A design system for documents: evidence-led analytical reports, diagrams, charts, decks, and eighteen prose types — plus guided brand theming — all sharing one semantic token contract. Writing lands as Markdown by default; designed HTML needs no JavaScript to read.
Generate dense, visual-first HTML explainers — dark-themed, diagram-driven reference documents where every section is an inline-SVG visualization and prose is captions only.
Turn a video or podcast into a study session: transcript, prepared concepts, and charts the agent builds and verifies. Pause anywhere and ask; the agent knows the second you are on. Ships the observer skill and its MCP server.