Build a presentation in the design system's language: draft or resume a deck's OUTLINE.md (title, target theme, slide list where every slide instantiates a deck-kit master, per-slide content), confirm it with the human, then fan slide-smith workers out one-per-slide, assemble the reveal.js deck deterministically, gate with deck-check, and close with a deck-critic rendering pass. Trigger whenever the user wants an actual slide deck/presentation built from the design system — "build a deck about the Q3 results", "make a presentation from these notes in our design language", "turn this doc into slides", or /deck-build. Requires a built deck kit (deck-kit/DECKKIT.md + sample …