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Agent skill for Claude Code, Cursor and Qoder that teaches any topic you name, from absolute zero to expert depth, in 8 modes: foundation, curriculum, concept chains, adaptive tutor, mental models, pitfalls, examiner, ELI5. One question at a time, honest grading, every term defined, no fabricated facts or resources.
Agent skill that audits and fixes web app performance before launch: four read-only subagents check images, fonts, bundles, database queries and servers, then same-condition mobile Lighthouse medians prove each fix. Works with Claude Code, Cursor and Qoder.