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Claude skills and agent skills

Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.

Best matchesWorked for most · soon
PostHogSkill

qa-frontend

PostHog/posthog/.agents/skills/qa-frontend/SKILL.md

Internal PostHog developer frontend/browser QA skill. Use only when a PostHog developer explicitly asks to run frontend QA, browser-test a PR, verify a UI flow against the local PostHog stack, use qa-frontend, or QA current frontend changes with browser/runtime evidence. Do not use for generic code review, PR review, "check my changes", CI debugging, or security audit; use qa-team, debugging-ci-failures, or security-audit instead. Runs in PR mode or local mode, plans adaptive browser and visual checks, drives browser MCP/tooling such as Playwright MCP or Chrome DevTools MCP, captures evidence, and applies only approved/narrow fixes.

40k5d agoDiscuss
affaan-mSkill

frontend-slides

affaan-m/ECC/.agents/skills/frontend-slides/SKILL.md

Create stunning, animation-rich HTML presentations from scratch or by converting PowerPoint files. Use when the user wants to build a presentation, convert a PPT/PPTX to web, or create slides for a talk/pitch. Helps non-designers discover their aesthetic through visual exploration rather than abstract choices.

246k30d agoDiscuss
affaan-mSkill

frontend-slides

affaan-m/ECC/.cursor/skills/frontend-slides/SKILL.md

Create stunning, animation-rich HTML presentations from scratch or by converting PowerPoint files. Use when the user wants to build a presentation, convert a PPT/PPTX to web, or create slides for a talk/pitch. Helps non-designers discover their aesthetic through visual exploration rather than abstract choices.

246k30d agoDiscuss
AnthropicSkill

frontend-design

anthropics/skills/skills/frontend-design/SKILL.md

Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defaults.

179k43d agoDiscuss
bytedanceSkill

frontend-design

bytedance/deer-flow/skills/public/frontend-design/SKILL.md

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI). Generates creative, polished code and UI design that avoids generic AI aesthetics.

83k3mo agoDiscuss
zarazhangruiSkill

frontend-slides

zarazhangrui/frontend-slides/SKILL.md

Create stunning, animation-rich HTML presentations from scratch or by converting PowerPoint files. Use when the user wants to build a presentation, convert a PPT/PPTX to web, or create slides for a talk/pitch. Helps non-designers discover their aesthetic through visual exploration rather than abstract choices.

29k4mo agoDiscuss
langgeniusSkill

frontend-testing

langgenius/dify/.agents/skills/frontend-testing/SKILL.md

Use when writing or changing Vitest or React Testing Library tests under `web/` or `packages/dify-ui/`, or when the user explicitly requests frontend test strategy, including evaluation of an existing strategy. Do not use for frontend code-review-only requests, general testability discussion, Python tests, or Cucumber/Playwright E2E.

157k4d agoDiscuss
affaan-mSkill

frontend-patterns

affaan-m/ECC/.agents/skills/frontend-patterns/SKILL.md

Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices. Use when building or reviewing React or Next.js components, state, or render performance.

246k30d agoDiscuss
Significant-GravitasSkill

write-frontend-tests

Significant-Gravitas/AutoGPT/.claude/skills/write-frontend-tests/SKILL.md

Analyze the current branch diff against dev, plan integration tests for changed frontend pages/components, and write them. TRIGGER when user asks to write frontend tests, add test coverage, or 'write tests for my changes'.

188k19d agoDiscuss
GitHubSkill

premium-frontend-ui

github/awesome-copilot/skills/premium-frontend-ui/SKILL.md

A comprehensive guide for GitHub Copilot to craft immersive, high-performance web experiences with advanced motion, typography, and architectural craftsmanship.

39k8d agoDiscuss
langgeniusSkill

frontend-code-review

langgenius/dify/.agents/skills/frontend-code-review/SKILL.md

Use only when the user explicitly requests a review or audit of frontend code under `web/` or `packages/dify-ui/`. Supports pending-change, file-focused, and pasted-diff reviews. Do not use for implementation-only requests, diagnosis without review intent, or backend-only code.

157k4d agoDiscuss
LeonxlnxSkill

imagegen-frontend-web

Leonxlnx/taste-skill/skills/imagegen-frontend-web/SKILL.md

Elite frontend image-direction skill for generating premium, conversion-aware website design references. CRITICAL OUTPUT RULE — generate ONE separate horizontal image FOR EVERY section. A landing page with 8 sections produces 8 images. Never compress multiple sections into one image. Enforces composition variety (not always left-text / right-image), background-image freedom, varied CTAs, varied hero scales (giant / mid / mini minimalist), narrative concept spine, second-read moments, and a single consistent palette across all images. Optimized for landing pages, marketing sites, and product comps that developers or coding models can accurately recreate.

91k5mo agoDiscuss
LeonxlnxSkill

design-taste-frontend

Leonxlnx/taste-skill/skills/taste-skill/SKILL.md

Anti-slop frontend skill for landing pages, portfolios, and redesigns. The agent reads the brief, infers the right design direction, and ships interfaces that do not look templated. Real design systems when applicable, audit-first on redesigns, strict pre-flight check.

91k5mo agoReads credentialsDiscuss
SentrySkill

frontend-data-fetching

getsentry/sentry/.agents/skills/frontend-data-fetching/SKILL.md

Fetch data in Sentry's frontend with TanStack Query and apiOptions. Use when adding or editing React code in static/ that calls the API — useQuery/useMutation/useInfiniteQuery, apiOptions, queryOptions/mutationOptions, fetchMutation, reading response headers/pagination, or conditional fetching. Trigger on "fetch data", "add an API call", "useQuery", "useMutation", "apiOptions", "queryFn", "pagination headers", "X-Hits", or "why is my query type wrong".

45k3mo agoDiscuss
SentrySkill

migrate-frontend-forms

getsentry/sentry/.agents/skills/migrate-frontend-forms/SKILL.md

Guide for migrating forms from the legacy JsonForm/FormModel system to the new TanStack-based form system.

45k3mo agoDiscuss
CloudflareSkill

frontend-conventions

cloudflare/cloudflare-os/.agents/skills/frontend-conventions/SKILL.md

Use for creating, modifying, moving, or reviewing React frontend code anywhere in packages/*, including Workshop pages, gatekeeper management apps, shared UI, components, hooks, forms, interactions, styling, accessibility, and frontend tests.

10k9d agoDiscuss
SentrySkill

generate-frontend-forms

getsentry/sentry/.agents/skills/generate-frontend-forms/SKILL.md

Guide for creating forms using Sentry's new form system. Use when implementing forms, form fields, validation, or auto-save functionality.

45k3mo agoDiscuss
siteboonSkill

frontend-module-standards

siteboon/claudecodeui/.agents/skills/frontend-module-standards/SKILL.md

Enforce this repository's React and TypeScript frontend module architecture standards. Use whenever creating, modifying, refactoring, or reviewing frontend code under `src/`, including feature modules, components, hooks, contexts, shared UI, API access, state, utilities, and frontend tests. Do not apply these rules to backend code under `server/` or non-frontend scaffolding.

14k30d agoDiscuss
addyosmaniSkill

frontend-ui-engineering

addyosmani/agent-skills/skills/frontend-ui-engineering/SKILL.md

Builds production-quality, accessible, responsive user-facing UIs. Use when building or modifying interfaces and pages, creating components, implementing layouts, meeting WCAG accessibility requirements, managing state, or when the output needs to look and feel production-quality rather than AI-generated.

100k5d agoDiscuss
LeonxlnxSkill

imagegen-frontend-mobile

Leonxlnx/taste-skill/skills/imagegen-frontend-mobile/SKILL.md

Elite mobile app image-generation skill for creating premium, app-native screen concepts and flows. Designed for iOS, Android, and cross-platform mobile products. Prioritizes clean hierarchy, comfortably readable text, strong multi-screen consistency, controlled color palettes, non-generic creative direction, textured surfaces, image-led composition, tasteful custom iconography, and clean phone mockup framing. By default, screens should be shown inside a subtle premium iPhone or similar phone mockup with a visible frame, while the main focus stays on the app content itself. This skill generates images only. It does not write code.

91k5mo agoDiscuss

About skills

What is a Claude skill?

A folder with a SKILL.md file: a name, a description of when to use it, and instructions. Claude loads a skill only when the task matches its description.

How do I use one I find here?

Copy the folder into your project's .claude/skills/ directory, or into your own skills folder to use it everywhere.

What do the warnings mean?

We read each file for commands that read secrets, delete things or pipe downloads into a shell, and say so before you copy it. No warning is not a promise that a file is safe.

Which skills worked for people?

Open a skill to see its discussion. Reports from people and their agents are coming.