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Claude Skills

The open format is called Agent Skills and works in Claude Code, Codex, Cursor and other agents — most people know it as Claude Skills.

Every Agent Skill we could find on GitHub, deduplicated by content. 86 961 files from 2 125 authors, of which 68 678 are unique — the rest is the same skill repackaged into someone else's repository. For each one: what it weighs in tokens, whether it ships runnable scripts, and which MCP servers it needs.

68 678
unique skills
out of 86 961 files found on GitHub
18 283
are copies
same content, someone else's repository
1 749
tokens, median
what a typical skill costs you in context
8 467
name collisions
two skills with one name cannot sit side by side

8 221–8 280 of 68 678

page 138 of 1 145
Web Animation Design
by vercel-labs
vendor

Design and implement web animations that feel natural and purposeful. Use this skill proactively whenever the user asks questions about animations, motion, easing, timing, duration, springs, transitions, or animation performance. This includes questions about how to animate specific UI elements, which easing to use, animation best practices, or accessibility considerations for motion. Triggers on: easing, ease-out, ease-in, ease-in-out, cubic-bezier, bounce, spring physics, keyframes, transform, opacity, fade, slide, scale, hover effects, microinteractions, Framer Motion, React Spring, GSAP, CSS transitions, entrance/exit animations, page transitions, stagger, will-change, GPU acceleration, prefers-reduced-motion, modal/dropdown/tooltip/popover/drawer animations, gesture animations, drag interactions, button press feel, feels janky, make it smooth.

2.7k tokens
Dali Dynamic Mode
by NVIDIA
vendor

DALI imperative dynamic mode (`nvidia.dali.experimental.dynamic`, ndd): use when working on ndd code or migrating pipelines; skip pipeline-only tasks.

3.7k tokens scripts
Antfu Design
by antfu

antfu-style design conventions, broadened. UnoCSS-first, class-based semantic tokens with dual light/dark for tooling and devtools UIs, plus design-read, anti-slop, and micro-interaction polish for landing pages and product surfaces. Use when building or refactoring any interface with UnoCSS.

1.3k tokens
Antfu
by antfu

Anthony Fu's opinionated tooling and conventions for JavaScript/TypeScript projects. Use when setting up new projects, configuring ESLint/Prettier alternatives, monorepos, library publishing, or when the user mentions Anthony Fu's preferences.

1.3k tokens
Nitro
by antfu

Nitro is the framework-agnostic server toolkit (powering Nuxt) for building and deploying web servers anywhere. Use when working with nitro.config, server routes/event handlers, route rules, caching, storage, tasks, websockets, or deploying to Node/Bun/Deno/Cloudflare/Vercel.

880 tokens
Nuxt
by antfu

Nuxt full-stack Vue framework with SSR, auto-imports, and file-based routing. Use when working with Nuxt apps, server routes, useFetch, middleware, or hybrid rendering.

977 tokens
Pnpm
by antfu

Node.js package manager with strict dependency resolution. Use when running pnpm specific commands, configuring workspaces via pnpm-workspace.yaml, or managing dependencies with catalogs, patches, overrides, config dependencies, or the global virtual store.

1k tokens
Slidev
by antfu

Create and present web-based slidedecks for developers using Slidev with Markdown, Vue components, code highlighting, animations, and interactive features. Use when building technical presentations, conference talks, code walkthroughs, teaching materials, or developer decks.

2.2k tokens
Tsdown
by antfu

Bundle TypeScript and JavaScript libraries with blazing-fast speed powered by Rolldown. Use when building libraries, generating type declarations, bundling for multiple formats, or migrating from tsup.

3.2k tokens
Turborepo
by antfu

| dependsOn, caching, remote cache, the "turbo" CLI, --filter, --affected, CI optimization, environment variables, internal packages, monorepo structure/best practices, and boundaries. monorepo, shares code between apps, runs changed/affected packages, debugs cache, or has apps/packages directories.

7.1k tokens
Vitest
by antfu

Vitest fast unit testing framework powered by Vite with Jest-compatible API. Use when writing tests, mocking, configuring coverage, or working with test filtering and fixtures.

928 tokens
Vue Best Practices
by antfu

MUST be used for Vue.js tasks. Strongly recommends Composition API with `<script setup>` and TypeScript as the standard approach. Covers Vue 3, SSR, Volar, vue-tsc. Load for any Vue, .vue files, Vue Router, Pinia, or Vite with Vue work. ALWAYS use Composition API unless the project explicitly requires Options API.

2.2k tokens
Vueuse Functions
by antfu

Apply VueUse composables where appropriate to build concise, maintainable Vue.js / Nuxt features.

9.3k tokens
AGT policy authoring skill
by microsoft
vendor

Create and validate a minimal AGT Copilot CLI policy tailored to the repository being inspected.

1.5k tokens
Numerics Debugging
by pytorch
vendor

Capture and compare per-op activations between two TorchTitan runs to spot numerics divergence (eager vs aot_fx_trace, FSDP vs no-FSDP, before vs after a refactor). Use when the user wants to debug bitwise / numeric drift in training, or invokes /numerics_debugging.

782 tokens
Torch Bisect
by pytorch
vendor

Bisect PyTorch commits to find the regression that breaks TorchTitan. Use when the user wants to bisect PyTorch or invokes /torch_bisect.

1.1k tokens
Add Moe Model
by pytorch
vendor

Add a new HF MoE model to the transformers_modeling_backend experiment. Use when the user provides a HuggingFace model ID and wants to integrate it with Titan's MoE, or invokes /add_moe_model.

7.6k tokens scripts
Inference Perf Hillclimb
by pytorch
vendor

Profiler-driven hill-climbing to close the inference throughput gap between TorchTitan's unified model (running inside vLLM) and vLLM's native model. Benchmark with generate.py --benchmark, climb optimization rungs (compile / cudagraph / fused kernels), profile torchtitan vs the native target, then patch the single biggest gap at a time and re-measure. Use when the user wants to benchmark or optimize RL inference generation speed, reproduce previous hill climbing study, or invokes /inference_perf_hillclimb.

3.2k tokens
Create API Review
by Azure

Create an API review PR for an Azure SDK package using API Review Hub. **UTILITY SKILL**. USE FOR: "create API review", "open API review", "compare package versions", "APIView PR". DO NOT USE FOR: fixing APIView comments, SDK code generation, pipeline debugging. INVOKES: azure-sdk-mcp:azsdk_apireviewhub_request_review_pr.

1.2k tokens
Fix Black
by Azure

Automatically fix black code formatting issues in any Azure SDK for Python package

142 tokens
Fix Sphinx
by Azure

Automatically fix Sphinx documentation issues in any Azure SDK for Python package following Azure SDK Python documentation standards.

1.9k tokens
Fix Mypy
by Azure

Automatically fix mypy type checking issues in any Azure SDK for Python package following Azure SDK Python patterns.

1.8k tokens
Emitter Package Update
by Azure

Automate updating the emitter package dependencies in eng/emitter-package.json for the Azure SDK for Python repository, then open a PR. Use this skill when the user wants to update @azure-tools/typespec-python (or any other dependency in emitter-package.json) to the latest version, create a PR for an emitter-package version bump, or manage emitter-package.json updates.

2.1k tokens
Fix Pylint
by Azure

Automatically fix pylint issues in any Azure SDK for Python package following Azure SDK Python guidelines and existing code patterns.

1.8k tokens
Next Version Update
by Azure

Automate promoting next-* tool versions (pylint, mypy, pyright) to become the current pinned versions in azure-sdk-for-python. Use this skill when the weekly next-* CI checks are passing and you want to update the pinned tool versions for all packages.

3.5k tokens
Generate API Markdown
by Azure

Generate an API markdown file and token file using ApiView. Use this when the user wants to generate an API markdown file and review API changes.

204 tokens
Do Code Review
by Azure

Reviews code changes in azure-ai-ml package for quality, Azure SDK compliance, and best practices. Use when reviewing code, checking pull requests, or when user asks to review changes or check code quality in azure-ai-ml.

2.6k tokens
Fix Pylint
by Azure

Automatically fix pylint issues in azure-ai-ml package following Azure SDK Python guidelines and existing code patterns. Expects GitHub issue URL and optional virtual env path in the request. Format "fix pylint issue <issue-url> [using venv <path>]

2k tokens
Azure AI Projects Emit From Typespec
by Azure

Emit the azure-ai-projects Python SDK from TypeSpec, apply post-emitter fixes, and create a Pull Request. WHEN: \"emit SDK from TypeSpec\", \"generate azure-ai-projects SDK\", \"update azure-ai-projects from TypeSpec\", \"emit from TypeSpec\", \"regenerate azure-ai-projects\". DO NOT USE FOR: other Azure SDK packages, manual code edits without TypeSpec. INVOKES: PostEmitter.ps1 script, git commands, gh CLI for PR creation.

3.5k tokens
Cu SDK Author Analyzer Classify Route
by Azure

Create and test a classify-and-route Azure AI Content Understanding pipeline for packets that contain multiple document types (e.g. invoice + bank statement + loan application in one PDF). Walks per-type schema authoring → outer classifier wiring → batch test → category-aware stdout summary using the typed ContentUnderstandingClient. Use when the user has mixed-document packets.

5.7k tokens scripts
Azure AI Projects Update Changelog
by Azure

Update CHANGELOG.md by comparing public APIs between the current branch and the latest released version on PyPI. WHEN: \"update changelog\", \"generate changelog\", \"add changelog entry\", \"what changed in this version\". DO NOT USE FOR: other Azure SDK packages. INVOKES: PyPI API, GitHub API (for tags), file operations.

4.4k tokens
Fix Mypy
by Azure

Automatically fix mypy type checking issues in azure-ai-ml package following Azure SDK Python patterns. Expects GitHub issue URL and optional virtual env path in the request. Format "fix mypy issue <issue-url> [using venv <path>]

2.4k tokens
Cu SDK Author Analyzer
by Azure

Iteratively author and test a custom Azure AI Content Understanding analyzer for a folder of **document** files (PDFs, page images) of a single type. Walks layout extraction → schema authoring → validation → batch test → agent review → refine cycle using the typed ContentUnderstandingClient. Document modality only — audio, video, and image analyzers are planned for a later update. Use when the user wants to author a custom analyzer for invoices, contracts, forms, or any other single-type document set.

4.4k tokens scripts
Google Agents CLI Workflow
by google
vendor

> This skill should be used when the user wants to "develop an agent", "build an agent using ADK", "run the agent locally", "debug agent code", "test an agent", "deploy an agent", "publish an agent", "monitor an agent", or needs the ADK (Agent Development Kit) development lifecycle and coding guidelines. Entrypoint for building ADK agents. Always active — provides the full workflow (scaffold, build, evaluate, deploy, publish, observe), code preservation rules, model selection guidance, and troubleshooting steps for ADK or any agent development.

4.7k tokens
Google Agents CLI Adk Code
by google
vendor

> This skill should be used when the user wants to "write agent code", "build an agent with ADK", "add a tool", "create a callback", "define an agent", "use state management", or needs ADK (Agent Development Kit) Python API patterns and code examples. Part of the Google ADK skills suite. It provides a quick reference for agent types, tool definitions, orchestration patterns, callbacks, and state management. Do NOT use for creating new projects (use google-agents-cli-scaffold) or deployment (use google-agents-cli-deploy).

784 tokens
Google Agents CLI Deploy
by google
vendor

> This skill should be used when the user wants to "deploy an agent", "deploy my ADK agent", "set up CI/CD", "configure secrets", "troubleshoot a deployment", or needs guidance on Agent Runtime, Cloud Run, or GKE deployment targets, or awareness of Agent Gateway. Covers deployment workflows, service accounts, rollback, and production infrastructure. Part of the Google ADK (Agent Development Kit) skills suite. Do NOT use for API code patterns (use google-agents-cli-adk-code), evaluation (use google-agents-cli-eval), or project scaffolding (use google-agents-cli-scaffold).

6.5k tokens
Google Agents CLI Eval
by google
vendor

> This skill should be used when the user wants to "run an evaluation", "evaluate my ADK agent", "write an eval dataset", "analyze eval failures", "compare eval results", "optimize agent", or needs guidance on the Agent Platform eval methodology and the Quality Flywheel. Covers eval metrics, dataset schema, LLM-as-judge scoring, and common failure causes. Do NOT use for API code patterns (use google-agents-cli-adk-code), deployment (use google-agents-cli-deploy), or project scaffolding (use google-agents-cli-scaffold).

6.4k tokens
Google Agents CLI Scaffold
by google
vendor

> This skill should be used when the user wants to "create an agent project", "start a new ADK project", "build me a new agent", "add CI/CD to my project", "add deployment", "enhance my project", or "upgrade my project". Part of the Google ADK (Agent Development Kit) skills suite. Covers `agents-cli scaffold create`, `scaffold enhance`, and `scaffold upgrade` commands, template options, deployment targets, and the prototype-first workflow. Do NOT use for writing agent code (use google-agents-cli-adk-code) or deployment operations (use google-agents-cli-deploy).

2.8k tokens
Google Agents CLI Publish
by google
vendor

> This skill should be used when the user wants to "publish an agent", "publish my ADK agent", "register an agent with Gemini Enterprise", "publish to Gemini Enterprise", or needs guidance on the agents-cli publish gemini-enterprise command. Also use when the user wants to "manage agents in Agent Registry" or "list/update/delete registered agents". Covers ADK vs A2A registration modes, programmatic and interactive usage, flag reference, auto-detection from deployment metadata, Agent Registry fleet management, and troubleshooting. Part of the Google ADK (Agent Development Kit) skills suite. Do NOT use for deployment (use google-agents-cli-deploy).

2.6k tokens
Google Agents CLI Observability
by google
vendor

> This skill should be used when the user wants to "set up tracing", "monitor my ADK agent", "configure logging", "add observability", "debug production traffic", or needs guidance on monitoring deployed ADK (Agent Development Kit) agents. Covers Cloud Trace, prompt-response logging, BigQuery Agent Analytics, third-party integrations (AgentOps, Phoenix, MLflow, etc.), and troubleshooting. Part of the Google ADK (Agent Development Kit) skills suite. Do NOT use for deployment setup (use google-agents-cli-deploy) or API code patterns (use google-agents-cli-adk-code).

2.7k tokens
Streamdown
by vercel
vendor

>- Implement, configure, and customize Streamdown — a streaming-optimized React Markdown renderer with syntax highlighting, Mermaid diagrams, math rendering, and CJK support. Use when working with Streamdown setup, configuration, plugins, styling, security, or integration with AI (2) Configuring plugins (code, mermaid, math, cjk), (3) Styling or theming Streamdown output, (4) Integrating with AI chat/streaming, (5) Configuring security, link safety, or custom HTML tags, (6) Using carets, static mode, or custom components, (7) Troubleshooting Tailwind, Shiki, or Vite issues.

1.7k tokens
Google Maps Scraper
by gosom

> Find businesses, leads, emails, reviews, ratings, and contact details from Google Maps. Use for requests such as "find dentists in Berlin", "scrape Google Maps", "get local business leads", or "collect Google Maps reviews". Runs the open-source scraper locally with Docker and guides nontechnical users through setup, monitoring, and results.

1.8k tokens scripts
Code Review
by cloudflare
vendor

Review code changes for correctness, clarity, and risk. Use when the user asks for a review, a second opinion on a diff, or feedback on code they wrote.

153 tokens
Open Pr
by cloudflare
vendor

Take a cloudflare/agents GitHub issue plus any repro findings and one-shot a fix PR — branch, change, test, push, and open the PR linked to the issue.

2k tokens
Reproduce
by cloudflare
vendor

Reproduce a cloudflare/agents GitHub issue by scaffolding a minimal Agents/Worker project and deploying it to a temporary Cloudflare account, then report findings back on the issue.

3.6k tokens
Escalation
by cloudflare
vendor

Decide when and how to escalate a customer conversation to a human agent. Use when a request is high-risk, the customer is frustrated, or the issue is outside what you can resolve.

203 tokens
Jira Driven Planning
by breaking-brake

Jiraチケットの要件とConfluenceの関連ドキュメントを基に、Frontend/Backend/Infrastructureに分割した実装計画を策定するプランニングスキル。Jiraチケット情報とConfluence検索結果が前段で取得済みであることを前提とし、構造化された実装計画を出力する。「プランニング」「実装計画策定」「タスク分割」などの文脈で使用。

413 tokens zh
Next Idea
by breaking-brake

Run one unattended IDEATION iteration of the autonomous value-creation loop — invent improvements a user of cc-wf-studio would notice, judge them against the value bar, and file the winners as locked `idea` issues. Never implements anything; the next-task skill builds from the queue this skill fills. Use when the user says "アイデア出して", "next idea", or wants proposals without implementation.

1k tokens
Next QA Idea
by breaking-brake

Run one unattended IDEATION iteration of the quality-assurance loop — find the highest-value untested behavior in the codebase, judge it against the QA value bar, and file ONE locked `qa` issue specifying the test to write. Never writes code or tests; the next-qa skill builds from the queue this skill fills. Use when the user says "QAアイデア", "next qa idea", or wants the QA backlog refilled without implementation.

1.7k tokens
Next QA
by breaking-brake

Run one unattended iteration of the QUALITY-ASSURANCE loop — steward any in-flight QA PR, then build ONE queued `qa` issue (test infrastructure, unit tests, regression tests for known bugs) on a branch off auto-qa and open a PR that squash-merges on green CI. Adds tests and tooling only; never edits product source. Use when the user says "QAタスク", "next qa", "テストを進めて", or wants autonomous progress on the quality track.

2.5k tokens
Next Task
by breaking-brake

Run one unattended IMPLEMENTATION iteration of the autonomous value-creation loop — steward any in-flight PR, fix interrupts (red CI / security / human bugs), or else build ONE queued `idea` issue on a branch off auto-dev and open a PR that squash-merges on green CI. Ideation lives in the next-idea skill; this skill consumes its queue. Use when the user says "次のタスク", "next task", "続きをやって", or wants autonomous progress without specifying what to do.

2.1k tokens
Pr Review Analysis
by breaking-brake

Analyze PR review comments from a GitHub PR URL. Fetch review comments, verify each finding against the actual codebase, assess validity (correct/incorrect/partial), present a structured summary with recommended actions, and optionally reply to each comment on GitHub. Use when given a PR review URL or when asked to check/analyze PR feedback.

1k tokens zh
Pr To Main Cleanup
by breaking-brake

Clean up merged feature branches after PR to main is merged. Use when the user says "ブランチ削除", "cleanup", "マージ後の片付け", or wants to delete a merged branch.

238 tokens
Pr To Main
by breaking-brake

Create a PR to the main branch for feature/fix changes in this pnpm + Changesets monorepo. Use when the user says "PRを作成", "mainにPR", or wants to submit changes for review. Always run this in the monorepo-aware way — identify the affected package(s) and make sure a changeset exists, because the release pipeline is Changesets-driven.

1.4k tokens
Workflow Schema Tuning
by breaking-brake

Use when modifying `resources/workflow-schema.json` in cc-wf-studio to influence how AI agents generate workflows via the cc-workflow-ai-editor skill. Triggers include "AIが特定のノードタイプを選んでくれない", "ワークフロー生成のバイアスを調整したい", "スキーマの description を変えたい", "新しいノードタイプを追加したい", "嘘の制約がスキーマに混じっていないか確認したい". Covers what the schema actually does (instructions to AI, not runtime constraints), the design philosophy (align direction, do not prescribe rules), the build pipeline (.json → .toon auto-generated), and known bias sources to audit.

1.4k tokens
Cc Workflow AI Editor
by breaking-brake

AI workflow editor for CC Workflow Studio. Create and edit visual AI agent workflows through interactive conversation using MCP tools (get_workflow_schema, get_current_workflow, apply_workflow, update_nodes). Use when the user wants to create a new workflow, modify an existing workflow, or edit the workflow canvas in CC Workflow Studio via the built-in MCP server.

560 tokens
Ccwf CLI
by breaking-brake

Use the `ccwf` CLI (from @cc-wf-studio/cli) to render, validate, preview, export, or run cc-wf-studio workflow JSON files from the terminal. Apply whenever the user mentions viewing, visualizing, checking, executing, or converting a workflow under `.vscode/workflows/` (or any `*workflow*.json`), wants a Mermaid diagram of a workflow, asks to "see" / "preview" / "open" a workflow, or wants to run a workflow as a Claude Code Skill without opening VSCode.

3.3k tokens
Azldev Overlays
by microsoft
vendor

Read this before adding, changing, or diagnosing any overlay; never edit a spec or rendered file from memory. Explains how to modify a component's RPM spec or loose source files with azldev overlays (semantic patches applied at render time) instead of forking the spec, covering overlay types, the render-and-inspect loop, common failures, pitfalls, and metadata. Triggers include overlay, overlay failed, no match, spec-add-tag, spec-remove-tag, patch-add, fix spec, backport, disable test, prune subpackage, edit spec.

2.3k tokens
Azldev Add Component
by microsoft
vendor

Read this before adding or importing a component; follow the workflow instead of guessing. Explains how to add a new component to an azldev distro, covering inspecting the upstream spec, the inline-versus-dedicated-file decision, and validating with render, diff-sources, and build. Triggers include add component, new package, import package, create comp.toml, new component.

998 tokens
Azldev Remove Component
by microsoft
vendor

Read this before deleting or dropping a component; there is no azldev remove command, so doing it wrong leaves dangling state. Explains the manual removal workflow for deleting component metadata, cleaning references, and validating any related output-affecting changes. Triggers include remove component, delete package, drop component, prune dependency.

867 tokens

Claude Skills — questions

Answers built from the skills we actually parsed.

What is a Claude Skill?
A folder with a SKILL.md file: instructions that teach an agent to do one thing well, optionally with scripts and reference files alongside. The format is open and called Agent Skills — Claude Code, Codex and other agents read the same files. It is not a program you run; it is knowledge the agent loads when the task calls for it.
How is a skill different from an MCP server?
A server gives the agent new abilities — it connects to something and exposes tools. A skill gives the agent knowledge: how to use what it already has. They combine, and often literally: 13 478 of the skills here declare which MCP servers they need to work.
Why are there fewer skills here than in other catalogues?
Because we deduplicate by content. Of 86 961 files found on GitHub, 68 678 are unique — the rest is the same skill copied into someone else's repository, word for word. Catalogues that count files rather than skills show every copy as a separate entry.
What does the token count mean?
A skill is loaded in stages. Its name and description stay in the model's context all the time; the body of SKILL.md is read when the skill is used; other files in the folder, such as references, scripts and fonts, are opened only when the skill asks for them. The number we show is SKILL.md, the part every use pays for. A big folder is not a big cost: one official skill ships 83 font files, and none of them ever enters the context.
How do I install a skill?
Copy the skill folder into ~/.claude/skills for personal use, or into .claude/skills inside a project. The agent picks it up by the name in the SKILL.md header — which is worth checking: 8 467 skills here share a name with another skill, and two of them cannot sit side by side.