# Skills Agent skills are reusable capability packs — folders of structured instructions, and sometimes scripts and reference files, that teach an AI coding agent how to do a specific job the same way every time. Install one once and the agent loads it on demand instead of you re-explaining context every session, which keeps its working memory lean. This is the curated, community-ranked index of the best skills for Claude Code, the Claude apps, Cursor, and other agent runtimes. The Agent Skills format was popularized by Anthropic's Claude: a skill is a directory with a SKILL.md file — a name, a short description, and Markdown instructions — optionally bundled with helper scripts and resources. The agent reads only the one-line description until a task matches, then pulls in the full skill. This “progressive disclosure” is what makes skills scale: you can install dozens without bloating the context window, because the model only loads the body of the ones it actually needs. Skills are portable, composable, and inspectable. The same skill can run across projects and, increasingly, across tools that adopt the format, and several can stack on a single task. Because most are open source and version-controlled, you can read exactly what the agent will be told before you install it. Browse the ranked list below, open any skill for its source and setup steps, and upvote the ones that earn a permanent place in your setup. ## Frequently asked questions ### What is an AI agent skill? An agent skill is a packaged set of instructions — and sometimes scripts and reference files — that teaches an AI coding agent how to perform a specific task reliably. Instead of re-explaining context each session, you install the skill once and the agent carries that knowledge forward whenever a matching task comes up. ### How do Agent Skills work? A skill is a folder containing a SKILL.md file with a name, a description, and Markdown instructions. The agent keeps only the short description in context and loads the full skill on demand when a task matches — a pattern called progressive disclosure that lets you keep many skills installed without using up the model's context window. ### How do I install a skill? Most skills install by placing the skill folder in your agent's skills directory, adding it through the tool's plugin or extension system, or pointing the agent at the skill's repository. Open any skill below and follow its link for the exact, source-specific steps. ### What's the difference between a skill and an MCP server? A skill is knowledge: instructions that shape how the agent behaves. An MCP server is a live connection: it gives the agent new tools and data (a database, an API, a filesystem). They're complementary — a skill can tell the agent how and when to use the tools an MCP server exposes. ### Which tools support agent skills? Claude Code and the Claude apps support the Agent Skills format natively, and because skills are plain Markdown folders, other agent runtimes are adopting the pattern. Each entry notes the tools it's built for. ### Are agent skills free and open source? The majority of skills listed here are open source and free to use. Open an entry and follow its link to confirm the license and any requirements before depending on it. ### Can I build my own skill? Yes. Create a folder with a SKILL.md file, write a clear name and description so the agent knows when to use it, then add your instructions and any helper scripts. Many of the skills below are good templates to start from. ### How are skills ranked on Analog? Entries are ranked by community upvotes — one per account — with the newest finds surfaced under the New tab. Everything is human-reviewed before it appears. ## Entries (ranked) - [ui.sh Componentize](https://analoghq.ai/ui-sh/skills/ui-sh-componentize) by ui-sh: Agent skill that breaks large UI files into reusable components for frontend developers using AI-assisted workflows. - [ui.sh](https://analoghq.ai/ui-sh/skills/ui-sh) by ui-sh: Agent skills for UI builders, by the creators of Tailwind CSS and Refactoring UI, wires into Claude Code, Cursor, and Codex to ship interfaces that look designed, not generated. - [Marketing Skills](https://analoghq.ai/coreyhaines31/skills/marketingskills) by coreyhaines31: Open-source collection of 45+ AI agent skills for marketing, CRO, SEO, copywriting, analytics, and growth, built for Claude Code, Cursor, and any Agent Skills-compatible agent. - [ui.sh Markup From Image](https://analoghq.ai/ui-sh/skills/ui-sh-markup-from-image) by ui-sh: Claude skill that turns UI screenshots, Figma exports, and wireframes into semantic, accessible HTML or JSX, no styling included, by design. - [ui.sh Make Responsive](https://analoghq.ai/ui-sh/skills/ui-sh-make-responsive) by ui-sh: Agent skill for adapting desktop UIs to mobile, tablet, and desktop breakpoints, built by the makers of Tailwind CSS and Refactoring UI. - [ui.sh Dark Mode Image](https://analoghq.ai/ui-sh/skills/ui-sh-dark-mode-image) by ui-sh: Agent skill that regenerates light-mode raster images as true dark-mode variants using gpt-image-2, for interface builders using Claude Code, Cursor, or Codex. - [ui.sh Add Dark Mode](https://analoghq.ai/ui-sh/skills/ui-sh-add-dark-mode) by ui-sh: Agent skill for adding thoughtfully designed dark mode to existing UIs, balances contrast across text, surfaces, borders, and images for Claude Code, Cursor, Codex, and more. - [ui.sh Canonicalize Tailwind](https://analoghq.ai/ui-sh/skills/ui-sh-canonicalize-tailwind) by ui-sh: Agent skill for Tailwind CSS cleanup: sorts, deduplicates, and resolves conflicting utility classes inside Claude Code, Cursor, and other coding agents. - [ui.sh Brand Kit](https://analoghq.ai/ui-sh/skills/ui-sh-brand-kit) by ui-sh: ui.sh Brand Kit skill: generate a visual brand direction board with site mockups, typography, and color from a single prompt, for Codex-powered coding agents. - [ui.sh Ideas](https://analoghq.ai/ui-sh/skills/ui-sh-ideas) by ui-sh: ui.sh Ideas skill for AI coding agents: generate and compare multiple UI design directions in the browser before committing to one. - [ui.sh Design](https://analoghq.ai/ui-sh/skills/ui-sh-design) by ui-sh: Claude/Codex/Cursor skill from the Tailwind CSS team that upgrades AI-generated UI from generic to designer-quality, in any existing project. - [PM Skills Marketplace](https://analoghq.ai/phuryn/skills/pm-skills) by phuryn: Open-source PM skills marketplace: 68 AI skills and 42 workflows across 9 Claude plugins for product managers doing discovery, strategy, execution, and launch. - [Loop Library](https://analoghq.ai/forward-future/skills/loop-library) by forward-future: A catalog of repeatable AI agent workflows with built-in feedback loops, plus an installable skill for finding, adapting, and designing your own loops. - [Anthropic Skills](https://analoghq.ai/anthropics/skills/anthropic-skills) by anthropics: Anthropic's official skill library for Claude: modular SKILL.md bundles that add repeatable, domain-specific workflows across docs, dev, design, and enterprise tasks. - [Skills for Real Engineers](https://analoghq.ai/mattpocock/skills/skills-for-real-engineers) by mattpocock: Agent skill collection for engineers who use Claude Code or Codex, small, composable prompts that enforce TDD, domain modeling, and architecture review. - [Awesome GEO](https://analoghq.ai/luka2chat/skills/awesome-geo) by luka2chat: Curated awesome-list of GEO resources for developers and marketers optimizing content for AI answer engines like ChatGPT, Perplexity, and Google AI Overviews. - [Hallmark](https://analoghq.ai/nutlope/skills/hallmark) by nutlope: A design skill for Claude Code, Cursor, and Codex that blocks AI visual clichés and generates structurally distinct, non-template UI, for builders and designers. - [Superpowers](https://analoghq.ai/obra/skills/superpowers) by obra: Open-source agentic skills framework that brings spec-first, TDD-enforced, subagent-driven software development to Claude Code, Cursor, Codex, and 8 other AI coding harnesses. - [Claude Code Thinking Skills](https://analoghq.ai/tjboudreaux/skills/claude-code-thinking-skills) by tjboudreaux: 39 mental-model skills for Claude Code, first principles, Bayesian, OODA, pre-mortem, and more, all invoke-by-name with no setup. - [UI UX Pro Max](https://analoghq.ai/nextlevelbuilder/skills/ui-ux-pro-max) by nextlevelbuilder: Open-source AI design intelligence skill for Claude Code: UI styles, color palettes, font pairings, and UX guidelines in one searchable database. - [Agent Scripts](https://analoghq.ai/steipete/skills/agent-scripts) by steipete: Open-source collection of reusable agent skills, shared AGENTS.MD rules, and portable helper scripts for Codex and Claude agents, by steipete. - [Improve](https://analoghq.ai/shadcn/skills/improve) by shadcn: Agent skill that audits your codebase with a capable model and writes executable plans for cheaper models to implement, by shadcn. --- [View on Analog](https://analoghq.ai/topics/skills)