JavaScript, marked
Every repository here has at least 1,000 stars and was marked against the same scheme. Curated lists, books, and tutorials are marked separately and left out, since asking whether an agent can install a list of links means nothing.
The class as a whole
873
repositories marked
63
median mark out of a hundred
37%
have no test command an agent can find
35%
ship an AGENTS.md
Seeded from the 864 most-starred repositories on 25 August 2026 and re-marked since. Figures current to 10 October 2026.
| Repository | MD | Language | Added | Stars | Mark | ||
|---|---|---|---|---|---|---|---|
| 1 | affaan-m/ECC The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. | ✓ | JavaScript | 25 Aug | 276k | 89 | A |
| 2 | sahat/hackathon-starter A boilerplate for Node.js web applications | ✓ | JavaScript | 25 Aug | 35k | 89 | A |
| 3 | axios/axios Promise based HTTP client for the browser and node.js | ✓ | JavaScript | 25 Aug | 109k | 87 | A |
| 4 | pbakaus/impeccable The design language that makes your AI harness better at design. | ✓ | JavaScript | 25 Aug | 79k | 87 | A |
| 5 | serverless/serverless ⚡ Serverless Framework – Effortlessly build apps that auto-scale, incur zero costs when idle, and require minimal maintenance using AWS Lambda and other managed cloud services. | ✓ | JavaScript | 25 Aug | 47k | 87 | A |
| 6 | gsd-build/get-shit-done A light-weight and powerful meta-prompting, context engineering and spec-driven development system for Claude Code by TÂCHES. | ✓ | JavaScript | 25 Aug | 64k | 85 | A |
| 7 | moment/moment Parse, validate, manipulate, and display dates in javascript. | ✓ | JavaScript | 25 Aug | 48k | 85 | A |
| 8 | louislam/uptime-kuma A fancy self-hosted monitoring tool | ✓ | JavaScript | 25 Aug | 92k | 84 | A- |
| 9 | sveltejs/svelte web development for the rest of us | ✓ | JavaScript | 25 Aug | 88k | 84 | A- |
| 10 | webpack/webpack A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the application on demand. Through "loaders", modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff. | ✓ | JavaScript | 25 Aug | 66k | 84 | A- |
| 11 | gchq/CyberChef The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis | ✓ | JavaScript | 25 Aug | 36k | 83 | A- |
| 12 | jgraph/drawio-desktop Official electron build of draw.io | ~ | JavaScript | 25 Aug | 63k | 82 | A- |
| 13 | pcottle/learnGitBranching An interactive git visualization and tutorial. Aspiring students of git can use this app to educate and challenge themselves towards mastery of git! | ~ | JavaScript | 25 Aug | 34k | 82 | A- |
| 14 | meteor/meteor Meteor, the JavaScript App Platform | ✓ | JavaScript | 25 Aug | 45k | 79 | A- |
| 15 | vercel/next.js The React Framework | ✓ | JavaScript | 25 Aug | 143k | 78 | A- |
| 16 | mui/material-ui Material UI: Comprehensive React component library that implements Google's Material Design. Free forever. | ✓ | JavaScript | 25 Aug | 99k | 78 | A- |
| 17 | Chalarangelo/30-seconds-of-code Coding articles to level up your development skills | ~ | JavaScript | 25 Aug | 129k | 77 | B+ |
| 18 | ToolJet/ToolJet Open-source foundation of ToolJet AI - the enterprise app generation platform for internal tools, dashboards, business applications, workflows and AI agents. Build visually, from a prompt, or from Claude Code, Codex and Cursor over MCP 🚀 | ✓ | JavaScript | 25 Aug | 41k | 77 | B+ |
| 19 | DietrichGebert/ponytail Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote. | ✓ | JavaScript | 25 Aug | 160k | 74 | B+ |
| 20 | career-ops-hq/career-ops Open-source AI job search agent and job finder: scan job boards, score each job 1-5 against your CV before you apply, tailor an ATS-friendly resume and cover letter, get interview prep and a job application tracker. It helps you fill in each application; you press Submit. Runs locally in your AI coding CLI (Claude Code, Codex, OpenCode and more). | ✓ | JavaScript | 25 Aug | 74k | 73 | B+ |
| 21 | santifer/career-ops Open-source AI job search: scan job portals, evaluate listings into a structured A-H report with a global 1-5 score, tailor your CV, track applications — runs locally in your AI coding CLI (Claude Code, Codex, OpenCode, Antigravity…) | ✓ | JavaScript | 25 Aug | 70k | 73 | B+ |
| 22 | coreyhaines31/marketingskills Marketing skills for Claude Code and AI agents. CRO, copywriting, SEO, analytics, and growth engineering. | ✓ | JavaScript | 25 Aug | 54k | 73 | B+ |
| 23 | addyosmani/agent-skills Production-grade engineering skills for AI coding agents. | ✓ | JavaScript | 25 Aug | 103k | 72 | B+ |
| 24 | h5bp/html5-boilerplate A professional front-end template for building fast, robust, and adaptable web apps or sites. | · | JavaScript | 25 Aug | 58k | 72 | B+ |
| 25 | mozilla/pdf.js PDF Reader in JavaScript | ✓ | JavaScript | 25 Aug | 54k | 72 | B+ |
| 26 | react/react The library for web and native user interfaces. | ~ | JavaScript | 25 Aug | 251k | 71 | B+ |
| 27 | github/awesome-copilot Community-contributed instructions, agents, skills, and configurations to help you make the most of GitHub Copilot. | ✓ | JavaScript | 25 Aug | 40k | 71 | B+ |
| 28 | anuraghazra/github-readme-stats :zap: Dynamically generated stats for your github readmes | · | JavaScript | 25 Aug | 80k | 70 | B+ |
| 29 | iamkun/dayjs ⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API | · | JavaScript | 25 Aug | 49k | 70 | B+ |
| 30 | markedjs/marked A markdown parser and compiler. Built for speed. | · | JavaScript | 25 Aug | 37k | 70 | B+ |
| 31 | zenorocha/clipboard.js :scissors: Modern copy to clipboard. No Flash. Just 3kb gzipped :clipboard: | · | JavaScript | 25 Aug | 34k | 70 | B+ |
| 32 | trekhleb/javascript-algorithms 📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings | · | JavaScript | 25 Aug | 197k | 69 | B |
| 33 | microsoft/Web-Dev-For-Beginners 24 Lessons, 12 Weeks, Get Started as a Web Developer | ✓ | JavaScript | 25 Aug | 97k | 69 | B |
| 34 | chartjs/Chart.js Simple HTML5 Charts using the <canvas> tag | · | JavaScript | 25 Aug | 68k | 69 | B |
| 35 | typicode/json-server Get a full fake REST API with zero coding in less than 30 seconds (seriously) | · | JavaScript | 25 Aug | 76k | 68 | B |
| 36 | leonardomso/33-js-concepts 📜 33 JavaScript concepts every developer should know. | · | JavaScript | 25 Aug | 67k | 66 | B |
| 37 | google/zx A tool for writing better scripts | · | JavaScript | 25 Aug | 46k | 66 | B |
| 38 | TheAlgorithms/JavaScript Algorithms and Data Structures implemented in JavaScript for beginners, following best practices. | · | JavaScript | 25 Aug | 34k | 66 | B |
| 39 | atlassian/react-beautiful-dnd Beautiful and accessible drag and drop for lists with React | · | JavaScript | 25 Aug | 34k | 66 | B |
| 40 | preactjs/preact ⚛️ Fast 3kB React alternative with the same modern API. Components & Virtual DOM. | · | JavaScript | 25 Aug | 39k | 65 | B |
| 41 | naptha/tesseract.js Pure Javascript OCR for more than 100 Languages 📖🎉🖥 | · | JavaScript | 25 Aug | 39k | 65 | B |
| 42 | impress/impress.js It's a presentation framework based on the power of CSS3 transforms and transitions in modern browsers and inspired by the idea behind prezi.com. | · | JavaScript | 25 Aug | 38k | 65 | B |
| 43 | expressjs/express Fast, unopinionated, minimalist web framework for node. | · | JavaScript | 25 Aug | 70k | 64 | B |
| 44 | koajs/koa Expressive middleware for node.js using ES2017 async functions | · | JavaScript | 25 Aug | 36k | 64 | B |
| 45 | PatrickJS/awesome-cursorrules 📄 Configuration files that enhance Cursor AI editor experience with custom rules and behaviors | · | JavaScript | 25 Aug | 41k | 63 | B |
| 46 | phaserjs/phaser Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering. | · | JavaScript | 25 Aug | 40k | 63 | B |
| 47 | microsoft/monaco-editor A browser based code editor | · | JavaScript | 25 Aug | 47k | 62 | B |
| 48 | yarnpkg/yarn The 1.x line is frozen - features and bugfixes now happen on https://github.com/yarnpkg/berry | · | JavaScript | 25 Aug | 41k | 62 | B |
| 49 | byoungd/up 人生进阶指南 韩先凯的人生进阶指南 英语学习指南 离谱的人生 AI时代终身学习：AI、学习、创业与成长。 | · | JavaScript | 25 Aug | 68k | 61 | B- |
| 50 | nodejs/node Node.js JavaScript runtime ✨🐢🚀✨ | ✓ | JavaScript | 25 Aug | 122k | 60 | B- |
| 51 | gorhill/uBlock uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean. | · | JavaScript | 25 Aug | 68k | 60 | B- |
| 52 | parcel-bundler/parcel The zero configuration build tool for the web. 📦🚀 | · | JavaScript | 25 Aug | 44k | 60 | B- |
| 53 | remoteintech/remote-jobs Source for remoteintech.company — a community-maintained directory of remote-friendly tech companies | ✓ | JavaScript | 25 Aug | 41k | 60 | B- |
| 54 | Dogfalo/materialize Materialize, a CSS Framework based on Material Design | · | JavaScript | 25 Aug | 39k | 60 | B- |
| 55 | fastify/fastify Fast and low overhead web framework, for Node.js | · | JavaScript | 25 Aug | 37k | 60 | B- |
| 56 | songquanpeng/one-api LLM API 管理 & 分发系统，支持 OpenAI、Azure、Anthropic Claude、Google Gemini、DeepSeek、字节豆包、ChatGLM、文心一言、讯飞星火、通义千问、360 智脑、腾讯混元等主流模型，统一 API 适配，可用于 key 管理与二次分发。单可执行文件，提供 Docker 镜像，一键部署，开箱即用。LLM API management & key redistribution system, unifying multiple providers under a single API. Single binary, Docker-ready, with an English UI. | · | JavaScript | 25 Aug | 37k | 60 | B- |
| 57 | carbon-app/carbon :black_heart: Create and share beautiful images of your source code | · | JavaScript | 25 Aug | 36k | 59 | B- |
| 58 | hakimel/reveal.js The HTML Presentation Framework | · | JavaScript | 25 Aug | 72k | 58 | B- |
| 59 | jquery/jquery jQuery JavaScript Library | · | JavaScript | 25 Aug | 60k | 58 | B- |
| 60 | Leaflet/Leaflet 🍃 JavaScript library for mobile-friendly interactive maps 🇺🇦 | · | JavaScript | 25 Aug | 46k | 58 | B- |
| 61 | react/create-react-app Set up a modern web app by running one command. | · | JavaScript | 25 Aug | 103k | 57 | B- |
| 62 | lodash/lodash A modern JavaScript utility library delivering modularity, performance, & extras. | · | JavaScript | 25 Aug | 61k | 56 | B- |
| 63 | gatsbyjs/gatsby React-based framework with performance, scalability, and security built in. | · | JavaScript | 25 Aug | 56k | 56 | B- |
| 64 | mrdoob/three.js JavaScript 3D Library. | · | JavaScript | 25 Aug | 116k | 55 | B- |
| 65 | Mintplex-Labs/anything-llm Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience | · | JavaScript | 25 Aug | 67k | 55 | B- |
| 66 | angular/angular.js AngularJS - HTML enhanced for web apps! | · | JavaScript | 25 Aug | 58k | 55 | B- |
| 67 | poteto/hiring-without-whiteboards ⭐️ Companies that don't have a broken hiring process | · | JavaScript | 25 Aug | 53k | 55 | B- |
| 68 | prettier/prettier Prettier is an opinionated code formatter. | · | JavaScript | 25 Aug | 52k | 55 | B- |
| 69 | Unitech/pm2 Node.js/Typescript/Bun Production Process Manager with a built-in Load Balancer. | · | JavaScript | 25 Aug | 43k | 55 | B- |
| 70 | drawdb-io/drawdb Free, simple, and intuitive online database diagram editor and SQL generator. | · | JavaScript | 25 Aug | 40k | 55 | B- |
| 71 | lutzroeder/netron Visualizer for neural network, deep learning and machine learning models | · | JavaScript | 25 Aug | 34k | 55 | B- |
| 72 | airbnb/javascript JavaScript Style Guide | · | JavaScript | 25 Aug | 148k | 54 | C+ |
| 73 | usebruno/bruno Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia) | · | JavaScript | 25 Aug | 47k | 54 | C+ |
| 74 | denysdovhan/wtfjs 🤪 A list of funny and tricky JavaScript examples | · | JavaScript | 25 Aug | 38k | 54 | C+ |
| 75 | Snailclimb/JavaGuide Java 面试 & 后端通用面试指南，覆盖计算机基础、数据库、分布式、高并发、系统设计与 AI 应用开发 | · | JavaScript | 25 Aug | 159k | 53 | C+ |
| 76 | typicode/husky Git hooks made easy 🐶 woof! | · | JavaScript | 25 Aug | 35k | 53 | C+ |
| 77 | qishibo/AnotherRedisDesktopManager 🚀🚀🚀A faster, better and more stable Redis desktop manager [GUI client], compatible with Linux, Windows, Mac. | · | JavaScript | 25 Aug | 35k | 53 | C+ |
| 78 | atom/atom :atom: The hackable text editor | · | JavaScript | 25 Aug | 61k | 52 | C+ |
| 79 | algorithm-visualizer/algorithm-visualizer :fireworks:Interactive Online Platform that Visualizes Algorithms from Code | · | JavaScript | 25 Aug | 49k | 52 | C+ |
| 80 | alvarotrigo/fullPage.js fullPage plugin by Alvaro Trigo. Create full screen pages fast and simple | · | JavaScript | 25 Aug | 35k | 52 | C+ |
| 81 | GitSquared/edex-ui A cross-platform, customizable science fiction terminal emulator with advanced monitoring & touchscreen support. | · | JavaScript | 25 Aug | 45k | 50 | C+ |
| 82 | adobe/brackets An open source code editor for the web, written in JavaScript, HTML and CSS. | · | JavaScript | 25 Aug | 33k | 50 | C+ |
| 83 | bigskysoftware/htmx </> htmx - high power tools for HTML | · | JavaScript | 25 Aug | 50k | 48 | C+ |
| 84 | dcloudio/uni-app A cross-platform framework using Vue.js | · | JavaScript | 25 Aug | 42k | 47 | C |
| 85 | juliangarnier/anime JavaScript animation engine | · | JavaScript | 25 Aug | 73k | 46 | C |
| 86 | yangshun/front-end-interview-handbook Front End interview preparation materials for busy engineers (updated for 2026) | · | JavaScript | 25 Aug | 44k | 45 | C |
| 87 | saadeghi/daisyui 🌼 🌼 🌼 🌼 🌼 The most popular, free and open-source Tailwind CSS component library | · | JavaScript | 25 Aug | 43k | 45 | C |
| 88 | Leonxlnx/taste-skill Taste-Skill - gives your AI good taste. stops the AI from generating boring, generic slop | ~ | JavaScript | 25 Aug | 94k | 44 | C |
| 89 | azl397985856/leetcode LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。) | · | JavaScript | 25 Aug | 56k | 44 | C |
| 90 | DavidHDev/react-bits The biggest open source library of animated, interactive & fully customizable React and NextJS components for building memorable websites. | · | JavaScript | 25 Aug | 49k | 44 | C |
| 91 | adam-p/markdown-here Google Chrome, Firefox, and Thunderbird extension that lets you write email in Markdown and render it before sending. | · | JavaScript | 25 Aug | 60k | 43 | C |
| 92 | chinese-poetry/chinese-poetry The most comprehensive database of Chinese poetry 🧶最全中华古诗词数据库, 唐宋两朝近一万四千古诗人, 接近5.5万首唐诗加26万宋诗. 两宋时期1564位词人，21050首词。 | · | JavaScript | 25 Aug | 54k | 43 | C |
| 93 | Semantic-Org/Semantic-UI Semantic is a UI component framework based around useful principles from natural language. | · | JavaScript | 25 Aug | 51k | 36 | D |
| 94 | goabstract/Awesome-Design-Tools The best design tools and plugins for everything 👉 | · | JavaScript | 25 Aug | 41k | 36 | D |
| 95 | NaiboWang/EasySpider A visual no-code/code-free web crawler/spider易采集：一个可视化浏览器自动化测试/数据采集/网页爬虫软件，可以无代码图形化的设计和执行爬虫任务。别名：ServiceWrapper面向Web应用的智能化服务封装系统。 | · | JavaScript | 25 Aug | 45k | 33 | D |
| 96 | nwjs/nw.js Call all Node.js modules directly from DOM/WebWorker and enable a new way of writing applications with all Web technologies. | · | JavaScript | 25 Aug | 41k | 32 | D |
| 97 | sudheerj/reactjs-interview-questions List of top 500 ReactJS Interview Questions & Answers....Coding exercise questions are coming soon!! | · | JavaScript | 25 Aug | 45k | 29 | F |
| 98 | NARKOZ/hacker-scripts Based on a true story | · | JavaScript | 25 Aug | 50k | 26 | F |
| 99 | FortAwesome/Font-Awesome The iconic SVG, font, and CSS toolkit | · | JavaScript | 25 Aug | 77k | 16 | F |
Mark yours.
Two API calls. Nothing cloned, nothing executed, no account.