3,700 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 |
|---|---|---|---|---|
| Azure/azure-sdk-for-java This repository is for active development of the Azure SDK for Java. For consumers of the | 2,563 | Claude Code, Codex, GitHub Copilot, OpenCode | 18 | 3,984 tok |
| zigcc/awesome-zig A collaborative list of awesome Zig libraries and resources. | 2,548 | GitHub Copilot | 1 | 138 tok |
| RAIT-09/obsidian-agent-client rait-09.github.io Bring AI agents into Obsidian via Agent Client Protocol (ACP), such as Claude Code, Codex | 2,468 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 7 | 5,375 tok |
| llmsresearch/paperbanana Open source implementation and extension of Google Research’s PaperBanana for automated ac | 2,466 | Claude Code, GitHub Copilot | 4 | 890 tok |
| utkuozdemir/pv-migrate CLI tool to easily migrate or backup/restore Kubernetes persistent volumes | 2,432 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 8,694 tok |
| OPCFoundation/UA-.NETStandard OPC Unified Architecture .NET Standard | 2,431 | Claude Code, Codex, GitHub Copilot | 6 | 4,031 tok |
| rsyslog/rsyslog rsyslog.com High-performance log ingestion and ETL engine | 2,347 | Claude Code, Codex, GitHub Copilot, OpenCode | 22 | 6,845 tok |
| Bottelet/DaybydayCRM daybydaycrm.com DaybydayCRM an open-source CRM, to help you keep track of your daily workflow. | 2,331 | Claude Code, Codex, GitHub Copilot, OpenCode | 16 | 1,632 tok |
| OpenCoworkAI/open-cowork Open-source AI agent desktop app for Windows & macOS. One-click install Claude Code, MCP t | 2,256 | Claude Code, GitHub Copilot | 7 | — |
| Lumiwealth/lumibot lumibot.lumiwealth.com Python trading framework with AI agents that actually place the trade. Backtest, paper and | 2,211 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 20,050 tok |
| codestoryai/aide aide.dev The open-source AI-native IDE | 2,188 | GitHub Copilot | 1 | 419 tok |
| microsoft/intelligent-terminal devblogs.microsoft.com A fork of Windows Terminal with native agent integration, right in your command line. | 2,146 | Claude Code, Codex, GitHub Copilot, OpenCode | 28 | 25,996 tok |
| chongdashu/unreal-mcp Enable AI assistant clients like Cursor, Windsurf and Claude Desktop to control Unreal Eng | 2,111 | GitHub Copilot | 1 | 287 tok |
| zereight/gitlab-mcp zereight.github.io MCP server for GitLab: 277 tools for projects, MRs, issues, pipelines, wikis and more via | 2,085 | Claude Code, GitHub Copilot | 54 | 1,765 tok |
| microsoft/azure-devops-mcp The MCP server for Azure DevOps, bringing the power of Azure DevOps directly to your agent | 2,081 | GitHub Copilot | 2 | 311 tok |
| coder/xum xum.coder.com A desktop app for isolated, parallel agentic development | 2,068 | Claude Code, Codex, GitHub Copilot, OpenCode | 8 | 10 tok |
| JurajNyiri/HomeAssistant-Tapo-Control Control for Tapo cameras as a Home Assistant component | 2,046 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode, Windsurf | 6 | 1,258 tok |
| Kochava-Studios/witsy Witsy: desktop AI assistant / universal MCP client | 2,039 | Claude Code, Codex, GitHub Copilot, OpenCode | 7 | 5,730 tok |
| Azure/azureml-examples docs.microsoft.com Official community-driven Azure Machine Learning examples, tested with GitHub Actions. | 2,034 | GitHub Copilot | 1 | 270 tok |
| WeaveMindAI/weft A programming language for AI orchestrations | 2,025 | Claude Code, Codex, GitHub Copilot | 22 | 14,538 tok |
| quran/quran.com-frontend-next quran.com Frontend build on next.js | 1,928 | Claude Code, Codex, GitHub Copilot, OpenCode | 25 | 518 tok |
| MadAppGang/dingo A meta-language for Go that adds Result types, error propagation (?), and pattern matchi | 1,914 | Claude Code, GitHub Copilot | 12 | 4,132 tok |
| meshtastic/Meshtastic-Android meshtastic.org Android application for Meshtastic | 1,912 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 68 | 4,731 tok |
| arabold/docs-mcp-server grounded.tools Grounded Docs MCP Server: Open-Source Alternative to Context7, Nia, and Ref.Tools | 1,861 | Claude Code, Codex, GitHub Copilot, OpenCode | 24 | 740 tok |
| Azure/azure-sdk-for-go docs.microsoft.com This repository is for active development of the Azure SDK for Go. For consumers of the SD | 1,857 | Claude Code, Codex, GitHub Copilot, OpenCode | 10 | 5,076 tok |
| relaticle/relaticle relaticle.com Open-source CRM your AI agents can read and update: companies, people, opportunities, task | 1,811 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 32 | 54,503 tok |
| coderabbitai/git-worktree-runner Bash-based Git worktree manager with editor and AI tool integration. Automates per-branch | 1,808 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 13,382 tok |
| posit-dev/py-shiny shiny.posit.co Shiny for Python | 1,767 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 7,898 tok |
| github/gh-stack gh.io GitHub Stacked PRs | 1,749 | Codex, GitHub Copilot, OpenCode | 2 | 4,095 tok |
| RazorConsole/RazorConsole razorconsole.com Build agentic TUI applications with .NET Razor and Spectre.Console | 1,745 | Claude Code, Codex, GitHub Copilot | 3 | 647 tok |
| classroomio/classroomio classroomio.com ClassroomIO is an Intelligent Customer Training Platform that helps SaaS companies use ed | 1,737 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 13,716 tok |
| fossasia/eventyay eventyay.com Open Source Event Management, Ticketing and Checkins, Talks and Schedules, Video and Inter | 1,723 | Claude Code, Codex, GitHub Copilot, Cursor | 31 | 4,122 tok |
| AvdLee/Swift-Concurrency-Agent-Skill swiftconcurrencycourse.com Add expert Swift Concurrency guidance to your AI coding tool (Agent Skills open format): s | 1,702 | GitHub Copilot | 1 | 1,003 tok |
| hashintel/hash hash.dev 🚀 The open-source, multi-tenant platform for self-building knowledge graphs and simulati | 1,687 | Claude Code, Codex, GitHub Copilot, OpenCode | 22 | 4,677 tok |
| feiskyer/claude-code-settings feisky.xyz Curated skills, sub-agents, and config templates that supercharge Claude Code — research, | 1,674 | Claude Code, GitHub Copilot | 1 | 750 tok |
| pixeltable/pixeltable docs.pixeltable.com The backend agents build with - Multimodal database, orchestration, and serving in one fil | 1,659 | Claude Code, Codex, GitHub Copilot, OpenCode | 13 | 2,327 tok |
| svnscha/mcp-windbg svnscha.de Model Context Protocol for WinDbg. | 1,656 | Claude Code, GitHub Copilot | 2 | 4,221 tok |
| microsoft/hve-core A refined collection of Hypervelocity Engineering components (instructions, prompts, agent | 1,605 | GitHub Copilot | 7 | 14,577 tok |
| yigitkonur/cli-continues resume any AI coding session in another tool — Claude Code, Copilot, Gemini, Codex, Cursor | 1,594 | Claude Code, Codex, GitHub Copilot, OpenCode | 8 | 6,193 tok |
| utkuozdemir/nvidia_gpu_exporter Nvidia GPU exporter for prometheus using nvidia-smi binary OR using NVML | 1,581 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 7,522 tok |
| VersusControl/devops-ai-guidelines versusincident.com First AI Journey for DevOps - with comprehensive learning paths, practical tips, and enter | 1,559 | GitHub Copilot | 1 | 410 tok |
| Azure/data-api-builder aka.ms Data API builder provides modern REST, GraphQL endpoints and MCP tools to your Azure Datab | 1,538 | GitHub Copilot | 1 | 2,070 tok |
| microsoft/ai-dev-gallery An open-source project for Windows developers to learn how to add AI with local models and | 1,517 | GitHub Copilot | 7 | 4,941 tok |
| microsoft/waza microsoft.github.io CLI / Framework for Agent Skills - create, test, measure and improve skill quality and eff | 1,500 | Claude Code, Codex, GitHub Copilot, OpenCode | 24 | 9,437 tok |
| HexmosTech/git-lrc hexmos.com Free, Micro AI Code Reviews That Run on Git Commit | 1,482 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,568 tok |
| inkline/inkline inkline.io Inkline is the intuitive UI Components library that gives you a developer-friendly foundat | 1,469 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 27 | 1,855 tok |
| yohey-w/multi-agent-shogun Samurai-inspired multi-agent system for Claude Code. Orchestrate parallel AI tasks via tmu | 1,422 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 17 | 15,149 tok |
| GanyuanRan/Aegis autoloom.codes Make AI coding agents architecture-aware: baseline-first, evidence-verified, drift-checked | 1,419 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,954 tok |
| justrach/codedb codegraff.com Zig code intelligence server and MCP toolset for AI agents. Fast tree, outline, symbol, se | 1,401 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,709 tok |
| vczh-libraries/Release Release folder of all projects, mainly for GacUI: Native C++ UI library, cross-platform, M | 1,390 | Codex, GitHub Copilot, OpenCode | 8 | 3,915 tok |