CCM
/Skills
SkillsMCPMarketplacesDigestToolsAdvertise

This week in Claude

Every Monday: Claude Code, Agent SDK, MCP, and the Anthropic platform moves worth your time.

Skills by Category
Frontend DevelopmentBackend & APIsTesting & QASecurityDevOps & CI/CDGit & Pull RequestsDocumentationCode Review & QualityAI & Agent BuildingSkill Development
MCP Servers by Category
Sales & MarketingWeb & Browser AutomationDatabasesAI & LLM ToolsCloud & InfrastructureCommunication & MessagingDeveloper ToolsDesign & CreativeDocuments & KnowledgeSearch & Web Crawling
Marketplaces by Category
AI Agents & OrchestrationLLM IntegrationDevelopment ToolsFrontend & UIBackend & APIsDatabasesTesting & Code QualityDevOps & CloudSecurity & ComplianceGit & Version Control

Claude Code Marketplaces

Discover Claude Code plugins, extensions, and tools. Automatically updated directory of Anthropic Claude AI marketplaces with development tools, productivity plugins, and integrations.

Resources

  • Browse Skills
  • Browse MCP Servers
  • Browse Marketplaces
  • Skill index
  • MCP index
  • Marketplace index
  • Plugins Reference

Community

  • About
  • Tools
  • Feedback
  • Privacy Policy
  • Advertise

Built for the Claude Code community with Claude Code by mertbuilds.com

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 →
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 →
inference shell
inference shell
create and run specialised agents in minutes
build now →
MCP-ready Email SendingMCP-ready Email Sending
MCP-ready Email Sending
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
Capacitor - Shared memory for your team’s coding agents.
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
CodeScene MCP Server
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Give your AI the whole web as clean markdownGive your AI the whole web as clean markdown
Give your AI the whole web as clean markdown
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the 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 →
inference shell
inference shell
create and run specialised agents in minutes
build now →
MCP-ready Email SendingMCP-ready Email Sending
MCP-ready Email Sending
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
Capacitor - Shared memory for your team’s coding agents.
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
CodeScene MCP Server
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Give your AI the whole web as clean markdownGive your AI the whole web as clean markdown
Give your AI the whole web as clean markdown
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
Files
SKILL.md

Select a file.

Featured
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the 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 →
inference shell
inference shell
create and run specialised agents in minutes
build now →
MCP-ready Email SendingMCP-ready Email Sending
MCP-ready Email Sending
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
Capacitor - Shared memory for your team’s coding agents.
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
CodeScene MCP Server
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Give your AI the whole web as clean markdownGive your AI the whole web as clean markdown
Give your AI the whole web as clean markdown
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
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
88
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.
10.4k
595
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.
2.1k
4
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
68
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.
1.1k
93
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
317