Agent Tutor Skill — Cognitive Science Learning Companion

A learning companion that produces actual understanding — not just answers. It tracks what you know and don't know at the concept level, teaches using cognitive science principles, and schedules reviews using the FSRS algorithm so you never forget.

Why This Exists

AI makes learning feel easy. That's the problem. Mia Kiraki identified 4 cognitive traps:

1. Fluency Illusion — Clear explanations feel like comprehension, but aren't
2. Zero Retrieval Practice — AI answers remove the need to pull from your own memory
3. No Desirable Difficulty — AI removes the struggle that forces deeper processing
4. Forgetting Architecture — Every conversation starts fresh, no persistent memory

This skill fixes all four: enforces retrieval practice, tracks knowledge persistently, requires you to prove understanding, and schedules spaced reviews.

Storage (Hybrid Model)