21,923 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 agents7,410Claude Code6,578Data and AI3,695Backend and APIs3,487Languages3,404Planning3,188Git and workflow3,106Code review2,712Memory and context2,351Testing2,325Research2,289DevOps and cloud2,283Writing and docs2,279Frontend2,245Security1,983Productivity1,702
All Claude Code32,024 Codex23,149 OpenCode21,923 GitHub Copilot3,513 Gemini CLI1,905 Cursor1,728 Windsurf83 Kiro58
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| plbrault/youre-the-os plbrault.github.io A game where you are a computer's OS and you have to manage processes, memory and I/O even | 2,682 | Codex, OpenCode | 1 | 632 tok |
| lopopolo/harness-engineering openai.com 🐎 Ryan Lopopolo’s anthology, field guide, and agent context bundle for harness engineerin | 2,681 | Claude Code, Codex, OpenCode | 2 | 1,339 tok |
| jgravelle/jcodemunch-mcp jcodemunch.com Cut AI token costs 95%+ on code exploration. The leading MCP server for precise, symbol-le | 2,672 | Claude Code, Codex, OpenCode | 24 | 37,849 tok |
| glincker/thesvg thesvg.org 6,500+ brand SVG icons for developers. Tree-shakeable, typed, open source. npm i thesvg | 2,662 | Codex, OpenCode | 1 | 844 tok |
| mongodb/mongo-java-driver mongodb.com The official MongoDB drivers for Java, Kotlin, and Scala | 2,661 | Claude Code, Codex, OpenCode | 4 | 1,002 tok |
| org2AI/ORG2 System of record for how agents build software: Built-in rust harness & 20+ CLIs. | 2,649 | Codex, OpenCode | 1 | 3,019 tok |
| wassim249/fastapi-langgraph-agent-production-ready-template A production-ready FastAPI template for building AI agent applications with LangGraph inte | 2,644 | Claude Code, Codex, OpenCode | 2 | 1,960 tok |
| huggingface/tau twotimespi.dev A Python port of Pi’s minimalist coding agent. | 2,639 | Codex, OpenCode | 1 | 678 tok |
| gridaco/grida grida.co Grida — Open Canvas | 2,635 | Claude Code, Codex, OpenCode | 30 | 2,504 tok |
| heshengtao/super-agent-party agentparty.top ⭐ All-in-one AI companion! Super Agent Party = Self-hosted neuro sama + openclaw! ⭐ | 2,635 | Codex, OpenCode | 1 | 2,311 tok |
| module-federation/core module-federation.io Module Federation is a concept that allows developers to share code and resources across m | 2,630 | Claude Code, Codex, Cursor, OpenCode | 9 | 6,288 tok |
| SummerSec/ShiroAttack2 Comprehensive exploitation of Shiro deserialization vulnerabilities (for authorized testin | 2,627 | Claude Code, Codex, OpenCode | 3 | 2,182 tok |
| centminmod/my-claude-code-setup threads.com Shared starter template configuration and CLAUDE.md memory bank system for Claude Code | 2,624 | Claude Code, Codex, Gemini CLI, OpenCode | 5 | 2,545 tok |
| nunit/nunit nunit.org NUnit Framework | 2,623 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 719 tok |
| plexe-ai/plexe plexe.ai ✨ Build a machine learning model from a prompt | 2,618 | Claude Code, Codex, OpenCode | 2 | 1,434 tok |
| yaojingang/yao-meta-skill YAO = Yielding AI Outcomes. A rigorous engineering, evaluation, governance, and portabilit | 2,602 | Codex, OpenCode | 1 | 3,710 tok |
| lncrawl/lightnovel-crawler lncrawl.bitanon.dev Generate and download e-books from online sources. | 2,588 | Claude Code, Codex, OpenCode | 10 | 3,111 tok |
| supabase/agent-skills supabase.com Agent Skills to help developers using AI agents with Supabase | 2,584 | Claude Code, Codex, OpenCode | 2 | 1,633 tok |
| ForceInjection/AI-fundamentals forceinjection.github.io AI fundamentals—GPU architecture, CUDA programming, large language model basics, and AI Ag | 2,578 | Claude Code, Codex, OpenCode | 2 | 3,658 tok |
| HarleyCoops/Math-To-Manim Create Epic Math and Physics Animations & Study Notes From Text and Images. | 2,573 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 12,381 tok |
| itayinbarr/little-coder itayinbarr.github.io A harness optimized to smaller LLMs | 2,566 | Codex, OpenCode | 1 | 1,788 tok |
| Azure/azure-sdk-for-java This repository is for active development of the Azure SDK for Java. For consumers of the | 2,565 | Claude Code, Codex, GitHub Copilot, OpenCode | 16 | 3,984 tok |
| kayba-ai/agentic-context-engine kayba.ai 🧠 Make your agents learn from experience. Now available as a hosted solution at kayba.ai | 2,565 | Claude Code, Codex, OpenCode | 19 | 2,759 tok |
| neilotoole/sq sq.io sq data wrangler | 2,560 | Claude Code, Codex, OpenCode | 5 | 3,942 tok |
| Agent-Field/agentfield agentfield.ai Build, run and scale AI agents like API and microservices | 2,555 | Claude Code, Codex, OpenCode | 2 | 4,146 tok |
| graphistry/pygraphistry PyGraphistry is a Python library to quickly load, shape, embed, and explore big graphs wit | 2,554 | Claude Code, Codex, OpenCode | 2 | 502 tok |
| huggingface/OpenEnv huggingface.co An interface library for RL post training with environments. | 2,553 | Claude Code, Codex, OpenCode | 32 | 3,744 tok |
| git-ai-project/git-ai usegitai.com A Git extension for tracking the AI-generated code in your repos | 2,540 | Claude Code, Codex, OpenCode | 2 | 4,562 tok |
| getopenscreen/openscreen getopenscreen.com Record your screen, ship a demo. Free and open-source, GPU-accelerated, no watermarks, no | 2,516 | Codex, OpenCode | 1 | 5,627 tok |
| openwebf/webf openwebf.com Bring JavaScript and Web Dev to Flutter | 2,513 | Claude Code, Codex, OpenCode | 13 | 2,407 tok |
| samuelgursky/davinci-resolve-mcp MCP server integration for DaVinci Resolve Studio | 2,508 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 30 | 7,033 tok |
| expo/skills A collection of AI agent skills for working with Expo projects and Expo Application Servic | 2,507 | Claude Code, Codex, OpenCode | 2 | 2,546 tok |
| agentclientprotocol/claude-agent-acp Use Claude Agent SDK from any ACP client | 2,504 | Claude Code, Codex, OpenCode | 2 | 388 tok |
| snarktank/antfarm antfarm.cool Build your agent team in OpenClaw with one command. | 2,499 | Codex, OpenCode | 1 | 582 tok |
| mattzcarey/shippie shippie.dev extendable code review and QA agent 🚢 | 2,496 | Codex, OpenCode | 1 | 993 tok |
| simonoppowa/OpenNutriTracker 🍴 OpenNutriTracker is a free and open source calorie tracker with a focus on simplicity a | 2,496 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 6,993 tok |
| terryyin/lizard A simple code complexity analyser without caring about the C/C++ header files or Java impo | 2,493 | Codex, Cursor, OpenCode | 9 | 1,003 tok |
| CarGuo/GSYGithubAPP juejin.im A comprehensive open-source React Native project with rich features, suitable for learning | 2,491 | Codex, OpenCode | 1 | 1,542 tok |
| Piebald-AI/tweakcc Customize Claude Code's system prompts, create custom toolsets, input pattern highlighters | 2,486 | Claude Code, Codex, OpenCode | 3 | 883 tok |
| itmeo/webgradients webgradients.com 180 free CSS3, Figma, Sketch & PSD gradients — plus a JSON dataset for design tools, gener | 2,474 | Codex, OpenCode | 1 | 1,579 tok |
| Exorust/TorchLeet torch-leet.vercel.app LeetCode for PyTorch — 65 ML/AI interview problems from real interviews at Google, Meta, A | 2,470 | Codex, OpenCode | 1 | 492 tok |
| Bitterbot-AI/bitterbot-desktop bitterbot.ai A local-first AI agent with persistent memory, emotional intelligence, and a peer-to-peer | 2,461 | Codex, OpenCode | 1 | 2,569 tok |
| makecindy/cindy cindy.app Consider it done. The open-source AI agent that works out of the box · Think it, and make | 2,460 | Claude Code, Codex, OpenCode | 2 | 4,475 tok |
| Nano-Collective/nanocoder docs.nanocollective.org An open coding agent for your terminal, built by a community collective rather than a comp | 2,458 | Claude Code, Codex, OpenCode | 2 | 3,873 tok |
| exceptionless/Exceptionless exceptionless.com Exceptionless application | 2,456 | Claude Code, Codex, OpenCode | 20 | 1,538 tok |
| tobi/walgit | 2,452 | Codex, OpenCode | 1 | 11,719 tok |
| softaworks/agent-toolkit A curated collection of skills for AI coding agents. Skills are packaged instructions and | 2,446 | Claude Code, Codex, OpenCode | 2 | 755 tok |
| FullAgent/fulling fulling.ai Fulling is an AI-powered Full-stack Engineer Agent. Built with Next.js, Claude, shadcn/ui, | 2,445 | Codex, OpenCode | 1 | 874 tok |
| subsy/ralph-tui ralph-tui.com | 2,437 | Claude Code, Codex, OpenCode | 3 | 1,095 tok |
| sdyckjq-lab/llm-wiki-skill A personal knowledge-base building Skill based on the Karpathy llm-wiki methodology, suppo | 2,433 | Claude Code, Codex, OpenCode | 2 | 4,044 tok |