# Demme Learning > Design system delivered to Demme Learning between November 2023 and August 2024. The live build paused before launch; the system itself is the deliverable. Reactivated 2026-04-30 as the productization pilot for /system/[slug]. This is the AI-discovery file for the Demme Learning brand book. Brand book v0.9.0-beta, updated 2024-08-31. Voice: Warm, Direct, Trusted. ## Canonical spec - [Brand book overview](https://localhost:3000/brand/demme): human-readable surface. - [spec.md](https://localhost:3000/brand/demme/spec.md): drop-in system prompt context. - [spec.json](https://localhost:3000/brand/demme/spec.json): structured machine-readable spec. - [tokens.css](https://localhost:3000/brand/demme/tokens.css): design tokens as CSS variables. - [tokens.figma.json](https://localhost:3000/brand/demme/tokens.figma.json): Figma Variables payload. ## Sub-pages - [/voice](https://localhost:3000/brand/demme/voice): voice rules, do/dont, sample copy by surface. - [/personas](https://localhost:3000/brand/demme/personas): primary audience personas. - [/applied](https://localhost:3000/brand/demme/applied): where this brand is rendered today. - [/decisions](https://localhost:3000/brand/demme/decisions): audit trail of brand decisions. - [/changelog](https://localhost:3000/brand/demme/changelog): spec releases and voice adoptions. - [/demo](https://localhost:3000/brand/demme/demo): run the brand against Claude in-browser. - [/api](https://localhost:3000/brand/demme/api): developer endpoints. ## Callable prompts - `newsletter-intro` via POST https://localhost:3000/api/brand-spec/demme/demo - `about-blurb` via POST https://localhost:3000/api/brand-spec/demme/demo - `project-announce` via POST https://localhost:3000/api/brand-spec/demme/demo - `school-pitch` via POST https://localhost:3000/api/brand-spec/demme/demo