to its fix. Mistakes come back until you get them right — and again right before you'd forget.
Short, playable lessons that make you measurably better at directing AI at work — then put it to work on the jobs you repeat every week.
Try one · Lesson 1
How it works
Five-minute lessons that build on each other. Spot the invented figure, fix the line that caused it, match the failure to its fix. Mistakes come back until you get them right — and again right before you'd forget.
An adaptive 20-minute test, in the style of the Duolingo English Test: one score from 10 to 160 and four subscores. Retake it every two weeks and watch the number move.
Every section ends on your own work: the status update, research synthesis or report you do every week, turned into a procedure that runs — timed, checked, and counted in hours saved.
Streaks that count practice, not visits
XP only for right answers and real work
Weekly leagues, and leagues for your team
Review aimed at your weakest skills
What you'll learn
Section 1
Section 2
Section 3
Section 4
If you use AI at work
You retype the same instructions into ChatGPT every Monday, slightly differently each time.
One written instruction you reuse, with the sources and the quality bar attached to it.
You skim the output, it reads well, and you send it. You are not really sure what it got wrong.
A check you wrote runs against every draft, and flags the claims nothing in your material supports.
Somebody asks how you made it and the honest answer is: I fiddled with it until it looked right.
A procedure on a page. You can hand it over, improve it, or run it in ten minutes.
Your first real job, about half an hour
A real deliverable — the status update, the synthesis, the report — with every claim marked against the material it came from, so you know what is safe to send before you send it.
Five lines you keep: what to attach, what to ask, what done means, what to check, and what never goes in. Set a cadence and it is waiting for you next week, on next week’s material.
Your score before and after the fix, then every live run timed against how long the job takes you by hand — with a running total of time saved and problems caught before they went out.
Start with whichever costs you the most time
Real work, step by step
On real work there’s nothing to study first. You attempt the job, and whatever goes wrong picks the lesson you get.
Do the job with no help at all.
It finds your real edges in five minutes. Guessing at them takes weeks — and the gap it finds is what picks the one lesson you get next.
Your own sentences, marked where nothing supports them.
A number tells you how you did. A mark under your own words tells you what to change — and each one links to the single lesson that closes it.
The same job again, with hints, a coach and a worked answer.
This is where the document actually gets made, and where you find out whether the fix took. Revise and resubmit as often as you like.
Save the procedure and say when it comes round.
This is the part you still have next Monday. Everything above it is proof the procedure works; this is what makes it come back.
What “see where it broke” means
A number tells you how you did. A rule under your own sentence tells you what to change — and which claim you should not have sent.
The team resolved most blockers this week1 and the migration is nearly done2.
Checkout latency is down to 310ms at p95, from 890ms3.
What a procedure is made of
Prompt craft is the part that depreciates — every model generation absorbs more of it. The other four don’t get easier, and they’re where the work actually goes wrong.
What gets attached every time — and what deliberately doesn't?
Without this you paste whatever is nearest and the model answers from nothing.
The prompt you send, every time.
A vague ask gets a fluent answer in the wrong shape, and you redo it by hand.
What must be true of the output before you'd accept it?
Written after you look, this is just a description of what you got.
What do you verify before any of this leaves the building?
Skip it and the invented number goes out with your name on it.
Who is accountable, and what never goes in?
Nobody owns it, so nobody catches it — and confidential text leaks by habit.
Beyond the daily path
When part of a real run goes wrong, the longer lesson that fixes that part is handed to you — about eight minutes, then straight back to the work.
8 screens · 14 min
Three contradictory user interviews and forty minutes before a roadmap review. Produce a memo where every claim traces back to a quote.
6 screens · 12 min
An AI-drafted investor update with invented numbers in it. Find them, prove they are wrong, and rewrite it before it reaches the board.
5 screens · 10 min
Scattered team updates into a status email your VP will actually read, ending with the prompt you reuse every Monday after.
Looking at this for a team? Team groups are free: a shared league, and a dashboard of who practised and what their real work saved. See how teams work.
FAQ
Start the path, find your level with a five-minute placement, and see your score move.
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