AI Agent Skills
Reusable capabilities for AI coding agents (Claude Code, Cursor, Codex, Windsurf). Published by Anthropic, Vercel, and respected community authors — synced daily from their public GitHub repos.
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Skill results
algorithmic-art
AnthropicCreating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields,…
brand-guidelines
AnthropicApplies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual…
canvas-design
AnthropicCreate beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create…
claude-api
AnthropicReference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. TRIGGER — read BEFORE opening the target file;…
doc-coauthoring
AnthropicGuide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This…
docx
AnthropicUse this skill whenever the user wants to create, read, edit, or manipulate Word documents (.docx files). Triggers include: any mention of 'Word doc', 'word document', '.docx', or requests to…
frontend-design
AnthropicCreate 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…
internal-comms
AnthropicA set of resources to help me write all kinds of internal communications, using the formats that my company likes to use. Claude should use this skill whenever asked to write some sort of internal…
mcp-builder
AnthropicGuide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate…
Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart,…
pptx
AnthropicUse this skill any time a .pptx file is involved in any way — as input, output, or both. This includes: creating slide decks, pitch decks, or presentations; reading, parsing, or extracting text from…
skill-creator
AnthropicCreate new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a…
slack-gif-creator
AnthropicKnowledge and utilities for creating animated GIFs optimized for Slack. Provides constraints, validation tools, and animation concepts. Use when users request animated GIFs for Slack like "make me a…
template-skill
AnthropicReplace with description of the skill and when Claude should use it.
theme-factory
AnthropicToolkit for styling artifacts with a theme. These artifacts can be slides, docs, reportings, HTML landing pages, etc. There are 10 pre-set themes with colors/fonts that you can apply to any artifact…
web-artifacts-builder
AnthropicSuite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state…
webapp-testing
AnthropicToolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser…
xlsx
AnthropicUse this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .csv, or .tsv file (e.g.,…
deploy-to-vercel
VercelDeploy applications and websites to Vercel. Use when the user requests deployment actions like "deploy my app", "deploy and give me the link", "push this live", or "create a preview deployment".
vercel-cli-with-tokens
VercelDeploy and manage projects on Vercel using token-based authentication. Use when working with Vercel CLI using access tokens rather than interactive login — e.g. "deploy to vercel", "set up vercel",…
vercel-composition-patterns
VercelReact composition patterns that scale. Use when refactoring components with boolean prop proliferation, building flexible component libraries, or designing reusable APIs. Triggers on tasks involving…
vercel-optimize
VercelUse for Vercel cost and performance optimization on deployed projects, especially Next.js, SvelteKit, Nuxt, and limited Astro apps. Collect Vercel metrics, usage, project config, and code scan…
vercel-react-best-practices
VercelReact and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance…
vercel-react-native-skills
VercelReact Native and Expo best practices for building performant mobile apps. Use when building React Native components, optimizing list performance, implementing animations, or working with native…
vercel-react-view-transitions
VercelGuide for implementing smooth, native-feeling animations using React's View Transition API (`<ViewTransition>` component, `addTransitionType`, and CSS view transition pseudo-elements). Use this…
web-design-guidelines
VercelReview UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my site against best practices".
writing-guidelines
VercelReview docs/prose for Writing Guidelines compliance. Use when asked to "review my docs", "check writing style", "audit prose", "review docs voice and tone", or "check this page against the writing…
caveman
Matt PocockUltra-compressed communication mode. Cuts token usage ~75% by dropping filler, articles, and pleasantries while keeping full technical accuracy. Use when user says "caveman mode", "talk like…
design-an-interface
Matt PocockGenerate multiple radically different interface designs for a module using parallel sub-agents. Use when user wants to design an API, explore interface options, compare module shapes, or mentions…
diagnose
Matt PocockDisciplined diagnosis loop for hard bugs and performance regressions. Reproduce → minimise → hypothesise → instrument → fix → regression-test. Use when user says "diagnose this" / "debug this",…
edit-article
Matt PocockEdit and improve articles by restructuring sections, improving clarity, and tightening prose. Use when user wants to edit, revise, or improve an article draft.
git-guardrails-claude-code
Matt PocockSet up Claude Code hooks to block dangerous git commands (push, reset --hard, clean, branch -D, etc.) before they execute. Use when user wants to prevent destructive git operations, add git safety…
grill-me
Matt PocockInterview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get grilled on…
grill-with-docs
Matt PocockGrilling session that challenges your plan against the existing domain model, sharpens terminology, and updates documentation (CONTEXT.md, ADRs) inline as decisions crystallise. Use when user wants…
handoff
Matt PocockCompact the current conversation into a handoff document for another agent to pick up.
improve-codebase-architecture
Matt PocockFind deepening opportunities in a codebase, informed by the domain language in CONTEXT.md and the decisions in docs/adr/. Use when the user wants to improve architecture, find refactoring…
migrate-to-shoehorn
Matt PocockMigrate test files from `as` type assertions to @total-typescript/shoehorn. Use when user mentions shoehorn, wants to replace `as` in tests, or needs partial test data.
obsidian-vault
Matt PocockSearch, create, and manage notes in the Obsidian vault with wikilinks and index notes. Use when user wants to find, create, or organize notes in Obsidian.
prototype
Matt PocockBuild a throwaway prototype to flesh out a design before committing to it. Routes between two branches — a runnable terminal app for state/business-logic questions, or several radically different UI…
qa
Matt PocockInteractive QA session where user reports bugs or issues conversationally, and the agent files GitHub issues. Explores the codebase in the background for context and domain language. Use when user…
request-refactor-plan
Matt PocockCreate a detailed refactor plan with tiny commits via user interview, then file it as a GitHub issue. Use when user wants to plan a refactor, create a refactoring RFC, or break a refactor into safe…
review
Matt PocockReview the changes since a fixed point (commit, branch, tag, or merge-base) along two axes — Standards (does the code follow this repo's documented coding standards?) and Spec (does the code match…
scaffold-exercises
Matt PocockCreate exercise directory structures with sections, problems, solutions, and explainers that pass linting. Use when user wants to scaffold exercises, create exercise stubs, or set up a new course…
setup-matt-pocock-skills
Matt PocockSets up an `## Agent skills` block in AGENTS.md/CLAUDE.md and `docs/agents/` so the engineering skills know this repo's issue tracker (GitHub or local markdown), triage label vocabulary, and domain…
setup-pre-commit
Matt PocockSet up Husky pre-commit hooks with lint-staged (Prettier), type checking, and tests in the current repo. Use when user wants to add pre-commit hooks, set up Husky, configure lint-staged, or add…
tdd
Matt PocockTest-driven development with red-green-refactor loop. Use when user wants to build features or fix bugs using TDD, mentions "red-green-refactor", wants integration tests, or asks for test-first…
teach
Matt PocockTeach the user a new skill or concept, within this workspace.
to-issues
Matt PocockBreak a plan, spec, or PRD into independently-grabbable issues on the project issue tracker using tracer-bullet vertical slices. Use when user wants to convert a plan into issues, create…
to-prd
Matt PocockTurn the current conversation context into a PRD and publish it to the project issue tracker. Use when user wants to create a PRD from the current context.
triage
Matt PocockTriage issues through a state machine driven by triage roles. Use when user wants to create an issue, triage issues, review incoming bugs or feature requests, prepare issues for an AFK agent, or…
ubiquitous-language
Matt PocockExtract a DDD-style ubiquitous language glossary from the current conversation, flagging ambiguities and proposing canonical terms. Saves to UBIQUITOUS_LANGUAGE.md. Use when user wants to define…
write-a-skill
Matt PocockCreate new agent skills with proper structure, progressive disclosure, and bundled resources. Use when user wants to create, write, or build a new skill.
writing-beats
Matt PocockShape an article as a journey of beats, choose-your-own-adventure style. The user picks a starting beat from the raw material, you write only that beat, then offer options for where to pivot next,…
writing-fragments
Matt PocockGrilling session that mines the user for fragments — heterogeneous nuggets of writing (claims, vignettes, sharp sentences, half-thoughts) — and appends them to a single document as raw material for…
writing-shape
Matt PocockTake a markdown file of raw material and shape it into an article through a conversational session — drafting candidate openings, growing the piece paragraph by paragraph, arguing about format…
zoom-out
Matt PocockTell the agent to zoom out and give broader context or a higher-level perspective. Use when you're unfamiliar with a section of code or need to understand how it fits into the bigger picture.
api-and-interface-design
Addy OsmaniGuides stable API and interface design. Use when designing APIs, module boundaries, or any public interface. Use when creating REST or GraphQL endpoints, defining type contracts between modules, or…
browser-testing-with-devtools
Addy OsmaniTests in real browsers via Chrome DevTools MCP. Use when building or debugging anything that runs in a browser. Use when you need to inspect the DOM, capture console errors, analyze network…
ci-cd-and-automation
Addy OsmaniAutomates CI/CD pipeline setup. Use when setting up or modifying build and deployment pipelines. Use when you need to automate quality gates, configure test runners in CI, or establish deployment…
code-review-and-quality
Addy OsmaniConducts multi-axis code review. Use before merging any change. Use when reviewing code written by yourself, another agent, or a human. Use when you need to assess code quality across multiple…
code-simplification
Addy OsmaniSimplifies code for clarity. Use when refactoring code for clarity without changing behavior. Use when code works but is harder to read, maintain, or extend than it should be. Use when reviewing…
context-engineering
Addy OsmaniOptimizes agent context setup. Use when starting a new session, when agent output quality degrades, when switching between tasks, or when you need to configure rules files and context for a project.
debugging-and-error-recovery
Addy OsmaniGuides systematic root-cause debugging. Use when tests fail, builds break, behavior doesn't match expectations, or you encounter any unexpected error. Use when you need a systematic approach to…
deprecation-and-migration
Addy OsmaniManages deprecation and migration. Use when removing old systems, APIs, or features. Use when migrating users from one implementation to another. Use when deciding whether to maintain or sunset…
documentation-and-adrs
Addy OsmaniRecords decisions and documentation. Use when making architectural decisions, changing public APIs, shipping features, or when you need to record context that future engineers and agents will need…
doubt-driven-development
Addy OsmaniSubjects every non-trivial decision to a fresh-context adversarial review before it stands. Use when correctness matters more than speed, when working in unfamiliar code, when stakes are high…
frontend-ui-engineering
Addy OsmaniBuilds production-quality UIs. Use when building or modifying user-facing interfaces. Use when creating components, implementing layouts, managing state, or when the output needs to look and feel…
git-workflow-and-versioning
Addy OsmaniStructures git workflow practices. Use when making any code change. Use when committing, branching, resolving conflicts, or when you need to organize work across multiple parallel streams.
idea-refine
Addy OsmaniRefines raw ideas into sharp, actionable concepts through structured divergent and convergent thinking. Use when an idea is still vague, when you need to stress-test assumptions before committing to…
incremental-implementation
Addy OsmaniDelivers changes incrementally. Use when implementing any feature or change that touches more than one file. Use when you're about to write a large amount of code at once, or when a task feels too…
interview-me
Addy OsmaniExtracts what the user actually wants instead of what they think they should want. Achieves this through one-question-at-a-time interview until ~95% confidence about the underlying intent. Use when…
performance-optimization
Addy OsmaniOptimizes application performance. Use when performance requirements exist, when you suspect performance regressions, or when Core Web Vitals or load times need improvement. Use when profiling…
planning-and-task-breakdown
Addy OsmaniBreaks work into ordered tasks. Use when you have a spec or clear requirements and need to break work into implementable tasks. Use when a task feels too large to start, when you need to estimate…
security-and-hardening
Addy OsmaniHardens code against vulnerabilities. Use when handling user input, authentication, data storage, or external integrations. Use when building any feature that accepts untrusted data, manages user…
shipping-and-launch
Addy OsmaniPrepares production launches. Use when preparing to deploy to production. Use when you need a pre-launch checklist, when setting up monitoring, when planning a staged rollout, or when you need a…
source-driven-development
Addy OsmaniGrounds every implementation decision in official documentation. Use when you want authoritative, source-cited code free from outdated patterns. Use when building with any framework or library where…
spec-driven-development
Addy OsmaniCreates specs before coding. Use when starting a new project, feature, or significant change and no specification exists yet. Use when requirements are unclear, ambiguous, or only exist as a vague…
test-driven-development
Addy OsmaniDrives development with tests. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove that code works, when a bug report arrives, or when you're about…
using-agent-skills
Addy OsmaniDiscovers and invokes agent skills. Use when starting a session or when you need to discover which skill applies to the current task. This is the meta-skill that governs how all other skills are…
brainstorming
SuperpowersYou MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
dispatching-parallel-agents
SuperpowersUse when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies
executing-plans
SuperpowersUse when you have a written implementation plan to execute in a separate session with review checkpoints
finishing-a-development-branch
SuperpowersUse when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup
receiving-code-review
SuperpowersUse when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires technical rigor and verification, not…
requesting-code-review
SuperpowersUse when completing tasks, implementing major features, or before merging to verify work meets requirements
subagent-driven-development
SuperpowersUse when executing implementation plans with independent tasks in the current session
systematic-debugging
SuperpowersUse when encountering any bug, test failure, or unexpected behavior, before proposing fixes
test-driven-development
SuperpowersUse when implementing any feature or bugfix, before writing implementation code
using-git-worktrees
SuperpowersUse when starting feature work that needs isolation from current workspace or before executing implementation plans - ensures an isolated workspace exists via native tools or git worktree fallback
using-superpowers
SuperpowersUse when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions
verification-before-completion
SuperpowersUse when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output before making any success claims;…
writing-plans
SuperpowersUse when you have a spec or requirements for a multi-step task, before touching code
writing-skills
SuperpowersUse when creating new skills, editing existing skills, or verifying skills work before deployment
What is a skill?
A skill is a focused capability you can install into your AI coding agent. It is essentially a directory containing a SKILL.md file with a name, description, and instructions — the agent loads them on demand when the trigger conditions match.
The community is still settling on a standard. The SKILL.md format pioneered by Anthropic is rapidly becoming the lingua franca, and tools like skills.sh now provide one-command installation across agents.
How this directory works
We track 5 curated publisher repositories on GitHub and refresh every 24 hours. Each skill links to its SKILL.md on GitHub and shows the install command. Click any card to read the full skill body.
Publishers
- Anthropic — anthropics/skills · Official skills from Anthropic — the team behind Claude. PDFs, slides, Claude API patterns, and more.
- Vercel — vercel-labs/agent-skills · Skills from Vercel for Next.js, React, deployment, and AI SDK patterns. Production-ready guidance.
- Matt Pocock — mattpocock/skills · Matt Pocock's personal Claude Code skills — TypeScript-heavy, opinionated patterns from his .claude directory.
- Addy Osmani — addyosmani/agent-skills · Production-grade engineering skills for AI coding agents by Addy Osmani (Google Chrome).
- Superpowers — obra/superpowers · An agentic skills framework and software development methodology. Community-built collection.
Pair this with
- AI Prompts — system prompts and personas to extend agent behaviour without writing a skill.
- MCP Server Directory — the tool layer that skills can call.
- Developer Cheatsheets — the manual reference you can give your agent alongside a skill.
- Free Developer Resources — free-tier services these skills typically wrap.
- Trending GitHub Repositories — track the rise of new skill repos.