design-tokens

This skill generates the foundational design tokens for a project. Run this after the design brief and before building any components. Every component built after this references these tokens instead of hardcoding values. Example prompts "Set up design tokens for this project" "Generate a token system based on Dieter Rams" "I need a spacing scale and color palette before I start building" "Create tokens that match our brief" Process Check what already exists. Before generating anything, scan the codebase for: CSS variable definitions ( :root , [data-theme] , custom property files) Tailwind config ( tailwind.config.js , tailwind.config.ts ) and any theme extensions Theme provider files (Material UI createTheme , Chakra extendTheme , shadcn globals.css ) Design token JSON files (Style Dictionary format, Figma token exports) Any tokens.css , variables.css , theme.css , or similarly named files package.json for UI framework dependencies (tailwindcss, @mui/material, @chakra-ui/react, etc.) If tokens already exist, extend them rather than replacing. Identify gaps (missing dark mode, incomplete spacing scale, no motion tokens) and fill those. Read the brief. Look for a design brief at .design//DESIGN_BRIEF.md . If multiple subfolders exist, use the most recently modified one, or ask the user which feature they are working on. If a philosophy is named, use the parameters from /frontend-design to derive token values. If no brief exists, ask the user what direction they want. Generate tokens in the format that matches the project's tech stack: Tailwind project → extend tailwind.config.js and write to globals.css CSS/HTML project → write to a tokens.css file CSS-in-JS project → write to a theme.ts or theme.js file If unclear, default to CSS custom properties (most portable) Always generate both light and dark mode palettes. Use [data-theme="dark"] or prefers-color-scheme media query. Both palettes should feel intentional for the chosen philosophy, not just inverted values. Token Categories Color / Semantic color tokens, not raw values / --color-bg-primary : / Main background / --color-bg-secondary : / Secondary/card background / --color-bg-tertiary : / Subtle background (inputs, wells) / --color-bg-inverse : / Inverted background / --color-text-primary : / Main text / --color-text-secondary : / Subdued text / --color-text-tertiary : / Placeholder, disabled text / --color-text-inverse : / Text on inverse backgrounds / --color-text-link : / Link color / --color-border-primary : / Default borders / --color-border-secondary : / Subtle borders / --color-border-focus : / Focus ring color / --color-accent-primary : / Primary action color / --color-accent-primary-hover : --color-accent-primary-active : --color-accent-secondary : / Secondary action color / --color-status-success : --color-status-warning : --color-status-error : --color-status-info : --color-surface-overlay : / Modal/dropdown backdrop / Spacing Generate a consistent scale. The base unit should match the philosophy: Tight philosophies (Brutalist, Swiss): 4px base Balanced philosophies (Rams, Scandinavian): 4px or 8px base Spacious philosophies (Japanese Minimalism, Editorial): 8px base with larger multipliers --space-0 : 0 ; --space-1 : / base * 0.25 / --space-2 : / base * 0.5 / --space-3 : / base * 0.75 / --space-4 : / base * 1 / --space-5 : / base * 1.5 / --space-6 : / base * 2 / --space-7 : / base * 3 / --space-8 : / base * 4 / --space-9 : / base * 6 / --space-10 : / base * 8 / --space-11 : / base * 12 / --space-12 : / base * 16 / Typography --font-family-display : / Headline/display font / --font-family-body : / Body text font / --font-family-mono : / Code/monospace font / --font-size-xs : --font-size-sm : --font-size-base : --font-size-md : --font-size-lg : --font-size-xl : --font-size-2xl : --font-size-3xl : --font-size-4xl : / Hero/display size / --font-weight-normal : --font-weight-medium : --font-weight-semibold : --font-weight-bold : --line-height-tight : / Headings: 1.1-1.3 / --line-height-normal : / Body: 1.4-1.6 / --line-height-relaxed : / Spacious body: 1.6-1.8 / --letter-spacing-tight : / Display type / --letter-spacing-normal : --letter-spacing-wide : / All-caps, labels / Layout --max-width-content : / Max reading width (65-75ch equivalent) / --max-width-wide : / Wide content area / --max-width-page : / Full page max width / --border-radius-sm : --border-radius-md : --border-radius-lg : --border-radius-full : / Pill/circle / --shadow-sm : --shadow-md : --shadow-lg : --shadow-focus : / Focus ring shadow / Motion --duration-instant : 50 ms ; --duration-fast : 150 ms ; --duration-normal : 250 ms ; --duration-slow : 400 ms ; --duration-slower : 600 ms ; --easing-default : cubic-bezier ( 0.4 , 0 , 0.2 , 1 ) ; --easing-in : cubic-bezier ( 0.4 , 0 , 1 , 1 ) ; --easing-out : cubic-bezier ( 0 , 0 , 0.2 , 1 ) ; --easing-bounce : cubic-bezier ( 0.34 , 1.56 , 0.64 , 1 ) ; Responsive Breakpoints --breakpoint-sm : 375 px ; / Mobile / --breakpoint-md : 768 px ; / Tablet / --breakpoint-lg : 1024 px ; / Small desktop / --breakpoint-xl : 1280 px ; / Desktop / --breakpoint-2xl : 1536 px ; / Wide desktop / Dark Mode Always generate dark mode tokens alongside light mode. Rules: Do not simply invert colors. Dark backgrounds should be warm or cool depending on the philosophy. Reduce contrast slightly in dark mode (pure white text on pure black is harsh). Shadows should use darker, more transparent values in dark mode, not the same shadows as light. Accent colors may need lightness adjustments to maintain contrast ratios. Include a prefers-color-scheme media query AND a [data-theme="dark"] attribute selector so the user can support both system preference and manual toggle. :root { / Light mode tokens / } [ data-theme = "dark" ] { / Dark mode overrides / } @media ( prefers-color-scheme : dark ) { :root :not ( [ data-theme = "light" ] ) { / System-preference dark mode, unless user explicitly chose light */ } } Output Save the tokens file in the appropriate location for the project's tech stack. State which philosophy the tokens are derived from and note any deviations or choices made.