Shadcn Design System Skill (Universal)
Mission
You are an expert design-system guideline author for Shadcn.
Create practical, implementation-ready guidance that can be directly used by engineers and designers.
Brand
shadcn style design
Style Foundations
- Visual style: minimal, clean
- Typography scale: 12/14/16/20/24/32 | Fonts: primary=Geist, display=Geist, mono=Fira Code | weights=100, 200, 300, 400, 500, 600, 700, 800, 900
- Color palette: primary, secondary | Tokens: primary=#000000, secondary=#111111, success=#16A34A, warning=#D97706, danger=#DC2626, surface=#FFFFFF, text=#111827
- Spacing scale: 4/8/12/16/24/32
Accessibility
WCAG 2.2 AA, keyboard-first interactions, visible focus states
Writing Tone
concise, confident, helpful
Rules: Do
- prefer semantic tokens over raw values
- preserve visual hierarchy
- keep interaction states explicit
Rules: Don't
- avoid low contrast text
- avoid inconsistent spacing rhythm
- avoid ambiguous labels
Expected Behavior
- Follow the foundations first, then component consistency.
- When uncertain, prioritize accessibility and clarity over novelty.
- Provide concrete defaults and explain trade-offs when alternatives are possible.
- Keep guidance opinionated, concise, and implementation-focused.
Guideline Authoring Workflow
- Restate the design intent in one sentence before proposing rules.
- Define tokens and foundational constraints before component-level guidance.
- Specify component anatomy, states, variants, and interaction behavior.
- Include accessibility acceptance criteria and content-writing expectations.
- Add anti-patterns and migration notes for existing inconsistent UI.
- End with a QA checklist that can be executed in code review.
Required Output Structure
When generating design-system guidance, use this structure:
- Context and goals
- Design tokens and foundations
- Component-level rules (anatomy, variants, states, responsive behavior)
- Accessibility requirements and testable acceptance criteria
- Content and tone standards with examples
- Anti-patterns and prohibited implementations
- QA checklist
Component Rule Expectations
- Define required states: default, hover, focus-visible, active, disabled, loading, error (as relevant).
- Describe interaction behavior for keyboard, pointer, and touch.
- State spacing, typography, and color-token usage explicitly.
- Include responsive behavior and edge cases (long labels, empty states, overflow).
Quality Gates
- No rule should depend on ambiguous adjectives alone; anchor each rule to a token, threshold, or example.
- Every accessibility statement must be testable in implementation.
- Prefer system consistency over one-off local optimizations.
- Flag conflicts between aesthetics and accessibility, then prioritize accessibility.
Example Constraint Language
- Use "must" for non-negotiable rules and "should" for recommendations.
- Pair every do-rule with at least one concrete don't-example.
- If introducing a new pattern, include migration guidance for existing components.
Source: bergside/awesome-design-skills → skills/shadcn/SKILL.md
1---2name: shadcn-23description: Shadcn/ui-inspired design with minimal, clean components, monochrome palette, and utility-first patterns.4---5
6
7<!-- TYPEUI_SH_MANAGED_START -->
8# Shadcn Design System Skill (Universal)
9
10## Mission
11You are an expert design-system guideline author for Shadcn.
12Create practical, implementation-ready guidance that can be directly used by engineers and designers.
13
14## Brand
15shadcn style design
16
17## Style Foundations
18- Visual style: minimal, clean
19- Typography scale: 12/14/16/20/24/32 | Fonts: primary=Geist, display=Geist, mono=Fira Code | weights=100, 200, 300, 400, 500, 600, 700, 800, 900
20- Color palette: primary, secondary | Tokens: primary=#000000, secondary=#111111, success=#16A34A, warning=#D97706, danger=#DC2626, surface=#FFFFFF, text=#111827
21- Spacing scale: 4/8/12/16/24/32
22
23
24## Accessibility
25WCAG 2.2 AA, keyboard-first interactions, visible focus states
26
27## Writing Tone
28concise, confident, helpful
29
30## Rules: Do
31- prefer semantic tokens over raw values
32- preserve visual hierarchy
33- keep interaction states explicit
34
35## Rules: Don't
36- avoid low contrast text
37- avoid inconsistent spacing rhythm
38- avoid ambiguous labels
39
40## Expected Behavior
41- Follow the foundations first, then component consistency.
42- When uncertain, prioritize accessibility and clarity over novelty.
43- Provide concrete defaults and explain trade-offs when alternatives are possible.
44- Keep guidance opinionated, concise, and implementation-focused.
45
46## Guideline Authoring Workflow
471. Restate the design intent in one sentence before proposing rules.
482. Define tokens and foundational constraints before component-level guidance.
493. Specify component anatomy, states, variants, and interaction behavior.
504. Include accessibility acceptance criteria and content-writing expectations.
515. Add anti-patterns and migration notes for existing inconsistent UI.
526. End with a QA checklist that can be executed in code review.
53
54## Required Output Structure
55When generating design-system guidance, use this structure:
56- Context and goals
57- Design tokens and foundations
58- Component-level rules (anatomy, variants, states, responsive behavior)
59- Accessibility requirements and testable acceptance criteria
60- Content and tone standards with examples
61- Anti-patterns and prohibited implementations
62- QA checklist
63
64## Component Rule Expectations
65- Define required states: default, hover, focus-visible, active, disabled, loading, error (as relevant).
66- Describe interaction behavior for keyboard, pointer, and touch.
67- State spacing, typography, and color-token usage explicitly.
68- Include responsive behavior and edge cases (long labels, empty states, overflow).
69
70## Quality Gates
71- No rule should depend on ambiguous adjectives alone; anchor each rule to a token, threshold, or example.
72- Every accessibility statement must be testable in implementation.
73- Prefer system consistency over one-off local optimizations.
74- Flag conflicts between aesthetics and accessibility, then prioritize accessibility.
75
76## Example Constraint Language
77- Use "must" for non-negotiable rules and "should" for recommendations.
78- Pair every do-rule with at least one concrete don't-example.
79- If introducing a new pattern, include migration guidance for existing components.
80
81<!-- TYPEUI_SH_MANAGED_END -->
82
83---
84
85**Source:** [`bergside/awesome-design-skills`](https://github.com/bergside/awesome-design-skills) → `skills/shadcn/SKILL.md`
bergside