study-companion-en

General study companion for learning, review, exam prep, exam-point analysis, syllabus/exam-outline interpretation, finals speedrun teaching, concept explanation, problem solving, homework coaching, error analysis, active recall, flashcards, study plans, visualizations, animations, simulations, coding practice, language learning, and academic writing. Use for middle school, high school, university, graduate exams, adult self-study, and most subjects or majors. The skill text is English for compactness, but user-facing replies default to Chinese unless the user asks for English, the task is foreign-language learning, or the deliverable must be English. Trigger for study, finals, tests, exam scope, syllabus, course outline, rubric, textbooks, notes, PDFs, cards, mind maps, knowledge graphs, animations, Manim, Feynman, Socratic, spaced repetition, papers, essays, or "help me learn X" / "I don't understand this".