# Design for Meaning > A shared vocabulary for working with AI. Design for Meaning helps humans and agents align on the terms, references, and definitions a project depends on. This is the AI-discovery file for the Design for Meaning brand book. Brand book v0.1.0, updated 2026-06-09. ## Canonical spec - [Brand book overview](https://localhost:3000/brand/design-for-meaning): human-readable surface. - [spec.md](https://localhost:3000/brand/design-for-meaning/spec.md): drop-in system prompt context. - [spec.json](https://localhost:3000/brand/design-for-meaning/spec.json): structured machine-readable spec. - [tokens.css](https://localhost:3000/brand/design-for-meaning/tokens.css): design tokens as CSS variables. - [tokens.figma.json](https://localhost:3000/brand/design-for-meaning/tokens.figma.json): Figma Variables payload. ## Sub-pages - [/voice](https://localhost:3000/brand/design-for-meaning/voice): voice rules, do/dont, sample copy by surface. - [/personas](https://localhost:3000/brand/design-for-meaning/personas): primary audience personas. - [/applied](https://localhost:3000/brand/design-for-meaning/applied): where this brand is rendered today. - [/decisions](https://localhost:3000/brand/design-for-meaning/decisions): audit trail of brand decisions. - [/changelog](https://localhost:3000/brand/design-for-meaning/changelog): spec releases and voice adoptions. - [/demo](https://localhost:3000/brand/design-for-meaning/demo): run the brand against Claude in-browser. - [/api](https://localhost:3000/brand/design-for-meaning/api): developer endpoints.