44,817 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 agents8,442Claude Code6,875Data and AI3,584Git and workflow3,574Backend and APIs3,550Languages3,468Planning3,315Code review2,876Testing2,653DevOps and cloud2,462Writing and docs2,461Memory and context2,373Research2,315Frontend2,301Security2,167Project management1,944
All Claude Code32,436 Codex24,692 OpenCode23,614 GitHub Copilot3,700 Gemini CLI2,016 Cursor1,769 Windsurf202 Kiro113
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| microsoft/VFSForGit Virtual File System for Git: Enable Git at Enterprise Scale | 6,149 | Codex, OpenCode | 1 | 3,328 tok |
| drona23/claude-token-efficient One CLAUDE.md file. Keeps Claude responses terse. Reduces output verbosity on heavy workfl | 6,149 | Claude Code | 3 | 82 tok |
| ModelEngine-Group/nexent modelengine-group.github.io Nexent is a zero-code platform for auto-generating production-grade AI agents using Harnes | 6,146 | Claude Code, Codex, OpenCode | 9 | 1,653 tok |
| bethington/ghidra-mcp Ghidra MCP Server — 200+ MCP tools for AI-powered reverse engineering. GUI plugin + headle | 6,133 | Claude Code, Codex, OpenCode | 2 | 19,786 tok |
| lemonade-sdk/lemonade lemonade-server.ai Lemonade helps users discover and run local AI apps by serving optimized LLMs right from t | 6,124 | Claude Code, Codex, OpenCode | 2 | 3,727 tok |
| agent-substrate/substrate ate.dev Agent Substrate: the core system | 6,108 | Claude Code, Codex, OpenCode | 7 | 3,883 tok |
| sooperset/mcp-atlassian mcp-atlassian.soomiles.com MCP server for Atlassian tools (Confluence, Jira) | 6,087 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 2,281 tok |
| eternityspring/shuohao-skills studio.reelbenchai.com AI short-drama production skill collection: character bibles, adaptation outlines, art bib | 6,084 | Codex, OpenCode | 1 | 397 tok |
| ChrisWiles/claude-code-showcase Comprehensive Claude Code project configuration example with hooks, skills, agents, comman | 6,078 | Claude Code | 19 | 509 tok |
| Azure/azure-sdk-for-net This repository is for active development of the Azure SDK for .NET. For consumers of the | 6,077 | Claude Code, Codex, GitHub Copilot, OpenCode | 23 | 3,648 tok |
| UfoMiao/zcf zcf.ufomiao.com Zero-Config Code Flow for Claude code & Codex | 6,072 | Claude Code, Codex, OpenCode | 8 | 2,039 tok |
| EverMind-AI/Raven raven.evermind.ai The Harness of Harnesses • Super Agent: a trusted, persistent, self-evolving multi-agent e | 6,047 | Claude Code, Codex, OpenCode | 2 | 5,918 tok |
| antfu/skills Anthony Fu's curated collection of agent skills. | 6,043 | Codex, OpenCode | 1 | 1,476 tok |
| jacklandrin/OnlySwitch onlyswitch.click 👑 The all-in-one macOS menu bar companion: customizable controls, system monitor, AI Agen | 6,039 | Codex, OpenCode | 1 | 1,271 tok |
| dograh-hq/dograh app.dograh.com Open source voice AI platform. Self-hosted alternative to Vapi and Retell. On Prem, BYOK a | 6,030 | Claude Code, Codex, OpenCode | 7 | 395 tok |
| Galaxy-Dawn/claude-scholar Semi-automated research assistant for academic research and software development. Supports | 5,999 | Claude Code | 1 | 1,385 tok |
| btraceio/btrace Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs | 5,997 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 2,445 tok |
| fengshao1227/ccg-workflow ccg.fengshao1227.com Multi-model collaboration workflow engine — run /ccg:go with one command, and AI automatic | 5,976 | Claude Code | 11 | 20,208 tok |
| dmmulroy/anti-slop Opinionated Oxlint rules for rejecting low-evidence TypeScript and JavaScript patterns | 5,966 | Codex, OpenCode | 1 | 90 tok |
| agentgateway/agentgateway agentgateway.dev Next Generation Agentic Proxy for AI Agents and MCP servers | 5,964 | GitHub Copilot | 1 | 41 tok |
| cloudflare/agents developers.cloudflare.com Build and deploy AI Agents on Cloudflare | 5,956 | Codex, OpenCode | 1 | 2,311 tok |
| grapeot/devin.cursorrules Magic to turn Cursor/Windsurf as 90% of Devin | 5,953 | GitHub Copilot, Cursor | 2 | 2,252 tok |
| agentscope-ai/AgentTeams aliyun.com An open-source Collaborative Multi-Agent OS for transparent, human-in-the-loop task coordi | 5,941 | Codex, OpenCode | 1 | 4,279 tok |
| Dammyjay93/interface-design interface-design.dev Design engineering for Claude Code. Craft, memory, and enforcement for consistent UI. | 5,927 | Claude Code, Codex | 3 | — |
| pgsty/pigsty pigsty.io Enterprise-Grade OSS PostgreSQL Distribution with HA, PITR, IaC, Monitor, 12 kernel forks | 5,908 | Claude Code, Codex, OpenCode | 2 | 5,175 tok |
| areal-project/AReaL areal-ai.io The RL Bridge for LLM-based Agent Applications. Made Simple & Flexible. | 5,901 | Claude Code, Codex, OpenCode | 27 | 4,525 tok |
| talebook/talebook talebook.org A simple and easy-to-use personal library | 5,890 | Claude Code, Codex, OpenCode | 13 | 4,680 tok |
| kanbn/kan kan.bn The open source Trello alternative. | 5,885 | Codex, OpenCode | 1 | 2,725 tok |
| vercel-labs/open-agents open-agents.dev An open source template for building cloud agents. | 5,882 | Claude Code, Codex, OpenCode | 2 | 1,253 tok |
| AmanVarshney01/create-better-t-stack better-t-stack.dev A modern CLI tool for scaffolding end-to-end type-safe TypeScript projects with best pract | 5,856 | Codex, OpenCode | 1 | 1,152 tok |
| dotnet/skills Repository for skills to assist AI coding agents with .NET and C# | 5,836 | Codex, GitHub Copilot, OpenCode | 2 | 835 tok |
| vercel/eve eve.dev The Open Framework for Building Agents | 5,809 | Claude Code, Codex, OpenCode | 6 | 4,029 tok |
| junhoyeo/tokscale tokscale.ai 🛰️ Track token usage across AI coding agents from your terminal. 🏅 Global leaderboard wi | 5,801 | Codex, OpenCode | 1 | 3,777 tok |
| ScrapeCreators/social-media-research-skills scrapecreators.com AI agent skills for social media research. Outlier posts, comment mining, competitor teard | 5,799 | Claude Code, Codex, OpenCode | 2 | 332 tok |
| maziyarpanahi/openmed openmed.life Local-first healthcare AI: clinical NER and HIPAA PII de-identification on hardware you co | 5,781 | Codex, OpenCode | 1 | 1,960 tok |
| Tencent/teamai-cli Make Every Team AI Native | 5,780 | Claude Code, Codex, OpenCode | 2 | 2,219 tok |
| jgraph/drawio-mcp | 5,779 | Claude Code, Codex, OpenCode | 2 | 7,559 tok |
| awslabs/aidlc-workflows awslabs.github.io AI-Driven Life Cycle (AI-DLC) adaptive workflow steering rules for AI coding agents | 5,751 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 6,423 tok |
| SenteLabsAI/OpenExecutive openexecutive.ai AI-powered virtual executive team — a single coherent executive persona backed by 8 specia | 5,750 | Claude Code | 7 | 5,143 tok |
| vercel/streamdown streamdown.ai A drop-in replacement for react-markdown, designed for AI-powered streaming. | 5,748 | Claude Code | 1 | — |
| OpenBMB/UltraRAG ultrarag.github.io A Low-Code MCP Framework for Building Complex and Innovative RAG Pipelines | 5,737 | Claude Code, Codex, OpenCode | 2 | 4,162 tok |
| the-open-agent/openagent openagentai.org ⚡️next-generation personal AI assistant powered by LLM, RAG and agent loops, supporting co | 5,730 | Claude Code | 1 | 1,228 tok |
| GargantuaX/gemini-watermark-remover pilio.ai A high-performance, 100% client-side tool for removing Gemini AI image & video watermarks. | 5,716 | Codex, OpenCode | 1 | 6,834 tok |
| rstudio/shiny shiny.posit.co Easy interactive web applications with R | 5,706 | Claude Code, Codex, OpenCode | 2 | 977 tok |
| microsoft/skill-recorder Desktop app that records your on-screen work session and uses the GitHub Copilot SDK to re | 5,697 | GitHub Copilot | 1 | 280 tok |
| cri-o/cri-o cri-o.io Open Container Initiative-based implementation of Kubernetes Container Runtime Interface | 5,689 | Claude Code, Codex, OpenCode | 2 | 2,303 tok |
| zxlie/FeHelper fehelper.com 😍FeHelper—Web frontend assistant (Awesome! Chrome & Firefox & MS-Edge Extension, All-in-o | 5,682 | Codex, OpenCode | 1 | 480 tok |
| nextcloud/android 📱 Nextcloud Android app | 5,677 | Claude Code, Codex, OpenCode | 5 | 3,670 tok |
| excalidraw/excalidraw-mcp mcp.excalidraw.com Fast and streamable Excalidraw MCP App | 5,645 | Claude Code | 1 | 2,343 tok |
| alibaba/QLExpress QLExpress is a powerful, lightweight, dynamic language for the Java platform aimed at impr | 5,644 | Claude Code, Codex, OpenCode | 2 | 2,324 tok |