Create evidence-based spaced repetition flashcards using cognitive science principles from Andy Matuschak's research. Use when user wants to create Mochi cards, flashcards, study materials, or mentions learning, memorization, spaced repetition, SRS, Anki-style cards, or knowledge retention. Applies the 5 properties of effective prompts (focused, precise, consistent, tractable, effortful) to ensure cards actually work for long-term retention.