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 |
|---|---|---|---|---|
| Lapis0x0/obsidian-yolo Agent-native AI assistant — chat, write, whiteboard, learning, all in one. | 1,386 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 2,531 tok |
| IoTSharp/IoTSharp iotsharp.net IoTSharp is an open-source IoT platform for data collection, processing, visualization, an | 1,383 | Codex, GitHub Copilot, OpenCode | 2 | 2,703 tok |
| specstoryai/getspecstory specstory.com Install our local first extensions for your favorite AI IDE or Terminal Agent. Process you | 1,368 | GitHub Copilot | 1 | 295 tok |
| piratuks/invoice-builder Invoice and quotation builder desktop app with PDF export, designed for small businesses a | 1,365 | Claude Code, Codex, GitHub Copilot, OpenCode | 12 | 3,467 tok |
| study8677/repobrain deepwiki.com 🧠 RepoBrain (formerly Antigravity) — Give your repo a brain. ChatGPT for your codebase: w | 1,359 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 385 tok |
| infinispan/infinispan infinispan.org Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store | 1,359 | Codex, GitHub Copilot, OpenCode | 2 | 509 tok |
| sceneview/sceneview sceneview.github.io 3D & AR SDK for Android (Jetpack Compose + Filament), Apple (SwiftUI + RealityKit), Web, F | 1,358 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 6 | 6,073 tok |
| spiculedata/saiku saiku.bi Open-source semantic layer: one cube for Excel (MDX/XMLA), dashboards, and AI agents (MCP) | 1,339 | Claude Code, Codex, GitHub Copilot, OpenCode | 10 | 13,407 tok |
| wprig/wprig wprig.io A modern performance-focused theme development toolkit for WordPress. | 1,334 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,212 tok |
| datalayer/jupyter-mcp-server jupyter-mcp-server.datalayer.tech 🪐 🔧 Model Context Protocol (MCP) Server for Jupyter. | 1,320 | Claude Code, Codex, GitHub Copilot | 2 | 2,265 tok |
| steipete/claude-code-mcp Claude Code as one-shot MCP server to have an agent in your agent. | 1,315 | Claude Code, GitHub Copilot | 2 | 7 tok |
| microsoft/prompty prompty.ai Prompty makes it easy to create, manage, debug, and evaluate LLM prompts for your AI appli | 1,286 | GitHub Copilot | 1 | 14,642 tok |
| AvdLee/Xcode-Build-Optimization-Agent-Skill rocketsim.app An Agent Skill helping you to optimize Xcode incremental and clean builds by running bench | 1,270 | Codex, GitHub Copilot, OpenCode | 2 | 1,265 tok |
| soniqo/speech-swift soniqo.audio AI speech toolkit for Apple Silicon — ASR, TTS, speech-to-speech, VAD, and diarization pow | 1,265 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 5,191 tok |
| ysr666/dsh-vision-router Eyes for text-only DeepSeek Harness agents: built-in free vision chain (no key) + pixel-le | 1,225 | Claude Code, Codex, GitHub Copilot | 3 | 371 tok |
| Azure/azure-mcp aka.ms The Azure MCP Server, bringing the power of Azure to your agents. | 1,223 | GitHub Copilot | 1 | 246 tok |
| hijohnnylin/neuronpedia neuronpedia.org open source interpretability platform 🧠 | 1,206 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 7,332 tok |
| johnpapa/vscode-peacock Subtly change the color of your Visual Studio Code workspace. Ideal when you have multiple | 1,192 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 6,358 tok |
| sipyourdrink-ltd/bernstein bernstein.run The open-source governance layer for AI agents: write the rules declaratively, Bernstein e | 1,190 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,236 tok |
| Azure-Samples/chat-with-your-data-solution-accelerator azure.microsoft.com A Solution Accelerator for the RAG pattern running in Azure, using Azure AI Search for ret | 1,188 | GitHub Copilot | 1 | 8,430 tok |
| Dpro-at/Tel-Agent tel-agent.com AI phone assistant | open-source | 1,183 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 5,932 tok |
| Azure/GPT-RAG aka.ms Enterprise-grade accelerator for agentic RAG on Azure. Built on Microsoft Foundry with Fou | 1,179 | Codex, GitHub Copilot, OpenCode | 6 | 4,111 tok |
| JKorf/Binance.Net cryptoexchange.jkorf.dev C#/.NET client library for the Binance.com cryptocurrency exchange REST and WebSocket APIs | 1,174 | Codex, GitHub Copilot, OpenCode | 2 | 3,029 tok |
| fetchai/innovation-lab-examples innovationlab.fetch.ai 80+ production-ready AI agent examples in Python — build autonomous agents, multi-agent sy | 1,170 | GitHub Copilot | 4 | 434 tok |
| llgcode/draw2d 2D rendering for different output (raster, pdf, svg) | 1,167 | GitHub Copilot | 1 | 1,068 tok |
| mongodb-js/mongodb-mcp-server A Model Context Protocol server to connect to MongoDB databases and MongoDB Atlas Clusters | 1,157 | GitHub Copilot | 1 | 1,576 tok |
| z88dk/z88dk z88dk.org The development kit for over a hundred z80 family machines - c compiler, assembler, linker | 1,154 | Codex, GitHub Copilot, OpenCode | 2 | 3,284 tok |
| EliasOenal/multimon-ng | 1,147 | GitHub Copilot | 5 | 3,936 tok |
| vndee/llm-sandbox vndee.github.io Lightweight and portable LLM sandbox runtime (code interpreter) Python library. | 1,144 | Claude Code, GitHub Copilot | 2 | 4,844 tok |
| community-shaders/skyrim-community-shaders discord.com Community-driven advanced graphics modifications for AE, SE and VR. | 1,140 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,705 tok |
| openmc-dev/openmc docs.openmc.org OpenMC Monte Carlo Code | 1,134 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 4,451 tok |
| microsoft/agentrc Get your repo ready for AI. | 1,121 | Claude Code, Codex, GitHub Copilot, OpenCode | 8 | 1,310 tok |
| frappe/frappe-ui ui.frappe.io The all-in-one toolkit for modern frontends. High-quality components, app recipes and AI-r | 1,104 | Codex, GitHub Copilot, OpenCode | 2 | 938 tok |
| microsoft/Agents aka.ms The Microsoft 365 Agent SDK simplifies building full stack, multichannel, trusted agents f | 1,101 | GitHub Copilot | 1 | 288 tok |
| NVIDIA/cuopt docs.nvidia.com GPU accelerated decision optimization | 1,099 | Codex, GitHub Copilot, OpenCode, Windsurf | 3 | 920 tok |
| FalkorDB/QueryWeaver app.queryweaver.ai An open-source Text2SQL tool that transforms natural language into SQL using graph-powered | 1,090 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 4,912 tok |
| openops-cloud/openops openops.com The batteries-included, No-Code FinOps automation platform, with the AI you trust. | 1,082 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 3,937 tok |
| ChatbotXIO/ChatbotX chatbotx.io Open-source ManyChat alternative, built for AI. Omnichannel marketing across WhatsApp, Tik | 1,080 | Claude Code, Codex, GitHub Copilot, OpenCode | 33 | 7,448 tok |
| MicrosoftDocs/windows-driver-docs learn.microsoft.com The official Windows Driver Kit documentation sources | 1,072 | GitHub Copilot | 1 | 2,058 tok |
| MGdaasLab/WHartTest wharttest.mgdaas.com WHartTest is an AI-driven test automation platform that automates the generation and manag | 1,070 | GitHub Copilot | 1 | 1,629 tok |
| microsoft/lets-learn-mcp-python aka.ms MCP Python Tutorial | 1,066 | GitHub Copilot | 1 | 1,116 tok |
| doccker/cc-use-exp ⛔ No longer maintained → dev-agent-kit/recipes Layered configuration templates that make | 1,060 | Claude Code, GitHub Copilot, Gemini CLI | 26 | 9,683 tok |
| H-mmer/pentest-agents Bug bounty agent framework for Claude Code, Codex, Gemini, Cursor, Windsurf, Copilot, and | 1,059 | Claude Code, Codex, GitHub Copilot, OpenCode | 17 | 63,845 tok |
| borghei/Claude-Skills borghei.github.io 385 AI skills, 76 expert agents, and 906 stdlib Python tools for every team: engineering, | 1,051 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode, Windsurf | 9 | 10,643 tok |
| galkahana/PDF-Writer pdfhummus.com High performance library for creating, modiyfing and parsing PDF files in C++ | 1,029 | Claude Code, GitHub Copilot | 3 | 2,896 tok |
| beita6969/ScienceClaw scienceclaw.science Verifiable program-level self-evolution for AI-for-Science agents: Skills and typed Operat | 1,025 | GitHub Copilot | 1 | 574 tok |
| SafeAI-Lab-X/ClawKeeper ClawKeeper: Comprehensive Safety Protection for OpenClaw Agents Through Skills, Plugins, a | 1,019 | GitHub Copilot | 1 | 574 tok |
| ChiR24/Unreal_mcp enginewire.dev A comprehensive Model Context Protocol (MCP) server that enables AI assistants to control | 1,014 | Codex, GitHub Copilot, OpenCode | 2 | 5,879 tok |
| MadAppGang/claudish claudish.com Claude Code. Any Model. The most powerful AI coding agent now speaks every language. | 1,013 | Claude Code, Codex, GitHub Copilot, OpenCode | 7 | 8,797 tok |
| sirkirby/unifi-mcp unifimcp.com MCP servers & Graph API for the UniFi suite of applications, Network, Protect, and Access | 1,008 | Claude Code, Codex, GitHub Copilot, OpenCode | 16 | 6,773 tok |