Seven things you have to be able to do.
Not seven things to watch. This page holds the only record that matters — what you have actually been measured on, and how long ago. Everything here is free, needs no account, and nothing on it moves because you read something.
What each one costs you
Being bad at any of these has a price, and the price is on the card. Where something measures you, the last measurement is shown with its date. Where nothing measures you yet, it says so rather than drawing a bar at zero.
Why there is no percentage on this page. One number saying this much mastered would be easier to look at and it would be invented. What is real is a score, the day it was set, and how long it has been — so that is what is here. Two facts, both measured, never averaged into one that means less than either. The build refuses to ship this page if a percent sign appears anywhere in it, including in a sentence like this one arguing against it, because the exception is how the rule dies.
Why some cards say nothing trains this. Because nothing does, yet. Naming the gap is cheaper than filling it badly, and a curriculum that quietly omits the part nobody built is how a course teaches you the easy half.
Where this is kept. In this browser, on this device, same as the games themselves. Nothing is uploaded, no account is required, and clearing your browser data clears it — which is the honest trade for not asking who you are.