# UI Review

> Use when reviewing UI code for StyleSeed design-system compliance, accessibility, mobile ergonomics, spacing discipline, and implementation quality.

- Skill: `hybridlabor-api/ui-review` (Agent Skill)
- Install (CLI): `npx skillmds@latest add hybridlabor-api/ui-review`
- Raw SKILL.md: https://api.skillmd.com/api/skills/hybridlabor-api/ui-review/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Web & Frontend
- Author: hybridlabor-api (https://skillmd.com/u/hybridlabor-api)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/hybridlabor-api/ui-review

---


# UI Review

## Overview

Part of [StyleSeed](https://github.com/bitjaru/styleseed), this skill audits UI code against the Toss seed's conventions instead of reviewing it as generic frontend work. It focuses on design-token discipline, component ergonomics, accessibility, mobile readiness, typography, and spacing consistency.

## When to Use
- Use when a component or page should follow the StyleSeed Toss design language
- Use when reviewing a UI-heavy PR for consistency and design-system violations
- Use when the output looks "mostly fine" but feels off in subtle ways
- Use when you need a structured review with concrete fixes

## Review Checklist

### Design Tokens

- no hardcoded hex colors when semantic tokens exist
- no improvised shadow values when tokenized shadows exist
- no arbitrary radius choices outside the system scale
- no random spacing values that break the seed rhythm

### Component Conventions

- uses the project's class merge helper
- supports `className` extension when appropriate
- uses the agreed typing pattern
- avoids wrapper components that only forward one class string
- reuses existing primitives before inventing new ones

### Accessibility

- touch targets large enough for mobile
- visible keyboard focus states
- labels and `aria-*` attributes where needed
- adequate color contrast
- reduced-motion respect for animation

### Mobile UX

- no horizontal overflow
- safe-area handling where relevant
- readable text sizes
- thumb-friendly interaction spacing
- bottom nav or sticky actions do not obscure content

### Typography and Spacing

- uses the system type hierarchy
- display and headings are not overly loose
- body text remains readable
- spacing follows the seed grid instead of arbitrary values

## Output Format

Return:
1. A verdict: Pass, Needs Improvement, or Fail
2. A prioritized list of issues with file and line references when available
3. Concrete fixes for each issue
4. Any open questions where the design intent is ambiguous

## Best Practices

- Review against the seed, not against personal taste
- Separate stylistic drift from real usability or accessibility bugs
- Prefer actionable diffs over abstract criticism
- Call out duplication when an existing component already solves the problem

## Additional Resources

- [StyleSeed repository](https://github.com/bitjaru/styleseed)
- [Source skill](https://github.com/bitjaru/styleseed/blob/main/seeds/toss/.claude/skills/ui-review/SKILL.md)

## Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.


## Core Process
1. Pull the code and render the UI locally.
2. Inspect elements to verify the use of exact design tokens for spacing and color.
3. Test the UI on a simulated mobile device for touch ergonomics.
4. Run accessibility checks (contrast, ARIA) and test interactive states.

## Common Rationalizations
| Rationalization | Reality |
|---|---|
| The UI looks fine in my browser, so I won't check the design tokens. | Visual similarity does not guarantee structural compliance with the design system. |
| I'll approve this PR; the spacing is off by just 2px. | Small spacing inconsistencies compound, destroying the design system's integrity. |
| The developer said they tested on mobile, no need for me to check. | Mobile ergonomics must be explicitly verified against StyleSeed standards. |

## Red Flags
- Approving PRs with hardcoded colors or spacing values.
- Failing to test interactive states (focus, hover) during the review.
- Overlooking low contrast ratios or missing ARIA attributes.

## Verification
- [ ] Code has been audited for hardcoded design values.
- [ ] Mobile layout and ergonomics have been explicitly verified.
- [ ] Accessibility requirements (contrast, ARIA) pass standard checks.