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 |
|---|---|---|---|---|
| tallclub/matimo matimo.dev Policy-governed tool execution for AI agents. One YAML tool definition for Python, TypeScr | 18 | Claude Code, Codex, GitHub Copilot, OpenCode | 15 | 13,898 tok |
| atopile/packages packages.atopile.io First-party packages 📦 from atopile | 18 | Claude Code, GitHub Copilot | 2 | 10,286 tok |
| adcontextprotocol/adcp-client adcontextprotocol.github.io A Typescript SDK for the AdCP protocol (client and server) | 18 | Claude Code, Codex, GitHub Copilot, OpenCode | 37 | 12,682 tok |
| c18229039407-arch/cutlin Cutlin - AI-Orchestrated Video Production Platform | 17 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 271 tok |
| omar-A-hassan/medsci-agent Biomedical research agent with 28 MCP tools powered by MedGemma, TxGemma and OpenCode | 17 | Claude Code, GitHub Copilot, OpenCode | 25 | 907 tok |
| vtex-apps/admin-pages The VTEX Pages CMS Admin | 17 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,422 tok |
| paullukic/coograph coograph.com Save your tokens! | 17 | Claude Code, Codex, GitHub Copilot, OpenCode | 43 | 6,256 tok |
| organvm-iv-taxis/a-i--skills organvm-iv-taxis.github.io Public repository of AI agent skills: specialized capabilities and workflows across 12 cat | 17 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 8 | 8,740 tok |
| AceDataCloud/Skills Agent Skills for AceDataCloud AI services — music, image, video generation, web search, an | 17 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 628 tok |
| d4rkNinja/arcforge arcforge.infynon.com Production architecture decisions your AI coding agent can explain, challenge, and prove. | 17 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,072 tok |
| kasuken/github-copilot-superpowers Opinionated, repo-local configuration for GitHub Copilot (Chat + Agent mode): instruction | 17 | Claude Code, Codex, GitHub Copilot | 15 | 5,040 tok |
| datht-work/safeai-global-agent SafeAI-Global Compliance Suite 🛡️ Building globally compliant software is slow, expensive | 17 | GitHub Copilot | 1 | 1,002 tok |
| Mark7766/ai-coding-ok Helps you code with AI like an experienced developer, solving issues with poor AI-generate | 17 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,374 tok |
| Mofesto/fubon-api-mcp-server | 17 | Claude Code, Codex, GitHub Copilot, OpenCode | 18 | 5,373 tok |
| Emily2040/rapid-domain-mastery A universal Agent Skill for deep, multi-source learning across 18+ AI coding agents | 17 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 5 | 872 tok |
| aixolotl/microsoft-planner-mcp Unofficial MCP server for Microsoft Planner using Microsoft Graph and Entra ID delegated a | 17 | GitHub Copilot | 4 | 2,877 tok |
| Guing/xhs-downloader-skill A Xiaohongshu (Xiaohongshu/Red) content download Skill supporting multiple AI coding assis | 17 | GitHub Copilot | 1 | 1,051 tok |
| klodr/gmail-mcp Gmail MCP server — scope-gated tools (readonly / send / modify), path jails for attachment | 17 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,076 tok |
| Lians-ai/Lians lians.ai Evidence-backed proof of done for Claude Code, Codex, Cursor, and other AI coding agents. | 17 | GitHub Copilot | 1 | 285 tok |
| jasonhnd/design-md-generator Generate publication-quality DESIGN.md files from any website URL. Extract computed styles | 17 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 2,427 tok |
| AceDataCloud/MidjourneyMCP MCP server for Midjourney image generation through Ace Data Cloud. | 17 | Claude Code, GitHub Copilot | 2 | 871 tok |
| Indium-AI-Labs/indium-agentkit indium-agentkit is a distribution scaffold for sharing AI coding-agent skills, subagents, | 17 | Codex, GitHub Copilot, OpenCode, Windsurf | 3 | 11,470 tok |
| thoreinstein/aix thoreinstein.github.io A unified CLI for managing AI coding assistant configurations across platforms. | 16 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 3 | 4,455 tok |
| jonlwowski012/copilot-agent-factory Transform any codebase into an AI-powered development environment by automatically detecti | 16 | Claude Code, GitHub Copilot | 17 | 6,065 tok |
| Mallikarjun-Roddannavar/ai-testcase-generator-mcp An Model Context Protocol(MCP) server that generates comprehensive API test cases (positiv | 16 | GitHub Copilot | 1 | 629 tok |
| CarlDog/openchronicle-mcp Memory database for LLM agents — persistent keyword + optional semantic memory, project na | 16 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 22,690 tok |
| lastingyeh/github-copilot-doc provide the github instructions and promptings | 16 | GitHub Copilot | 5 | 5,000 tok |
| Sperax/sperax-crypto-mcp MCP server and plugin for Sperax Protocol – USDs, SPA, veSPA & Demeter on Arbitrum and BNB | 16 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 755 tok |
| Data-Everything/MCP-Platform data-everything.github.io A flexible platform that provides Docker & Kubernetes backends, a lightweight CLI (mcpt), | 16 | GitHub Copilot | 1 | 2,374 tok |
| DyanGalih/spec-kit-memory-hub Repository-native persistent memory hub for Spec Kit, powered by an SQLite caching optimiz | 16 | GitHub Copilot | 1 | 662 tok |
| HolobiomicsLab/asb-skill-collections holobiomicslab.github.io Evidence-grounded skills and software-tool records for scientific AI agents, distilled fro | 16 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,915 tok |
| zauberzeug/nicegui-template A copier template for a basic NiceGUI project | 16 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 48 tok |
| Godzilla675/dark-premium-landing-style A reusable AI skill for building premium, dark-themed, Apple-inspired landing pages | 16 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 7,275 tok |
| mick-gsk/drift mick-gsk.github.io Claude Code plugin that tells your agent when it is about to build something that already | 16 | Claude Code, GitHub Copilot | 58 | 13,772 tok |
| WFord26/BetTrack FastMCP server providing sports betting odds and ESPN data to Claude Desktop. Features pla | 16 | Claude Code, GitHub Copilot | 3 | 8,113 tok |
| gamedevpl/www.gamedev.pl gamedev.pl Point Claude Code, Cursor, or any MCP-capable agent at this server and it builds a real, p | 16 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 12 | 5,144 tok |
| PramodDutta/AdvancePlaywrightFramework1x | 16 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 1,662 tok |
| rachmataditiya/odoo-rust-mcp Odoo MCP Server - Model Context Protocol server for Odoo ERP integration. Supports Odoo 14 | 16 | GitHub Copilot | 1 | 2,780 tok |
| swigerb/squad-pod Pixel art office where your Squad AI agents come to life as animated characters — adapted | 16 | GitHub Copilot | 1 | 1,169 tok |
| linuxfoundation/lfx-self-serve linuxfoundation.github.io LFX Self Serve UI | 16 | Claude Code, Codex, GitHub Copilot, OpenCode | 18 | 5,723 tok |
| hyeongchankim/poneytail | 16 | Codex, GitHub Copilot, OpenCode | 2 | 1,121 tok |
| hannsxpeter/humanizer Pure-prompt Agent Skill that de-slops AI-sounding prose, rewrites it in a writer's own voi | 16 | Codex, GitHub Copilot, Gemini CLI, OpenCode | 3 | 1,430 tok |
| vorcyc/Vorcyc.Mathematics A high performance , navie managed code math library. | 16 | GitHub Copilot | 1 | 29 tok |
| Cloud-Solutions-International/antikythera Automated test generation for spring apps | 16 | Codex, GitHub Copilot, Cursor, OpenCode | 3 | 896 tok |
| daochild/agents-config Agents config for development | 16 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 4,074 tok |
| OpenDigitalProductFactory/opendigitalproductfactory This is the official open digital product factory | 15 | Claude Code, Codex, GitHub Copilot, OpenCode | 14 | 2,674 tok |
| NiclasOlofsson/dbt-core-mcp dbt Core MCP Server: Interact with dbt projects via Model Context Protocol | 15 | GitHub Copilot | 4 | 8,657 tok |
| CsabaKovacs/rulesmith Local-first CLI + MCP server that maps repositories and generates evidence-backed AI agent | 15 | Claude Code, Codex, GitHub Copilot, OpenCode | 11 | 4,962 tok |
| barvhaim/remy-mcp A Model Context Protocol (MCP) server that provides programmatic access to Israeli Land Au | 15 | Claude Code, GitHub Copilot | 2 | 3,241 tok |
| Hackbyrd/orbital-express A better way to organize and develop on your Express.js Node.js application. Built for dev | 15 | Claude Code, Codex, GitHub Copilot, OpenCode | 24 | 3,514 tok |