--- title: GitHub - addyosmani/agent-skills: Production-grade... description: Agent Skills is an open-source collection of 20 production-grade engineering skill definitions packaged as Markdown files for AI coding agents (Claude Code,... canonical: https://daily.dev/posts/0xnq9ma01 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: GitHub - addyosmani/agent-skills: Production-grade engineering skills for AI coding agents. | daily.dev og:description: Agent Skills is an open-source collection of 20 production-grade engineering skill definitions packaged as Markdown files for AI coding agents (Claude Code,... og:url: https://daily.dev/posts/0xnq9ma01 og:image: https://api.daily.dev/og/posts/0xNQ9ma01.png og:image:alt: Post cover image og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # GitHub - addyosmani/agent-skills: Production-grade engineering skills for AI coding agents. **[Dev World](https://daily.dev/sources/dev_world)** · [@hadilbenabdallah](https://daily.dev/hadilbenabdallah) · 3 upvotes · 1 comments ## Summary Agent Skills is an open-source collection of 20 production-grade engineering skill definitions packaged as Markdown files for AI coding agents (Claude Code, Cursor, Windsurf, Gemini CLI, Copilot, etc.). Skills encode structured workflows, quality gates, and best practices that senior engineers use across the full development lifecycle — from idea refinement and spec writing through coding, testing, code review, and deployment. Seven slash commands map to lifecycle phases and automatically activate relevant skills. Each skill includes step-by-step processes, anti-rationalization tables (countering common excuses to skip steps), and mandatory verification requirements. The project draws from Google engineering culture, embedding concepts like Hyrum's Law, the Beyonce Rule, trunk-based development, and Chesterton's Fence directly into agent workflows. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [AddyOsmani.com](https://daily.dev/posts/addyosmani-com-uuv0iho2m) · Addy Osmani · 191 upvotes · 6 comments - [Agent Skills explained: Replacing AGENTS.md with reusable AI knowledge](https://daily.dev/posts/agent-skills-explained-replacing-agents-md-with-reusable-ai-knowledge-4lgrqdva9) · SwiftLee · 1 upvotes · 0 comments - [Behind the scenes: How we build, test, and scale Google Agent Skills](https://daily.dev/posts/behind-the-scenes-how-we-build-test-and-scale-google-agent-skills-xz3oqrnps) · Google Cloud · 5 upvotes · 1 comments - [Manage agent skills with GitHub CLI](https://daily.dev/posts/manage-agent-skills-with-github-cli-cwqtearpx) · GitHub Changelog · 1 upvotes · 0 comments --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#claude-code](https://daily.dev/tags/claude-code), [#shell](https://daily.dev/tags/shell) [View this post on daily.dev](https://daily.dev/posts/0xnq9ma01) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/0xnq9ma01","headline":"GitHub - addyosmani/agent-skills: Production-grade engineering skills for AI coding agents.","text":"Shared: GitHub - addyosmani/agent-skills: Production-grade engineering skills for AI coding agents.","url":"https://daily.dev/posts/0xnq9ma01","datePublished":"2026-05-20T08:43:12.012Z","dateModified":"2026-10-15T02:23:49.202Z","author":{"@type":"Person","name":"Hadil Ben Abdallah","url":"https://daily.dev/hadilbenabdallah","image":"https://media.daily.dev/image/upload/s--npVXQBAk--/f_auto/v1726134205/avatars/avatar_9pqnrpoJdg1CfgqIBuMCl","description":"An Amazing Software Engineer & Technical Writer","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":38100}},"image":"https://media.daily.dev/image/upload/s--P4t4XyoV--/f_auto/v1722860399/public/Placeholder%2001","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":3},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":1}],"sharedContent":{"@type":"WebPage","url":"https://api.daily.dev/r/jf2pWPrXx"},"isPartOf":{"@type":"WebPage","url":"https://daily.dev/squads/dev_world","name":"Dev World"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Dev World","item":"https://daily.dev/squads/dev_world"},{"@type":"ListItem","position":3,"name":"GitHub - addyosmani/agent-skills: Production-grade engineering skills for AI coding agents."}]} ```