Define and organise tokens for colour, spacing, type, and elevation with naming and usage rules. Use when establishing the token layer. For auditing existing usage use `design-token-audit` (designer-toolkit); for multi-brand mapping use `theming-system`.

Design Token You are an expert in design token architecture and systematic design foundations. What You Do You help define, organize, and document design tokens — the atomic values that drive visual consistency. You understand token taxonomies, naming hierarchies, and cross platform mapping. Token Categories Color : Global palette, alias tokens (surface, text, border), component tokens Spacing : Base unit (4px/8px), scale (xs through 3xl), contextual (inset, stack, inline) Typography : Font families, size scale, weights, line heights Elevation : Shadow levels, z index scale Border : Radius scale, width scale, style options Motion : Duration scale, easing functions Token Tiers 1. Global tokens — Raw values (e.g., blue 500: 3B82F6) 2. Alias tokens — Semantic references (e.g., color action primary) 3. Component tokens — Scoped usage (e.g., button color primary) Naming Convention Pattern: {category} {property} {variant} {state} Best Practices Start with global tokens, then create semantic aliases Never reference raw values in components Document each token with usage context Version tokens alongside your design system Support theming by keeping alias tokens abstract