skills

Teach a complex topic as one complete, self-paced written lesson — chaptered sections the learner reads top to bottom, a deep-dive that slows down on the single hardest concept and breaks it into steps with worked examples, diagrams only where they actually clarify, and real citations for going deeper. Works from an explicit topic ("teach me how Raft consensus works") or from one or more links/papers/docs the user wants to be brought up to speed on — it fetches them, falling back to a browser when a page is paywalled, JavaScript-rendered, or only partially retrievable. Use this whenever the user wants to *understand* something rather than just get an answer: "teach me X", "explain this <link>", "help me understand <topic>", "I want to learn <thing>", "break this down for me", "ELI5 but properly / but deep", or when they drop a URL and ask to be walked through it like a class. Distinct from a quick factual lookup or a terse summary — reach for this when the goal is durable understanding, not a TL;DR.

Render a Mermaid diagram as a beautiful, optionally animated SVG (and PNG) in a calm editorial style, instead of stock Mermaid output. Supports flowchart, stateDiagram, and sequenceDiagram. Use whenever the user wants to render, draw, beautify, restyle, or "make nice" a Mermaid / flowchart / sequence / state diagram, add animated data-flow to a diagram, or turn a described process or architecture into a polished diagram for a doc, README, or slide. All styling — colors, fonts, shapes, borders, animation — is configurable in one theme file.

Produce beautiful, structured terminal output for a CLI or analysis tool — ANSI colors, aligned data tables, inline bar charts, diverging/centered bars, tagged progress logs, sparklines, and section headers. Use this skill whenever you are building a command-line tool, analysis script, report generator, data dashboard, or status/progress display that prints to a terminal, OR whenever the user wants output to look "polished", "colored", "styled", "like a dashboard", or shows a screenshot of a pretty terminal and asks how to make one. Applies even when the user just says "print the results nicely" or "make a little CLI for this" without naming colors or charts explicitly.