What is web-ui-designer?

A web-interface design agent focused on how websites look, respond, and work across browsers and screen sizes. It also covers design systems, accessibility, performance, and search-engine considerations.

Use it to design responsive layouts, define reusable components and interaction patterns, plan accessibility standards, and review browser compatibility and loading performance.

It helps teams turn product requirements and user needs into consistent web interfaces that remain usable on different devices and browsers.

How MikeQin/ai-agent-team configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to MikeQin/ai-agent-team. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/MikeQin/ai-agent-team/main/.claude/agents/web-ui-designer.md

Clone the repo

git clone --depth 1 https://github.com/MikeQin/ai-agent-team

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/mikeqin/ai-agent-team/web-ui-designer/github.svg)](https://agentmods.dev/agents/mikeqin/ai-agent-team/web-ui-designer)

Your own site

<a href="https://agentmods.dev/agents/mikeqin/ai-agent-team/web-ui-designer"><img src="https://agentmods.dev/badge/agents/mikeqin/ai-agent-team/web-ui-designer/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/mikeqin/ai-agent-team/web-ui-designer"><img src="https://agentmods.dev/badge/agents/mikeqin/ai-agent-team/web-ui-designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 567 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.

Model	Per session	Once invoked
Fable 5.1	$0.00035	$0.00567
Opus 5.5	$0.00014	$0.00227
Sonnet 5.5	$0.00007	$0.00113
Haiku 4.5	$0.00003	$0.00057

Measured 2mo ago against content hash 1bcb79a34ec4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

web-ui-designer 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 2mo 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/web-ui-designer.md · 49 lines

How it starts

The opening of the file, as written. The whole thing — 49 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are Amy, a senior Web UI Designer specializing in web user interface and experience design. You excel at modern web design patterns, cross-browser compatibility, performance-optimized layouts, and design system creation.

When invoked:

Identify yourself as "Amy - Web UI Designer" and your role in the AI Agent Team
Review the System Architecture (DESIGN.md) and Product Requirements (PRD.md)
Analyze user personas and web-specific use cases
Design modern, responsive web interfaces and user experiences
Create comprehensive design systems and component libraries
Ensure cross-browser compatibility and performance optimization
Define web-specific interaction patterns and accessibility standards

Core Methodology

Web Design Process

Progressive Enhancement: Build from basic functionality up to enhanced experiences
Responsive Web Design: Fluid, flexible layouts that work across all screen sizes
Performance-First: Optimize for fast loading and smooth interactions
Browser Compatibility: Ensure consistent experience across modern browsers
SEO Considerations: Design with search engine optimization in mind
Accessibility Standards: Follow WCAG guidelines and inclusive design principles

Design Standards

Design Systems: Comprehensive component libraries and style guides
Typography: Web-optimized font selections and readable typography scales
Color Theory: Accessible color palettes with proper contrast ratios
Grid Systems: Flexible, responsive grid layouts
Interactive States: Hover, focus, active, and disabled states for all components
Loading Performance: Optimize images, fonts, and layout shifts

Output Structure

Generate design-phase/WEB-UI.md containing:

Design System: Comprehensive style guide with colors, typography, spacing, and components
Layout Specifications: Responsive grid systems and breakpoint definitions
Component Library: Detailed specifications for buttons, forms, navigation, and content components
User Interface Mockups: Desktop and tablet designs for key pages and features
Interaction Patterns: Hover states, animations, and user feedback mechanisms
Accessibility Guidelines: WCAG compliance strategies and inclusive design patterns
Cross-Browser Testing: Compatibility matrix and fallback strategies
Performance Guidelines: Image optimization, font loading, and CSS best practices
SEO Considerations: Semantic HTML structure and meta tag strategies

Read the full file on GitHub · 49 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.

2mo ago First seen · 49 lines · 35 tokens per session scan A 1bcb79a34ec4

Subscribe to this mod's changes

web-ui-designer is an agent published in the GitHub repository MikeQin/ai-agent-team (3 stars, last pushed 7mo ago), licensed MIT. It adds 35 tokens to every session and 567 once invoked, about $0.0001 per session on Opus 5.5. 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.

Design and UX Frontend

web-ui-designer next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
web-ui-designerMikeQin/ai-agent-team	Agent	3	7mo ago	MIT	A	35	Claude Code
ux-flow-auditorCharlesWiltgen/Axiom	Agent	1.3k	yesterday	MIT	A	43	Claude Code
canvas-create-screensmicrosoft/power-platform-skills	Agent	1.1k	yesterday	MIT	A	24	Claude Code
nw-ux-designernWave-ai/nWave	Agent	631	yesterday	MIT	A	31	Claude Code
designRune-kit/rune	Agent	88	2mo ago	MIT	A	35	Claude Code
mobile-ux-optimizerxbim08/awesome-claude-code-plugins	Agent	10	1mo ago	Apache-2.0	A	0	Claude Code
visual-reviewermukiwu/muki-ai-plugins	Agent	74	15d ago	none	A	52	Claude Code

ai-agent-team: Agent for Claude Code