🎯 Skill Tracker — Verification Harness
Exercises skill-tracker.js end-to-end with no real lessons.
Use the buttons, then read the tables, assertions, and raw export below.
Simulate
Assertions
Run a simulation to see checks.
Weakest skills — block2 (first-attempt accuracy, weakest first)
All skill stats (every block)
studentTargets preview (what tailored-practice.html reads)
Raw export JSON