32,004 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 agents7,374Claude Code6,573Data and AI3,706Backend and APIs3,486Languages3,398Planning3,181Git and workflow3,100Code review2,701Memory and context2,354Testing2,311Research2,292DevOps and cloud2,282Writing and docs2,269Frontend2,250Security1,980Productivity1,695
All Claude Code32,004 Codex23,112 OpenCode21,881 GitHub Copilot3,501 Gemini CLI1,902 Cursor1,724 Windsurf62 Kiro40
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| e2b-dev/E2B docs.e2b.dev Open-source, secure environment with real-world tools for enterprise-grade agents. | 13,689 | Claude Code, Codex, OpenCode | 2 | 310 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 | 13,664 | Claude Code, GitHub Copilot | 2 | 2,908 tok |
| browseros-ai/BrowserOS browseros.com 🌐 The open-source Agentic browser; alternative to ChatGPT Atlas, Perplexity Comet, Dia. | 13,579 | Claude Code | 4 | — |
| MiniMax-AI/skills | 13,516 | Claude Code | 1 | — |
| 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 |
| modelcontextprotocol/typescript-sdk ts.sdk.modelcontextprotocol.io The official TypeScript SDK for Model Context Protocol servers and clients | 13,339 | Claude Code | 1 | 3,530 tok |
| plantuml/plantuml plantuml.com Generate diagrams from textual description | 13,301 | Claude Code, GitHub Copilot | 2 | 1,198 tok |
| MetaMask/metamask-extension metamask.io :globe_with_meridians: :electric_plug: The MetaMask browser extension enables browsing Eth | 13,208 | Claude Code, Codex, Cursor, OpenCode | 3 | 14,674 tok |
| microsoft/playwright-cli playwright.dev CLI for common Playwright actions. Record and generate Playwright code, inspect selectors | 13,123 | Claude Code | 2 | 203 tok |
| ixartz/Next-js-Boilerplate nextjs-boilerplate.com 🚀🎉📚 Nextjs Boilerplate and Starter with App Router and Page Router support, Tailwind CS | 13,069 | Claude Code, Codex, OpenCode | 2 | 886 tok |
| XiaomiMiMo/MiMo-Code mimo.xiaomi.com MiMo Code: Where Models and Agents Co-Evolve | 12,958 | Claude Code, Codex, OpenCode | 2 | 1,172 tok |
| vnotex/vnote docs.vnote.fun A pleasant note-taking platform in native C++. | 12,936 | Claude Code, Codex, OpenCode | 2 | 6,141 tok |
| Portkey-AI/gateway portkey.ai A blazing fast AI Gateway with integrated guardrails. Route to 1,600+ LLMs, 50+ AI Guardra | 12,920 | Claude Code | 1 | 844 tok |
| StarTrail-org/LEANN arxiv.org [MLsys2026 Best Paper]: https://arxiv.org/abs/2506.08276. RAG on Everything with LEANN. En | 12,890 | Claude Code | 1 | 2,437 tok |
| The-PR-Agent/pr-agent pr-agent.ai 🚀 PR Agent: The Original Open-Source PR Reviewer. This project is not the Qodo free tier. | 12,875 | Claude Code, Codex, OpenCode | 2 | 2,603 tok |
| InsForge/InsForge insforge.dev The all-in-one, open-source backend platform for agentic coding. InsForge gives your codin | 12,861 | Claude Code, Codex, GitHub Copilot | 9 | 1,185 tok |
| sirmalloc/ccstatusline 🚀 Beautiful highly customizable statusline for Claude Code CLI with powerline support, th | 12,789 | Claude Code, Codex, OpenCode | 2 | 1,844 tok |
| blackboardsh/electrobun blackboard.sh Build ultra fast, tiny, and cross-platform desktop apps with Typescript. | 12,761 | Claude Code, Codex | 2 | 371 tok |
| EverMind-AI/EverOS evermind.ai One portable memory layer for every AI agent: local-first, Markdown-native, user-owned, an | 12,748 | Claude Code | 7 | 1,056 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 |
| rommapp/romm romm.app A beautiful, powerful, self-hosted ROM manager and player. | 12,657 | Claude Code, Codex, OpenCode | 12 | 2,257 tok |
| datahub-project/datahub datahub.com The Context Platform for your Data and AI Stack | 12,643 | Claude Code, Codex, OpenCode | 4 | 7,374 tok |
| Piebald-AI/claude-code-system-prompts All parts of Claude Code's system prompt, 27 builtin tool descriptions, sub agent prompts | 12,596 | Claude Code | 1 | 362 tok |
| Wei-Shaw/claude-relay-service pincc.ai CRS — a self-hosted Claude Code mirror and all-in-one open-source proxy service that provi | 12,591 | Claude Code | 1 | 2,425 tok |
| zilliztech/claude-context Code search MCP for Claude Code. Make entire codebase the context for any coding agent. | 12,499 | Claude Code, Codex, OpenCode | 2 | 1,547 tok |
| axolotl-ai-cloud/axolotl docs.axolotl.ai Go ahead and axolotl questions | 12,445 | Claude Code, Codex, OpenCode | 2 | 1,680 tok |
| Orchestra-Research/AI-Research-SKILLs orchestra-research.com Comprehensive open-source library of AI research and engineering skills for any AI model. | 12,383 | Claude Code | 1 | 3,596 tok |
| run-llama/liteparse developers.llamaindex.ai A fast, helpful, and open-source document parser | 12,261 | Claude Code, Codex, OpenCode | 2 | 2,104 tok |
| emdash-cms/emdash emdashcms.com EmDash is a full-stack TypeScript CMS based on Astro; the spiritual successor to WordPress | 12,239 | Claude Code, Codex, OpenCode | 3 | 6,651 tok |
| semantica-agi/semantica getsemantica.ai Graph-Native Infrastructure for Context and Accountable AI Systems | 12,210 | Claude Code | 1 | — |
| elie222/inbox-zero getinboxzero.com The world's best AI personal assistant for email. Open source app to help you reach inbox | 12,155 | Claude Code, Codex, Cursor, OpenCode | 26 | 1,754 tok |
| jina-ai/reader jina.ai Convert any URL to an LLM-friendly input with a simple prefix https://r.jina.ai/ | 11,955 | Claude Code | 1 | 2,542 tok |
| FlashML-org/FreeToken FreeToken brings datacenter-scale model serving to your desktop. Run massive models locall | 11,907 | Claude Code, Codex, OpenCode | 2 | 988 tok |
| mrexodia/ida-pro-mcp plugins.hex-rays.com AI-powered reverse engineering assistant that bridges IDA Pro with language models through | 11,872 | Claude Code | 1 | 1,135 tok |
| TencentCloud/CubeSandbox cubesandbox.com Instant, Concurrent, Secure & Lightweight Sandbox for AI Agents. | 11,808 | Claude Code, Codex, OpenCode | 11 | 232 tok |
| reactjs/react.dev react.dev The React documentation website | 11,798 | Claude Code | 13 | 393 tok |
| NangoHQ/nango nango.dev Build product integrations with AI. | 11,746 | Claude Code, Codex, OpenCode | 12 | 609 tok |
| BeehiveInnovations/pal-mcp-server The power of Claude Code / GeminiCLI / CodexCLI + [Gemini / OpenAI / OpenRouter / Azure / | 11,734 | Claude Code, Codex, OpenCode | 4 | 3,590 tok |
| meshery/meshery meshery.io Meshery, the cloud native manager | 11,710 | Claude Code, Codex, GitHub Copilot, OpenCode | 25 | 8,073 tok |
| jxxghp/MoviePilot movie-pilot.org NAS media library automation management tool | 11,702 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 4,266 tok |
| cocoindex-io/cocoindex cocoindex.io Incremental engine for long horizon agents 🌟 Star if you like it! | 11,496 | Claude Code, Codex, OpenCode | 5 | 4,383 tok |
| 0xJacky/nginx-ui nginxui.com Yet another WebUI for Nginx | 11,477 | Claude Code, Codex, OpenCode | 3 | 1,366 tok |
| humanlayer/humanlayer humanlayer.dev The best way to get AI coding agents to solve hard problems in complex codebases. | 11,471 | Claude Code | 35 | 751 tok |
| Arize-ai/phoenix arize.com AI Observability & Evaluation | 11,348 | Claude Code, Codex, OpenCode | 31 | 192 tok |
| Jeffallan/claude-skills 67 Specialized Skills for Full-Stack Developers. Transform Claude Code into your expert pa | 11,347 | Claude Code | 1 | 2,588 tok |
| toss/es-toolkit es-toolkit.dev A modern JavaScript utility library that's 2-3 times faster and up to 97% smaller, a major | 11,334 | Claude Code, Codex, OpenCode | 8 | 2,737 tok |
| tw93/Kami kami.tw93.fun 👩🚒 Good content deserves good paper. | 11,227 | Claude Code, Codex, OpenCode | 2 | 6,917 tok |
| MemTensor/MemOS memos.openmem.net Self-evolving memory OS for LLM & AI Agents: ultra-persistent memory, hybrid-retrieval, an | 11,209 | Claude Code, Codex, OpenCode | 7 | 3,034 tok |
| holaboss-ai/holaOS holaos.ai Open-source agentic workspace enterprises can make their own. Connect the systems you alre | 11,169 | Claude Code, Codex, OpenCode | 2 | 1,361 tok |
| BrasilAPI/BrasilAPI brasilapi.com.br Vamos transformar o Brasil em uma API? | 11,107 | Claude Code | 2 | — |