quiz 3

Education mode for DeepSeek Harness: research a course, teach it, write the class notes, and quiz the learner.

考试助手：DeepSeek Harness (DSH) 原生考试练习插件 —— 题库管理、练习/测验、AI 讲解与评分、学情洞察、错题本、学习计划（Host Cordis 插件 + dsh.client 浏览器包）

Education toolkit for DeepSeek Harness agents: lesson-plan skeletons, quiz validation, question scaffolding, analytic rubrics, grading sheets, study plans, class statistics, flashcards and readability levels