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Independent project, not affiliated with Anthropic
addyosmani avatar

Frontend Ui Engineering

addyosmani/agent-skills
25.6k installs88.2k stars
Summary

This is a comprehensive guide for building UIs that don't look AI-generated. It's opinionated about avoiding the purple gradients, excessive rounding, and generic card grids that scream "made by a language model." You get solid patterns for component architecture, when to use different state management approaches, and accessibility requirements that actually matter. The spacing scale rules and composition-over-configuration examples are immediately useful. Best for projects where the UI quality bar is high and you want Claude to default to production patterns instead of placeholder aesthetics. Includes realistic guidance on keyboard navigation, focus management, and responsive design without the usual tutorial bloat.

Install to Claude Code

npx -y skills add addyosmani/agent-skills --skill frontend-ui-engineering --agent claude-code

Installs into .claude/skills of the current project.

CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Lid closed, agents working
Lid closed, agents working
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Agent, connect blockchain
Agent, connect blockchain
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
Block distraction from your iPhone for freeBlock distraction from your iPhone for free
Block distraction from your iPhone for free
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
CodeHealth MCP ServerCodeHealth MCP Server
CodeHealth MCP Server
Protect your code quality, stop the AI slop.
Try For Free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Open Steps
Open Steps
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Lid closed, agents working
Lid closed, agents working
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Agent, connect blockchain
Agent, connect blockchain
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
Block distraction from your iPhone for freeBlock distraction from your iPhone for free
Block distraction from your iPhone for free
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
CodeHealth MCP ServerCodeHealth MCP Server
CodeHealth MCP Server
Protect your code quality, stop the AI slop.
Try For Free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Open Steps
Open Steps
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
Files
SKILL.md

Select a file.

Featured
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Lid closed, agents working
Lid closed, agents working
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Agent, connect blockchain
Agent, connect blockchain
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
Block distraction from your iPhone for freeBlock distraction from your iPhone for free
Block distraction from your iPhone for free
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
CodeHealth MCP ServerCodeHealth MCP Server
CodeHealth MCP Server
Protect your code quality, stop the AI slop.
Try For Free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Open Steps
Open Steps
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
Categories
Frontend DevelopmentCode Review & QualityAI & Agent BuildingDesign & UI/UX
First SeenApr 16, 2026
View on GitHub

More from addyosmani/agent-skills

All 24 skills →
  • Planning And Task Breakdown25.2k
  • Spec Driven Development25k
  • Security And Hardening24.8k
  • Performance Optimization24.2k
  • Documentation And Adrs24k
  • Incremental Implementation23.7k
  • Code Simplification23.7k
  • Debugging And Error Recovery23.6k
  • Test Driven Development23.3k
  • Context Engineering22.9k
  • Api And Interface Design22.5k
  • Using Agent Skills22k
  • Idea Refine22k
  • Git Workflow And Versioning21.6k
  • Browser Testing With Devtools21.5k
  • Ci Cd And Automation21.3k
  • Shipping And Launch20.9k
  • Source Driven Development20.8k
  • Deprecation And Migration20.7k
  • Interview Me19.2k
  • Doubt Driven Development18.9k
  • Observability And Instrumentation16.7k
  • Code Review And Quality28.7k

Recommended

More Frontend Development →
supercent-io avatar
ui-component-patterns

supercent-io/skills-template

Modern React component patterns for building scalable, maintainable UI libraries.
10.7k
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analogjs avatar
angular-component

analogjs/angular-skills

Create modern Angular standalone components following v20+ best practices. Use for building UI components with signal-based inputs/outputs, OnPush change detection, host bindings, content projection, and lifecycle hooks. Triggers on component creation, refactoring class-based inputs to signals, adding host bindings, or implementing accessible interactive components.
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ulpi-io avatar
frontend-design-ui-ux

ulpi-io/skills

Produce a distinctive, LOCKED design language plus an implementation-ready UX/UI spec, written to `.ulpi/design/`: a per-brief visual identity (palette, type, signature), the design system to build on, user flows and states, component briefs, and accessibility constraints. Commits to a bold aesthetic direction, bans AI-slop by name, and locks the identity so every screen and future session stays consistent. Can visit inspiration links with the browse skill to extract real design DNA. Ends with a build handoff that a delegated engineering agent implements — a DESIGN-SPEC skill that produces the spec, never production UI code. Use for new features, redesigns, or design-system work where the build should follow a locked spec.
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bobmatnyc avatar
tailwind-css

bobmatnyc/claude-mpm-skills

Tailwind CSS utility-first framework for rapid UI development with responsive design and dark mode
1.2k
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sergiodxa avatar
frontend-react-best-practices

sergiodxa/agent-skills

React performance optimization guidelines. Use when writing, reviewing, or refactoring React components to ensure optimal rendering and bundle patterns. Triggers on tasks involving React components, hooks, memoization, or bundle optimization.
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aj-geddes avatar
react-component-architecture

aj-geddes/useful-ai-prompts

Design scalable React components using functional components, hooks, composition patterns, and TypeScript. Use when building reusable component libraries and maintainable UI systems.
638
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