CookiesForAI

Agent skills, checked

91 agent skills from 30 publishers. An agent skill is a folder of instructions, and sometimes scripts, that a coding agent loads when a task needs it. The open skills CLI installs a skill into 78 agents, from Claude Code and Codex to Cursor and Gemini CLI. Every page here shows the skill's license, the install command and the date we checked it (last check October 2, 2026).

Browse by publisher (30)

Anthropic, Anton Babenko, bradautomates, Cloudflare, Corey Haines, Expo, Firebase (Google), Firecrawl, Sentry, Google Workspace, HashiCorp, HeyGen, Hugging Face, Steph Ango, Leon Lin, Matt Pocock, Microsoft, Neon, Next Level Builder, Jesse Vincent, OpenAI, Paul Bakaus, Prisma, Remotion, shadcn/ui, Stripe, Supabase, Trail of Bits, Vercel, Seth Hobson

Infrastructure as code

  • refactor-module is HashiCorp's agent skill for turning a monolithic Terraform configuration into reusable modules, with typed interfaces, documentation, tests and a state migration that recreates no resources.
    OfficialMPL-2.0
  • terraform-policy is HashiCorp's agent skill for writing Terraform Policy files (.policy.hcl), testing them with .policytest.hcl, and converting Sentinel policies to the new format.
    OfficialMPL-2.0

  • Anton Babenko

    Terraform skill

    terraform-skill is Anton Babenko's agent skill for writing, testing and reviewing Terraform and OpenTofu, which names the risk before it writes code and never recommends a production apply without a reviewed plan.
    Apache-2.0
  • terraform-style-guide is HashiCorp's agent skill for writing and reviewing Terraform HCL to the official style conventions: file layout, formatting, naming, typed variables, version pinning and a review checklist.
    OfficialMPL-2.0
  • terraform-test is HashiCorp's agent skill for writing and running Terraform's built-in tests: .tftest.hcl files with run blocks, assertions, expected failures, mock providers and CI pipelines.
    OfficialMPL-2.0

Cloud and deployment

  • Microsoft

    Azure deploy

    azure-deploy is Microsoft's agent skill for deploying an already prepared and validated app to Azure with azd, Bicep or Terraform, with error recovery, role checks and verified https endpoints at the end.
    OfficialMIT
  • azure-diagnostics is Microsoft's agent skill for debugging Azure production problems with AppLens, Azure Monitor and resource health, with guides for App Service, Functions, Container Apps, AKS, VMs and messaging.
    OfficialMIT
  • Deploy to Vercel is Vercel's agent skill for getting a project live: the agent checks how your project is set up, picks a deploy method and returns a preview link unless you ask for production.
    OfficialMIT, stated only in the repository README (no license file)
  • Vercel CLI with Tokens is Vercel's agent skill for running the Vercel CLI with an access token instead of vercel login: deploys, environment variables, logs and domains.
    OfficialMIT, stated only in the repository README (no license file)
  • Vercel Optimize is Vercel's agent skill that audits a deployed project from its production metrics and returns ranked, verified fixes to cut cost and speed up slow routes.
    OfficialMIT, stated only in the repository README (no license file)
  • workers-best-practices is Cloudflare's agent skill for writing, reviewing and configuring production Cloudflare Workers, built around a table of anti-patterns to flag and current docs over memorized APIs.
    OfficialApache-2.0

  • Cloudflare

    Wrangler

    wrangler is Cloudflare's agent skill for running and troubleshooting the Wrangler CLI: configuring Worker projects, local development, Previews, secrets, deployments, rollbacks and Cloudflare resources such as KV, R2 and D1.
    OfficialApache-2.0

Databases

  • database-migration is an agent skill from Seth Hobson's wshobson/agents marketplace for writing schema and data migrations in Sequelize, TypeORM and Prisma, with zero-downtime patterns and rollback strategies.
    MIT
  • neon-postgres is Neon's agent skill for working with Postgres on Neon: connection strings, pooled or direct connections, migrations, branching, built-in diagnostics, autoscaling, scale to zero and search.
    OfficialApache-2.0
  • Postgres Best Practices is Supabase's agent skill of Postgres rules for any Postgres database, ranked by impact: indexes, connection pooling, row level security and schema design.
    OfficialMIT
  • prisma-upgrade-v7 is Prisma's agent skill for upgrading a project from Prisma ORM 6 to 7, covering every breaking change: the new generator, driver adapters, prisma.config.ts, ESM and removed features.
    OfficialMIT

  • Supabase

    Supabase

    Supabase is Supabase's own agent skill for any Supabase task, with a security checklist for auth and row level security and a rule to check the current docs first.
    OfficialMIT

Security

  • Trail of Bits

    Differential review

    differential-review is Trail of Bits' agent skill for security review of a pull request, commit or diff, using git history, blast radius counts and test coverage, and ending in a written markdown report.
    OfficialCC-BY-SA-4.0
  • firebase-security-rules-auditor is the Firebase team's agent skill for auditing Firestore and Cloud Storage security rules for privilege escalation, update bypasses and missing limits, returning a 1 to 5 score in JSON.
    OfficialApache-2.0
  • gha-security-review is Sentry's agent skill for auditing GitHub Actions workflows for attacks an outsider can run, such as pwn requests, expression injection and credential theft, with a concrete exploit for each finding.
    OfficialApache-2.0
  • security-review is Sentry's agent skill for reviewing code for exploitable vulnerabilities, such as injection, XSS, broken access control and weak crypto, reporting only findings it has confirmed with high confidence.
    OfficialCC-BY-SA-4.0
  • semgrep-rule-creator is Trail of Bits' agent skill for writing custom Semgrep rules that detect vulnerabilities and bug patterns, test-first, with taint mode preferred and every test required to pass.
    OfficialCC-BY-SA-4.0
  • supply-chain-risk-auditor is Trail of Bits' agent skill for auditing a project's npm, PyPI and Go dependencies for known advisories, abandoned upstreams, publisher concentration and install scripts, measured by bundled scripts.
    OfficialCC-BY-SA-4.0

Testing and debugging

  • Trail of Bits

    Mutation testing

    mutation-testing is Trail of Bits' agent skill for configuring mutation testing campaigns with its mewt or muton tools, reading surviving mutants, telling equivalent mutants from real test gaps, and hunting bugs they expose.
    OfficialCC-BY-SA-4.0

  • Microsoft (Playwright team)

    Playwright CLI

    playwright-cli is Microsoft's agent skill for driving a real browser from the terminal: open pages, click and fill by element reference, take snapshots and screenshots, mock requests and generate Playwright tests.
    OfficialApache-2.0
  • Systematic Debugging is an agent skill from Superpowers that makes your agent find the root cause of a bug or failing test before it proposes any fix, instead of guessing.
    MIT

  • Matt Pocock

    TDD

    tdd is Matt Pocock's agent skill for test-driven development: the agent agrees which public interfaces to test with you, then works one failing test and one minimal fix at a time.
    MIT
  • Test-Driven Development is an agent skill from Superpowers: your agent writes a failing test first, watches it fail, then writes only the code needed to make it pass.
    MIT
  • Verification Before Completion is an agent skill from Superpowers: your agent runs the command that proves a claim and reads the output before it says work is done, fixed or passing.
    MIT
  • Webapp Testing is Anthropic's open-source agent skill for testing local web apps: the agent writes Python Playwright scripts that click through your app, take screenshots and read console logs.
    OfficialApache-2.0

Code review and Git

  • code-review is Sentry's agent skill for reviewing pull requests by Sentry's engineering practices: runtime errors, performance, side effects, compatibility, security, design, tests and the tone of feedback.
    OfficialApache-2.0
  • Finishing a Development Branch is an agent skill from Superpowers: when work is done, your agent runs the tests, offers to merge, open a pull request or keep the branch, then cleans up.
    MIT
  • gh-address-comments is OpenAI's agent skill for pull request review feedback: the agent fetches every comment and review thread on the open PR, numbers them, and fixes only the ones you pick.
    OfficialApache-2.0
  • gh-fix-ci is OpenAI's agent skill for failing pull request checks: the agent uses the GitHub CLI to find failing GitHub Actions runs, pulls the logs, summarizes the failure and proposes a fix plan.
    OfficialApache-2.0
  • iterate-pr is Sentry's agent skill that keeps working on a GitHub pull request until CI passes and high and medium priority review comments are fixed, using bundled scripts and the gh CLI.
    OfficialApache-2.0
  • Receiving Code Review is an agent skill from Superpowers: your agent checks review feedback against the code before acting, pushes back with reasons when it is wrong, and skips the flattery.
    MIT
  • Requesting Code Review is an agent skill from Superpowers: your agent sends its changes to a separate reviewer subagent that checks them against the plan and grades each issue by severity.
    MIT

  • Jesse Vincent

    Using Git Worktrees

    Using Git Worktrees is an agent skill from Superpowers: before feature work, your agent makes sure it is in an isolated git worktree, sets up the project and checks that the tests pass.
    MIT

Frontend and design

  • Brand Guidelines is Anthropic's open-source agent skill that holds Anthropic's own brand colors and fonts, so an agent can give a document, slide deck or web artifact the Anthropic look.
    OfficialApache-2.0
  • design-taste-frontend, the main skill in Leon Lin's Taste Skill repository, makes an AI agent read the brief, pick a design direction and build landing pages, portfolios and redesigns that avoid templated defaults.
    MIT
  • Frontend Design is Anthropic's open-source agent skill that steers an AI agent toward a look made for your product and away from the templated pages AI tends to produce.
    OfficialApache-2.0

  • Paul Bakaus

    Impeccable

    Impeccable is Paul Bakaus's agent skill for frontend design: one skill with 24 commands such as audit, critique and polish, plus a launcher that runs deterministic checks for common AI design mistakes.
    Apache-2.0

  • shadcn/ui

    shadcn

    shadcn is the shadcn/ui project's own agent skill: it reads your components.json, then guides the agent to find, install, compose and style shadcn/ui components with the shadcn CLI and the project's rules.
    OfficialMIT

  • Anthropic

    Theme Factory

    Theme Factory is Anthropic's open-source agent skill with 10 ready color and font themes, plus custom ones on request, that an agent applies to slides, documents and web pages.
    OfficialApache-2.0

  • Next Level Builder

    UI UX Pro Max

    ui-ux-pro-max is an agent skill from Next Level Builder that gives an agent a searchable local library of UI styles, color palettes, font pairings and UX rules, and generates a design system per project.
    MIT
  • Web Artifacts Builder is Anthropic's agent skill for complex Claude.ai artifacts: the agent sets up a React, Tailwind and shadcn/ui project, then bundles it into one HTML file.
    OfficialApache-2.0
  • Web Design Guidelines is Vercel's agent skill for UI review: the agent checks your files against Vercel's Web Interface Guidelines and lists each issue by file and line.
    OfficialMIT, stated only in the repository README (no license file)

Coding and frameworks

  • Anthropic

    Claude API

    Claude API is Anthropic's open-source agent skill for code that calls Claude: current model IDs and prices, guides for seven SDK languages plus cURL, and guided migrations to newer models.
    OfficialApache-2.0
  • React Best Practices is Vercel Engineering's agent skill of 70 performance rules for React and Next.js, ranked by impact, which the agent applies when it writes or reviews code.
    OfficialMIT
  • React Composition Patterns is Vercel's agent skill for React component APIs: compound components, lifted state and explicit variants instead of a growing list of boolean props.
    OfficialMIT
  • React Native is Vercel's agent skill of React Native and Expo rules, ranked by impact: list performance, animations, native navigation and UI patterns for faster mobile apps.
    OfficialMIT
  • React View Transitions is Vercel's agent skill for animating route changes, shared elements and list reorders with React's ViewTransition component, in Next.js and other React apps.
    OfficialMIT
  • stripe-best-practices is Stripe's own agent skill for integration decisions: it steers the agent to the right Stripe API for payments, subscriptions, Connect, tax and security, using current API and SDK versions.
    OfficialMIT

Mobile

  • eas-app-stores is the Expo team's agent skill for shipping mobile apps with EAS: build profiles, signing, version numbers, TestFlight and submissions to the App Store and Google Play.
    OfficialMIT
  • expo-router is the Expo team's agent skill for navigation in Expo apps: file-based routes, native stacks and tabs, links with previews and context menus, modals, form sheets, headers and search bars.
    OfficialMIT

Video, images and media

  • Algorithmic Art is Anthropic's open-source agent skill for generative art: the agent writes a short art philosophy, then builds an interactive p5.js piece with seeds and parameter sliders.
    OfficialApache-2.0

  • Anthropic

    Canvas Design

    Canvas Design is Anthropic's open-source agent skill for static visual work: the agent writes a design philosophy, then makes a poster or art piece as a finished PNG or PDF file.
    OfficialApache-2.0
  • hyperframes is HeyGen's entry-point agent skill for HyperFrames, its open-source framework that renders HTML, CSS and animations into MP4 video; it captures your brief and routes to the right video workflow.
    OfficialApache-2.0
  • remotion-best-practices is Remotion's own agent skill and the entry point to its other video skills: it routes an agent to the right guide for creating, previewing, captioning and rendering Remotion videos in React.
    OfficialNo license file in the skills repo
  • Slack GIF Creator is Anthropic's open-source agent skill for animated GIFs sized for Slack: the agent draws the frames in Python, adds motion and checks the file meets Slack's limits.
    OfficialApache-2.0

  • bradautomates

    Watch

    Watch is an open-source agent skill that turns a video link or file into frames and a transcript, or hands it to Google's Gemini, so your agent can answer questions about it.
    MIT

Browser automation and web research

  • agent-browser is the agent skill for Vercel Labs' browser automation CLI: a native Rust tool that lets an agent open pages, read accessibility snapshots and click, fill and screenshot by element reference.
    OfficialApache-2.0

  • Firecrawl

    Firecrawl

    firecrawl is Firecrawl's agent skill for live web work through its CLI: the agent searches the web, scrapes pages to clean markdown, maps and crawls sites, and interacts with pages that need clicks or logins.
    OfficialISC (package.json only, no license file)

Documents and Office files

  • Anthropic

    DOCX

    DOCX is Anthropic's proprietary agent skill for creating, reading and editing Word files, including tracked changes, comments and tables of contents; its license limits it to Claude and Anthropic's own products.
    OfficialProprietary: use only within Anthropic's services, no copying or redistribution
  • obsidian-markdown is Steph Ango's agent skill for writing Obsidian Flavored Markdown: notes with properties, wikilinks, embeds, callouts and block references that render correctly in an Obsidian vault.
    MIT

  • Anthropic

    PDF

    PDF is Anthropic's proprietary agent skill for reading, creating and editing PDF files, from pulling out tables to filling forms and OCR; its license limits it to Claude and Anthropic's own products.
    OfficialProprietary: use only within Anthropic's services, no copying or redistribution
  • pdf is OpenAI's open-source agent skill for making and reviewing PDF files: the agent builds them with Python libraries, renders each page to an image and checks the layout before delivering.
    OfficialApache-2.0

  • Anthropic

    PPTX

    PPTX is Anthropic's proprietary agent skill for building PowerPoint decks from scratch or from your template and checking every slide for overflow; its license limits it to Claude and Anthropic's products.
    OfficialProprietary: use only within Anthropic's services, no copying or redistribution

  • Anthropic

    XLSX

    XLSX is Anthropic's proprietary agent skill for creating, editing and cleaning spreadsheets with live formulas checked for errors; its license limits it to Claude and Anthropic's own products.
    OfficialProprietary: use only within Anthropic's services, no copying or redistribution

Writing

  • Doc Co-Authoring is Anthropic's agent skill that takes you and an AI agent through a document in three stages: gather context, draft section by section, then test it on a fresh reader.
    OfficialNo license stated

  • Google Workspace

    Gmail (gws)

    gws-gmail is the Gmail agent skill in Google Workspace's gws CLI repository: it lets an agent send, read, reply to, forward and triage Gmail messages through the gws command line.
    OfficialApache-2.0
  • Internal Comms is Anthropic's open-source agent skill for writing inside a company: the agent drafts 3P updates, company newsletters, FAQs and other internal messages in set formats.
    OfficialApache-2.0
  • Writing Guidelines is Vercel's agent skill for docs review: the agent checks your pages against Vercel's Writing Guidelines and lists each style or tone issue by file and line.
    OfficialMIT, stated only in the repository README (no license file)

Marketing and SEO

  • Corey Haines

    AI SEO

    ai-seo is Corey Haines's agent skill for answer engine optimization: the agent audits whether AI assistants cite your site, then restructures content and site files so AI search can extract and cite it.
    MIT

  • Corey Haines

    Programmatic SEO

    programmatic-seo is Corey Haines's agent skill for building SEO pages at scale from templates and data, such as location, comparison or integration pages, without tripping search engine spam policies.
    MIT

  • Corey Haines

    SEO audit

    seo-audit is Corey Haines's agent skill for diagnosing why a site is not ranking: the agent checks crawling, indexing, speed, on-page elements and content quality, then writes a prioritized fix list.
    MIT

Planning and agent workflow

  • Jesse Vincent

    Brainstorming

    Brainstorming is an agent skill from Superpowers that makes your coding agent work out what you want and agree a design with you before it writes any code.
    MIT
  • Diagnosing Superpowers is an agent skill from Superpowers that reads a session's transcripts when work went wrong and reports what happened, with every finding tied to a file and line.
    MIT
  • Dispatching Parallel Agents is an agent skill from Superpowers: when several problems are independent, your agent sends a focused subagent to each at once, then checks the results together.
    MIT

  • Jesse Vincent

    Executing Plans

    Executing Plans is an agent skill from Superpowers in which your agent works through a written plan itself, task by task with tests, then gets one fresh review of the whole branch.
    MIT

  • Matt Pocock

    Grill me

    grill-me is Matt Pocock's agent skill that turns your agent into a relentless interviewer, asking numbered rounds of questions about a plan or design until every decision is settled.
    MIT
  • Subagent-Driven Development is an agent skill from Superpowers: your agent carries out a plan by giving each task to a fresh subagent, reviewing every task, then reviewing the whole branch.
    MIT

  • Jesse Vincent

    Using Superpowers

    Using Superpowers is the agent skill that makes your agent check for a relevant Superpowers skill before it responds, announce it, and follow it whenever one applies.
    MIT

  • Jesse Vincent

    Writing Plans

    Writing Plans is an agent skill from Superpowers: your agent turns a spec into a step-by-step implementation plan with exact files, signatures and tests, before touching code.
    MIT

Building skills and MCP servers

  • Anthropic

    MCP Builder

    MCP Builder is Anthropic's open-source agent skill for building MCP servers in TypeScript or Python, from API research and tool design to testing and a 10-question evaluation.
    OfficialApache-2.0

  • Anthropic

    Skill Creator

    Skill Creator is Anthropic's open-source agent skill for making skills: the agent drafts a SKILL.md with you, tests it with and without the skill, and tunes its description so it triggers.
    OfficialApache-2.0

  • Jesse Vincent

    Writing Skills

    Writing Skills is an agent skill from Superpowers: your agent writes new skills test-first, running pressure scenarios with subagents before and after the skill exists.
    MIT

Science and research

  • Hugging Face

    Hugging Face CLI

    hf-cli is Hugging Face's agent skill for its hf command-line tool: it lets an agent download and upload models and datasets, manage repos, Spaces and buckets, read papers and run jobs on the Hub.
    OfficialApache-2.0
  • huggingface-llm-trainer is Hugging Face's agent skill for fine-tuning language and vision models on its cloud GPUs, using TRL or Unsloth on Hugging Face Jobs, with no local GPU needed.
    OfficialApache-2.0

Learning AI assistants

  • Anthropic

    Academy Guide

    Academy Guide is Anthropic's agent skill that ends Claude's answers about using Claude with one or two matching Claude Academy courses or tutorials, and only when the match is strong.
    OfficialApache-2.0
  • Discernment Nudge is Anthropic's agent skill that ends a substantive Claude answer with two or three specific follow-up questions, so you can check its facts, reasoning and assumptions.
    OfficialApache-2.0

Short lists

Which skills we list

A skill can run code on your computer, so we list skills from three kinds of source only: the company that makes the product, publishing from its own GitHub account; open-source repositories with more than 5,000 stars; and repositories that AI engines from at least three companies name for the same question. How we check each fact.