Use when creating theme systems, color variables, or design system tokens. Covers primitives, semantic, and component tokens.
Install
npx skillscat add fusengine/agents/theming-tokens Install via the SkillsCat registry.
SKILL.md
Theming Tokens
Agent Workflow (MANDATORY)
Before implementation, use TeamCreate to spawn 3 agents:
- fuse-ai-pilot:explore-codebase - Find existing tokens
- fuse-ai-pilot:research-expert - Tailwind v4 @theme patterns
After: Run fuse-ai-pilot:sniper for validation.
Overview
| Feature | Description |
|---|---|
| Primitives | Raw values (blue-500, radius-lg) |
| Semantic | Purpose-based (primary, surface) |
| Component | Specific (button-bg, card-border) |
Token Hierarchy
┌─────────────────────────────────────────────────┐
│ COMPONENT TOKENS (specific) │
│ --button-bg, --card-border, --input-focus │
├─────────────────────────────────────────────────┤
│ SEMANTIC TOKENS (purpose) │
│ --color-primary, --color-surface, --color-text │
├─────────────────────────────────────────────────┤
│ PRIMITIVE TOKENS (raw values) │
│ --blue-500, --gray-100, --radius-lg │
└─────────────────────────────────────────────────┘Quick Reference
Primitive Tokens
:root {
/* Colors - OKLCH for P3 gamut */
--blue-500: oklch(55% 0.20 260);
--green-500: oklch(65% 0.20 145);
/* Radius */
--radius-lg: 0.75rem;
--radius-2xl: 1.5rem;
/* Spacing (4px grid) */
--space-4: 1rem;
--space-6: 1.5rem;
}Semantic Tokens
:root {
--color-background: var(--gray-50);
--color-foreground: var(--gray-900);
--color-primary: var(--blue-500);
--color-surface: var(--white);
/* Glass */
--glass-bg: rgba(255, 255, 255, 0.8);
--glass-border: rgba(255, 255, 255, 0.2);
}
.dark {
--color-background: var(--gray-950);
--color-foreground: var(--gray-50);
--glass-bg: rgba(0, 0, 0, 0.4);
}Component Tokens
:root {
--button-height: 2.5rem;
--button-radius: var(--radius-lg);
--card-radius: var(--radius-2xl);
--card-padding: var(--space-6);
}Tailwind v4 @theme
@import "tailwindcss";
@theme {
--color-primary: oklch(55% 0.20 260);
--font-display: 'Clash Display', sans-serif;
}Validation Checklist
[ ] Primitives defined (colors, spacing, radius)
[ ] Semantics mapped to primitives
[ ] Dark mode overrides present
[ ] @theme configured for Tailwind v4
[ ] No hard-coded hex in componentsBest Practices
DO
- Use three-tier hierarchy
- Map semantics to primitives
- Define dark mode overrides
- Use OKLCH for colors
DON'T
- Hard-code hex values
- Skip semantic layer
- Forget dark mode
- Mix color spaces