3,491 repositories keep their own agent configuration in the open: a CLAUDE.md, a rules file, instructions for Copilot, a skill the project runs on itself. These are not mods to install. They are worth reading for what they reveal — what a maintainer thinks an agent gets wrong.
Building agents7,412Data and AI4,299Backend and APIs3,694Languages3,682Planning3,492Git and workflow3,285Code review2,942Memory and context2,581Research2,499Writing and docs2,458Testing2,454Frontend2,420DevOps and cloud2,410Security2,106Productivity2,076Project management1,686
All Claude Code31,991 Codex23,077 OpenCode21,846 GitHub Copilot3,491 Gemini CLI1,901 Cursor1,721 Kiro33 Windsurf25
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| PrefectHQ/fastmcp gofastmcp.com 🚀 The fast, Pythonic way to build MCP servers and clients. | 27,538 | Claude Code, Codex, GitHub Copilot, OpenCode | 11 | 4,821 tok |
| gastownhall/beads beads.gascity.com Beads - A memory upgrade for your coding agent | 26,934 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 4,440 tok |
| chromium/chromium chromium.googlesource.com The official GitHub mirror of the Chromium source | 24,720 | Claude Code, Codex, GitHub Copilot, Gemini CLI | 12 | 186 tok |
| kriasoft/react-starter-kit reactstarter.com Modern React starter kit with Bun, TypeScript, Tailwind CSS, tRPC, Stripe, and Cloudflare | 23,675 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,405 tok |
| JanDeDobbeleer/oh-my-posh ohmyposh.dev The most customisable and low-latency cross platform/shell prompt renderer | 23,423 | Codex, GitHub Copilot, OpenCode | 5 | 2,155 tok |
| dotnet/maui dot.net .NET MAUI is the .NET Multi-platform App UI, a framework for building native device applic | 23,319 | Claude Code, Codex, GitHub Copilot | 50 | 34,574 tok |
| forem/forem forem.com For empowering community 🌱 | 22,774 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 3,983 tok |
| marimo-team/marimo marimo.io A reactive notebook for Python — run reproducible experiments, query with SQL, execute as | 22,662 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 740 tok |
| oxc-project/oxc oxc.rs ⚓ A collection of high-performance JavaScript tools. | 22,650 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,367 tok |
| pascalorg/editor editor.pascal.app Create and share 3D architectural projects. | 21,883 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 8 | 888 tok |
| comet-ml/opik comet.com Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows wit | 21,822 | Claude Code, Codex, GitHub Copilot, OpenCode | 29 | 14,869 tok |
| gitbutlerapp/gitbutler gitbutler.com The GitButler version control client, backed by Git, powered by Tauri/Rust/Svelte | 21,621 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 2,928 tok |
| ColorlibHQ/gentelella gentelella.colorlib.com Free admin dashboard template — vanilla JS, SCSS, Vite 8. No Bootstrap, no jQuery. | 21,506 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 8,085 tok |
| dyad-sh/dyad dyad.sh Local, open-source AI app builder for power users ✨ v0 / Lovable / Replit / Bolt alternati | 21,387 | Claude Code, Codex, GitHub Copilot, OpenCode | 29 | 4,293 tok |
| stefan-jansen/machine-learning-for-trading ml4trading.io Code for Machine Learning for Trading, 3rd edition — from data sourcing to live execution. | 20,794 | GitHub Copilot | 1 | 592 tok |
| compiler-explorer/compiler-explorer godbolt.org Run compilers interactively from your web browser and interact with the assembly | 19,047 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 2,482 tok |
| nukeop/nuclear nuclearplayer.com Streaming music player that finds free music for you | 18,398 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 4,563 tok |
| microsoft/data-formulator data-formulator.ai 🪄 Data Formulator is an interactive AI-powered data analysis system makes it easy to conn | 17,091 | Claude Code, GitHub Copilot, Cursor | 5 | 122 tok |
| triggerdotdev/trigger.dev trigger.dev Trigger.dev – build and deploy fully‑managed AI agents and workflows | 16,219 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 11 | 3,528 tok |
| alshedivat/al-folio alshedivat.github.io A beautiful, simple, clean, and responsive Jekyll theme for academics | 16,091 | Claude Code, Codex, GitHub Copilot, OpenCode | 12 | 3,826 tok |
| FreshRSS/FreshRSS freshrss.org A free, self-hostable news aggregator… | 15,931 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 2,241 tok |
| apache/pulsar pulsar.apache.org Apache Pulsar - distributed pub-sub messaging system | 15,326 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 1,674 tok |
| open-metadata/OpenMetadata open-metadata.org The Open Context Layer for Data and AI , OpenMetadata is the open platform for building t | 15,113 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 9,296 tok |
| greensock/gsap-skills Official AI skills for GSAP. These skills teach AI coding agents how to correctly use GSAP | 14,966 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 6 | 1,838 tok |
| analysis-tools-dev/static-analysis analysis-tools.dev ⚙️ A curated list of static analysis (SAST) tools and linters for all programming language | 14,766 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 344 tok |
| AgriciDaniel/claude-obsidian Self-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude rea | 14,662 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 3 | 1,528 tok |
| NanmiCoder/cc-haha Local-first cross-platform desktop workspace for Claude Code / agents: multi-agent, Git wo | 14,284 | Codex, GitHub Copilot, OpenCode | 2 | 2,885 tok |
| superset-sh/superset superset.sh Superset is an agentic IDE to orchestrate 100+ coding agents in parallel. Run any agent wi | 13,793 | Claude Code, Codex, GitHub Copilot, OpenCode | 25 | 2,667 tok |
| Arindam200/awesome-ai-apps dub.sh A collection of projects showcasing RAG, agents, workflows, and other AI use cases | 13,751 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 3,496 tok |
| Open-LLM-VTuber/Open-LLM-VTuber open-llm-vtuber.github.io Talk to any LLM with hands-free voice interaction, voice interruption, and Live2D taking f | 13,642 | Claude Code, GitHub Copilot | 2 | 2,908 tok |
| microsoft/agent-framework aka.ms A framework for building, orchestrating and deploying AI agents and multi-agent workflows | 13,350 | Claude Code, Codex, GitHub Copilot | 3 | 321 tok |
| plantuml/plantuml plantuml.com Generate diagrams from textual description | 13,301 | Claude Code, GitHub Copilot | 2 | 1,198 tok |
| InsForge/InsForge insforge.dev The all-in-one, open-source backend platform for agentic coding. InsForge gives your codin | 12,855 | Claude Code, Codex, GitHub Copilot | 9 | 1,185 tok |
| laradock/laradock laradock.io Full PHP development environment for Docker. Run Laravel, Symfony, CodeIgniter, Phalcon, W | 12,670 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 557 tok |
| meshery/meshery meshery.io Meshery, the cloud native manager | 11,704 | Claude Code, Codex, GitHub Copilot, OpenCode | 25 | 8,073 tok |
| jxxghp/MoviePilot movie-pilot.org NAS media library automation management tool | 11,694 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 4,266 tok |
| data-privacy-stack/presidio presidio.dataprivacystack.org An open-source framework for detecting, redacting, masking, and anonymizing sensitive data | 10,747 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 6,710 tok |
| github/copilot-sdk Multi-platform SDK for integrating GitHub Copilot Agent into apps and services | 10,460 | Claude Code, Codex, GitHub Copilot | 8 | 3,604 tok |
| unoplatform/uno platform.uno Open-source platform for building cross-platform native Mobile, Web, Desktop, and Embedded | 10,038 | Claude Code, Codex, GitHub Copilot, OpenCode | 36 | 5,186 tok |
| microsoft/vscode-copilot-chat code.visualstudio.com Copilot Chat extension for VS Code | 9,970 | Claude Code, Codex, GitHub Copilot | 6 | 7,048 tok |
| GetBindu/Bindu docs.getbindu.com Bindu: The identity, communication, and payments layer for AI agents. | 9,765 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 7,026 tok |
| omnigent-ai/omnigent omnigent.ai Omnigent is an open-source AI agent framework and meta-harness: orchestrate Claude Code, C | 9,727 | Claude Code, Codex, GitHub Copilot, OpenCode | 12 | 1,770 tok |
| mediago-dev/mediago downloader.caorushizi.cn Cross-platform video downloader — sniff and grab m3u8/HLS streams, Bilibili, YouTube and m | 9,211 | Claude Code, Codex, GitHub Copilot, OpenCode | 17 | 3,175 tok |
| mikro-orm/mikro-orm mikro-orm.io TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. S | 9,200 | Claude Code, GitHub Copilot | 3 | 1,553 tok |
| azerothcore/azerothcore-wotlk azerothcore.org Complete Open Source and Modular solution for MMO | 8,873 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 1,184 tok |
| redis/RedisInsight redis.io Redis GUI by Redis | 8,816 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 26 | 2,845 tok |
| open-pencil/open-pencil openpencil.dev AI-native design editor. Open-source Figma alternative. | 8,185 | Codex, GitHub Copilot, OpenCode | 3 | 5,378 tok |
| webiny/webiny-js webiny.com Open-source, self-hosted CMS platform on AWS serverless (Lambda, DynamoDB, S3). TypeScript | 8,032 | Claude Code, Codex, GitHub Copilot, OpenCode | 11 | 1,432 tok |
| Azure-Samples/azure-search-openai-demo azure.microsoft.com A sample app for the Retrieval-Augmented Generation pattern running in Azure, using Azure | 7,752 | Codex, GitHub Copilot, OpenCode | 2 | 5,951 tok |
| microsoft/TinyTroupe LLM-powered multiagent persona simulation for imagination enhancement and business insight | 7,562 | GitHub Copilot | 1 | 2,629 tok |