ui-review – Design & UI skill for AI agents

UI Design Review

When to Use

Use this skill when you need review UI code for design system compliance, accessibility, and best practices.

When NOT to use

• For accessibility-only issues → use /ss-a11y
• For Nielsen UX heuristics → use /ss-audit
• For a quick automated check → use /ss-lint
• For non-UI code (data fetching, business rules)

Review the file: $ARGUMENTS

This checklist targets the upstream StyleSeed conventions. Verify the actual project design system first; font/spacing/radius rules and referenced CLAUDE.md/VISUAL-CRAFT.md are project conventions, not universal accessibility requirements, and those files are not bundled here. Mark unavailable context rather than imposing it on another project.

Checklist

1. Design Token Compliance

• [ ] No hardcoded hex colors (use semantic tokens: text-foreground, bg-brand, etc.)
• [ ] No hardcoded px spacing in Tailwind (use p-6 not p-[24px])
• [ ] Shadows use CSS variables (shadow-[var(--shadow-card)])
• [ ] Border radius follows the scale (rounded-md, rounded-lg, rounded-2xl)

2. Component Conventions

• [ ] Uses data-slot attribute
• [ ] Uses cn() for className merging
• [ ] Props typed with React.ComponentProps<>
• [ ] Supports className prop override
• [ ] Named export (not default export for components)
• [ ] No wrapper components that only add a className

3. Accessibility (a11y)

• [ ] Prefer 44x44 CSS pixel pointer targets as a design goal; WCAG 2.2 AA SC 2.5.8 is 24x24 or an applicable exception, so smaller controls are not automatically AA failures ([W3C](https://www.w3.org/WAI/WCAG22/Understanding/target-size-minimum))
• [ ] focus-visible styles on all interactive elements
• [ ] Proper aria-* attributes where needed
• [ ] Color contrast meets WCAG AA (4.5:1 for text, 3:1 for large text)
• [ ] Animations respect prefers-reduced-motion
• [ ] Images have alt text
• [ ] Form inputs have associated labels

4. Mobile Best Practices

• [ ] No horizontal overflow
• [ ] Touch-friendly spacing between interactive elements
• [ ] Safe area insets handled for notched devices
• [ ] Text sizes >= 12px for readability
• [ ] Scrollable containers have -webkit-overflow-scrolling: touch

5. Performance

• [ ] No unnecessary re-renders (stable references, memoization where needed)
• [ ] Offscreen images are lazy-loaded where beneficial; do not defer a critical above-the-fold/LCP image automatically
• [ ] Heavy components are code-split

6. Typography

• [ ] Uses the Pretendard/Inter font stack
• [ ] Font sizes from the 14-step scale (10-48px, see CLAUDE.md)
• [ ] Proper font weights (400, 500, 600, 700)
• [ ] Display text (36-48px): leading-none + tracking-[-0.02em]
• [ ] Heading text (18-24px): leading-snug + tracking-[-0.01em]
• [ ] Body text (14-17px): leading-normal (no custom tracking)
• [ ] Caption uppercase (10-13px): tracking-[0.05em] or tracking-wide
• [ ] No line-height: 1.5 on display/heading text (too loose)

7. Spacing Consistency

• [ ] All spacing values are multiples of 6px (p-1.5, p-3, p-6, etc.)
• [ ] No arbitrary spacing (p-5=20px, gap-3.5=14px are violations)
• [ ] Uses size-* shorthand instead of w-* h-*
• [ ] Uses ms-*/me-* instead of ml-*/mr-* (logical properties)
• [ ] Motion transitions use design tokens (duration-[var(--duration-fast)])

8. Coherence (VISUAL-CRAFT.md §C0 — the "one choice per axis" laws)

> The biggest reason a UI reads as "AI-generated" isn't ugly parts — it's *mixed*

> parts. Check that each axis below uses ONE value system-wide; flag a mix as a real

> issue, not a nitpick.

• [ ] One radius personality — sharp (0-4px) OR soft (8-12px) OR pill, applied to every card/button/input/modal. No mixing (e.g. a rounded-none panel with rounded-full buttons).
• [ ] One accent color for interactive emphasis (+ semantic red/green/amber only) — not two+ competing accents.
• [ ] No emoji as UI icons (🚗🧺⭐ as list/nav/status/category markers) — they inject many uncontrolled hues; use one line-icon set in currentColor.
• [ ] Status color = severity, not decoration — a normal/OK/"보통" state is neutral grey (not colored); color marks only the minority of rows that need attention; same value → same color.
• [ ] No decorative hues — favorite stars, category dots, avatars use the accent or grey, not a new color each.
• [ ] One shadow language — same light direction, same scale/tint; not some black + some tinted, some up-lit + some down-lit.
• [ ] One icon family / fill mode / stroke weight across the file.
• [ ] Nested-radius law — an element inside a rounded container uses inner = outer − padding, not the same radius (which bulges).
• [ ] Consistent control heights — buttons, inputs, selects share a height set (e.g. 40px).
• [ ] Errors/states never rely on color alone (icon + text too).

Output Format

Provide:

1. Score: Pass / Needs Improvement / Fail

2. Issues: List each violation with file:line reference

3. Fixes: Concrete code changes for each issue

Example

User request:

> Review UI code for design system compliance, accessibility, and best practices.

Limitations

• Use this skill only when the task clearly matches its upstream source and local project context.
• Verify commands, generated code, dependencies, credentials, and external service behavior before applying changes.
• Do not treat examples as a substitute for environment-specific tests, security review, or user approval for destructive or costly actions.