# Best Agent Skills

> An independent guide to agent skills (the open SKILL.md format) for ChatGPT, Claude, Codex, GitHub Copilot, Cursor, Gemini CLI and other agents: skills grouped by what they make, real install counts from skills.sh, where each app keeps skills, and how to check a skill before installing.

Site: https://bestagentskills.com/
Install counts: skills.sh, fetched Oct 20, 2026.

## Where each app keeps skills

- ChatGPT: Skills come inside plugins, and work in ChatGPT on the web, desktop and mobile. The desktop app also holds standalone skills. (docs: https://learn.chatgpt.com/docs/build-skills)
- Claude app: Word, Excel, PowerPoint and PDF skills are built in. You can upload your own skills as .zip files. (docs: https://support.claude.com/en/articles/12512180-using-skills-in-claude)
- Codex: `~/.agents/skills` (docs: https://learn.chatgpt.com/docs/build-skills)
- Claude Code: `~/.claude/skills` (docs: https://code.claude.com/docs/en/skills)
- Cursor: `~/.cursor/skills` (docs: https://cursor.com/docs/context/skills)
- GitHub Copilot: `~/.copilot/skills` (docs: https://docs.github.com/en/copilot/concepts/agents/about-agent-skills)
- Gemini CLI: `~/.gemini/skills` (docs: https://geminicli.com/docs/cli/skills/)
- Windsurf: `~/.codeium/windsurf/skills` (docs: https://docs.devin.ai/desktop/cascade/skills.md)
- Kiro: `~/.kiro/skills` (docs: https://kiro.dev/docs/skills/)
- Antigravity: `~/.gemini/antigravity/skills` (docs: https://antigravity.google/docs/skills)
- OpenCode: `~/.config/opencode/skills` (docs: https://opencode.ai/docs/skills/)
- Cline: `~/.agents/skills` (docs: https://docs.cline.bot/features/skills)
- Amp: `~/.config/agents/skills` (docs: https://ampcode.com/docs/customize/skills)
- Goose: `~/.agents/skills` (docs: https://goose-docs.ai/docs/guides/context-engineering/using-skills)

## Popular skills for everyday work (by installs via skills.sh)

### Pitch decks & slides

- [PowerPoint decks](https://www.skills.sh/anthropics/skills/pptx): Creates, edits and reads PowerPoint files: pitch decks, slide decks, merging or splitting slides. 239,268 installs. Source: https://github.com/anthropics/skills/tree/main/skills/pptx
- [Theme Factory](https://www.skills.sh/anthropics/skills/theme-factory): Applies one of 10 ready-made themes (colors and fonts) to slides, docs, reports or landing pages. 93,497 installs. Source: https://github.com/anthropics/skills/tree/main/skills/theme-factory
- [Strategic slides](https://www.skills.sh/nextlevelbuilder/ui-ux-pro-max-skill/slides): Writes browser-based presentations with charts, consistent design and copywriting formulas per slide. 36,068 installs. Source: https://github.com/nextlevelbuilder/ui-ux-pro-max-skill/tree/main/.claude/skills/slides
- [HTML PPT Studio](https://www.skills.sh/lewislulu/html-ppt-skill/html-ppt): Builds polished slide decks that open in a browser, from a library of styles, layouts and animations. 20,675 installs. Source: https://github.com/lewislulu/html-ppt-skill

### Reports, PDFs & spreadsheets

- [PDF toolkit](https://www.skills.sh/anthropics/skills/pdf): Creates PDFs, fills PDF forms, merges and splits files, pulls out tables and text, and makes scans searchable. 213,939 installs. Source: https://github.com/anthropics/skills/tree/main/skills/pdf
- [Word documents](https://www.skills.sh/anthropics/skills/docx): Writes and edits Word files with proper headings, tables of contents, page numbers and letterheads. 204,259 installs. Source: https://github.com/anthropics/skills/tree/main/skills/docx
- [Excel spreadsheets](https://www.skills.sh/anthropics/skills/xlsx): Builds and fixes spreadsheets: formulas, formatting, charts and cleaning messy data, for .xlsx and .csv. 185,249 installs. Source: https://github.com/anthropics/skills/tree/main/skills/xlsx
- [Doc co-authoring](https://www.skills.sh/anthropics/skills/doc-coauthoring): Walks you through writing a proposal, spec or other document together, step by step. 92,578 installs. Source: https://github.com/anthropics/skills/tree/main/skills/doc-coauthoring

### Websites & landing pages

- [Frontend design](https://www.skills.sh/anthropics/skills/frontend-design): Gives pages a distinctive look, with deliberate typography and layout, so they don't look like a template. 1,010,385 installs. Source: https://github.com/anthropics/skills/tree/main/skills/frontend-design
- [Taste Skill](https://www.skills.sh/leonxlnx/taste-skill/design-taste-frontend): Art direction for websites drawn from 247 award-gallery sites, then checks the result in a real browser. 644,913 installs. Source: https://github.com/Leonxlnx/taste-skill/tree/main/skills/taste-skill
- [UI UX Pro Max](https://www.skills.sh/nextlevelbuilder/ui-ux-pro-max-skill/ui-ux-pro-max): Design know-how for websites and apps, with searchable libraries of styles, color palettes and font pairings. 405,807 installs. Source: https://github.com/nextlevelbuilder/ui-ux-pro-max-skill/tree/main/.claude/skills/ui-ux-pro-max
- [Impeccable](https://www.skills.sh/pbakaus/impeccable/impeccable): Designs, critiques and polishes websites, landing pages and app screens: layout, type, color, motion and copy. 347,278 installs. Source: https://github.com/pbakaus/impeccable/tree/main/.pi/skills/impeccable

### Launch & explainer videos

- [Brand reels and montages](https://www.skills.sh/heygen-com/hyperframes/general-video): Builds longer or multi-scene videos: brand and sizzle reels, montages, title cards and footage remixes. 649,798 installs. Source: https://github.com/heygen-com/hyperframes/tree/main/skills/general-video
- [Product launch video](https://www.skills.sh/heygen-com/hyperframes/product-launch-video): Turns a product page, script or brief into a launch or promo video. 529,643 installs. Source: https://github.com/heygen-com/hyperframes/tree/main/skills/product-launch-video
- [Faceless explainer](https://www.skills.sh/heygen-com/hyperframes/faceless-explainer): Turns an article, notes or a topic into an explainer video with invented visuals for each scene. 512,840 installs. Source: https://github.com/heygen-com/hyperframes/tree/main/skills/faceless-explainer
- [Music to video](https://www.skills.sh/heygen-com/hyperframes/music-to-video): Turns a music track into a beat-synced video: a lyric video, slideshow or kinetic promo. 412,274 installs. Source: https://github.com/heygen-com/hyperframes/tree/main/skills/music-to-video

### Writing that sounds like you

- [Copywriting](https://www.skills.sh/coreyhaines31/marketingskills/copywriting): Writes or rewrites marketing copy for homepages, landing pages, pricing and product pages. 230,061 installs. Source: https://github.com/coreyhaines31/marketingskills/tree/main/skills/copywriting
- [Copy editing](https://www.skills.sh/coreyhaines31/marketingskills/copy-editing): Edits and tightens existing copy: proofreading, sharper messaging, refreshing outdated pages. 145,741 installs. Source: https://github.com/coreyhaines31/marketingskills/tree/main/skills/copy-editing
- [Internal comms](https://www.skills.sh/anthropics/skills/internal-comms): Drafts status reports, leadership updates, company newsletters, FAQs and incident reports. 78,876 installs. Source: https://github.com/anthropics/skills/tree/main/skills/internal-comms
- [Humanizer](https://www.skills.sh/blader/humanizer/humanizer): Rewrites AI-sounding text so it reads like you, without changing what it says. 9,986 installs. Source: https://github.com/blader/humanizer

### SEO & marketing

- [SEO audit](https://www.skills.sh/coreyhaines31/marketingskills/seo-audit): Finds out why a site isn't ranking: on-page issues, meta tags, page speed, indexing problems. 232,891 installs. Source: https://github.com/coreyhaines31/marketingskills/tree/main/skills/seo-audit
- [AI search (AEO)](https://www.skills.sh/coreyhaines31/marketingskills/ai-seo): Helps your content get cited in AI answers from ChatGPT, Perplexity and Google AI Overviews. 147,062 installs. Source: https://github.com/coreyhaines31/marketingskills/tree/main/skills/ai-seo
- [Cold email](https://www.skills.sh/coreyhaines31/marketingskills/cold-email): Writes cold emails and follow-up sequences, plus LinkedIn outreach and reply handling. 124,986 installs. Source: https://github.com/coreyhaines31/marketingskills/tree/main/skills/cold-email
- [Social content](https://www.skills.sh/coreyhaines31/marketingskills/social): Plans, writes and repurposes posts for LinkedIn, X, Instagram, TikTok and Facebook, including carousels and video scripts. 81,250 installs. Source: https://github.com/coreyhaines31/marketingskills/tree/main/skills/social

### Posters, banners & diagrams

- [Canvas design](https://www.skills.sh/anthropics/skills/canvas-design): Creates posters and other static designs as PNG or PDF files. 119,721 installs. Source: https://github.com/anthropics/skills/tree/main/skills/canvas-design
- [YouTube thumbnails](https://www.skills.sh/higgsfield-ai/skills/higgsfield-youtube-thumbnail): Designs YouTube thumbnails and Shorts covers. Needs the Higgsfield image service. 94,700 installs. Source: https://github.com/higgsfield-ai/skills/tree/main/higgsfield-youtube-thumbnail
- [Banner design](https://www.skills.sh/nextlevelbuilder/ui-ux-pro-max-skill/banner-design): Designs banners for social posts, ads, website headers and print, with several art directions to choose from. 36,843 installs. Source: https://github.com/nextlevelbuilder/ui-ux-pro-max-skill/tree/main/.claude/skills/banner-design
- [Excalidraw diagrams](https://www.skills.sh/github/awesome-copilot/excalidraw-diagram-generator): Turns a description into a flowchart, mind map or diagram you can open in Excalidraw. 31,467 installs. Source: https://github.com/github/awesome-copilot/tree/main/skills/excalidraw-diagram-generator

### Research & planning

- [Content strategy](https://www.skills.sh/coreyhaines31/marketingskills/content-strategy): Decides what to write about: topic clusters, content pillars and an editorial calendar. 160,429 installs. Source: https://github.com/coreyhaines31/marketingskills/tree/main/skills/content-strategy
- [Customer research](https://www.skills.sh/coreyhaines31/marketingskills/customer-research): Analyzes interviews, surveys and support tickets, and builds personas and jobs-to-be-done. 112,007 installs. Source: https://github.com/coreyhaines31/marketingskills/tree/main/skills/customer-research
- [Obsidian notes](https://www.skills.sh/kepano/obsidian-skills/obsidian-markdown): Writes notes in Obsidian's format, with links between notes, callouts and properties. 91,344 installs. Source: https://github.com/kepano/obsidian-skills/tree/main/skills/obsidian-markdown
- [Last 30 days](https://www.skills.sh/mvanhorn/last30days-skill/last30days): Researches what people said about any topic in the last 30 days on Reddit, X, YouTube, TikTok and the web. 49,526 installs. Source: https://github.com/mvanhorn/last30days-skill/tree/main/skills/last30days

## Official collections

- Anthropic: 19 skills, https://github.com/anthropics/skills
- OpenAI: 44 skills, https://github.com/openai/skills
- GitHub: 450 skills, https://github.com/github/awesome-copilot
- Vercel: 9 skills, https://github.com/vercel-labs/agent-skills

## Safety

- Skills can run programs on your computer. Snyk scanned 3,984 skills (Feb 2026) and found critical issues in 13.4%, including 76 confirmed malicious payloads: https://snyk.io/blog/toxicskills-malicious-ai-agent-skills-clawhub/
- Before installing: list every file, read any scripts, and stop if the skill asks for passwords, API keys or downloads from other sites.