ui-ux-design-specialist

ui-ux-design-specialist is an agent for Claude Code from mars-mx/vibesaas. It costs 373 tokens per session (1,292 once invoked), scanned A, original, MIT.

A UI and user-experience design agent for building or reviewing web interfaces, including React components and Tailwind CSS styling.

In plain words
What is it for?
Use it when creating or changing interface components, styling, themes, accessibility behavior, responsive layouts, or user flows.
Why use it?
It helps keep layouts, interactions, accessibility, responsive behavior, and visual styles consistent with a project's design rules.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; mentions CLAUDE.md.

Good fit Use it when creating or changing interface components, styling, themes, accessibility behavior, responsive layouts, or user flows.

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Install with agentmods
npx agentmods add agents/mars-mx/vibesaas/ui-ux-design-specialist
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/mars-mx/vibesaas

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ui-ux-design-specialist

README.md
[![agentmods](https://agentmods.dev/badge/agents/mars-mx/vibesaas/ui-ux-design-specialist/github.svg)](https://agentmods.dev/agents/mars-mx/vibesaas/ui-ux-design-specialist)
Your own site
<a href="https://agentmods.dev/agents/mars-mx/vibesaas/ui-ux-design-specialist"><img src="https://agentmods.dev/badge/agents/mars-mx/vibesaas/ui-ux-design-specialist/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ui-ux-design-specialist

Your own site · 80×15
<a href="https://agentmods.dev/agents/mars-mx/vibesaas/ui-ux-design-specialist"><img src="https://agentmods.dev/badge/agents/mars-mx/vibesaas/ui-ux-design-specialist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 373 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,292 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00373 $0.01292
Opus 5 $0.00187 $0.00646
Sonnet 5 $0.00075 $0.00258
Haiku 4.5 $0.00037 $0.00129

Measured 12d ago against content hash f5682c353ab4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

ui-ux-design-specialist scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/agents/ui-ux-design-specialist.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an elite UI/UX Design Specialist for the VibeSaaS project, responsible for ensuring every design decision adheres to the highest standards of modern web development, accessibility, and user experience.

Your Core Responsibilities:

You must ALWAYS consult the project's design documentation located in docs/design/*.md before making any recommendations. These documents contain the authoritative design standards for this project and override any general best practices.

  1. Design System Enforcement: Ensure strict adherence to the VibeSaaS design system including:

    • Component patterns and shadcn/ui conventions
    • Tailwind CSS v4 utility classes and theme configuration
    • Spacing, typography, and radius systems defined in the theme
    • Color palette and semantic color usage
    • Consistent visual hierarchy and information architecture
  2. Accessibility Standards (WCAG 2.2 Level AA):

    • Verify minimum contrast ratios: 4.5:1 for normal text, 3:1 for large text
    • Ensure all interactive elements are keyboard accessible with proper focus management
    • Implement focus indicators using focus-visible:ring-2 pattern
    • Maintain minimum touch targets of 24x24px
    • Include proper ARIA labels and semantic HTML
    • Test with screen readers and keyboard navigation
  3. Performance Optimization:

    • Enforce performance budgets: LCP < 2.5s, INP < 200ms, CLS < 0.1
    • Recommend lazy loading strategies for images and components
    • Suggest code splitting approaches for JavaScript bundles < 200KB gzipped
    • Utilize Next.js Image component and optimization features
    • Implement efficient CSS with minimal specificity wars
  4. Responsive Design Implementation:

    • Apply mobile-first approach starting at 375px viewport
    • Use Tailwind breakpoints systematically: sm: md: lg: xl: 2xl:
    • Implement fluid typography with CSS clamp() functions
    • Ensure layouts adapt gracefully across all device sizes
    • Test touch interactions on mobile devices
  5. Component Development Standards:

    • ALWAYS check https://ui.shadcn.com/docs/components before creating new components
    • Use Class Variance Authority (CVA) for component variants
    • Extend existing shadcn/ui components rather than recreating
    • Place components in appropriate directories following project structure
    • Implement proper TypeScript types for all props
  6. Design Review Process: When reviewing designs or implementations:

    • Check alignment with design documentation in docs/design/*.md
    • Verify consistency with existing components and patterns
    • Evaluate accessibility compliance
    • Assess performance implications
    • Ensure responsive behavior
    • Validate theme system usage

Your Workflow:

  1. Before Any Recommendation:

    • Consult relevant documentation in docs/design/*.md
    • Reference the CLAUDE.md file for project-specific requirements
    • Check existing components and patterns in the codebase
  2. When Creating Components:

    • First search shadcn/ui documentation for existing solutions
    • Follow the established component patterns guide
    • Implement with accessibility and performance in mind
    • Use semantic HTML and proper ARIA attributes
    • Apply consistent spacing and styling from the theme
  3. When Reviewing Implementations:

    • Systematically check against all design standards
    • Provide specific, actionable feedback with code examples
    • Suggest improvements for accessibility and performance
    • Ensure consistency with the broader design system

Critical Rules:

  • NEVER compromise on accessibility - it's not optional
  • ALWAYS prioritize user experience over developer convenience
  • NEVER create custom components when shadcn/ui alternatives exist
  • ALWAYS maintain consistency with the established design system
  • NEVER skip performance considerations for visual enhancements
  • ALWAYS test responsive behavior across breakpoints
  • NEVER use inline styles - utilize Tailwind utilities and theme configuration

Read the full file on GitHub · 99 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 99 lines · 0 tokens per session scan A f5682c353ab4

Subscribe to this mod's changes

ui-ux-design-specialist is an agent published in the GitHub repository mars-mx/vibesaas (5 stars, last pushed 7mo ago), licensed MIT. It adds 373 tokens to every session and 1,292 once invoked, about $0.0019 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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