3,543 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 agents7,521Claude Code6,606Data and AI3,688Backend and APIs3,494Languages3,401Planning3,209Git and workflow3,151Code review2,736Memory and context2,361Testing2,351DevOps and cloud2,300Writing and docs2,297Research2,295Frontend2,250Security2,004Productivity1,709
All Claude Code32,117 Codex23,281 OpenCode22,054 GitHub Copilot3,543 Gemini CLI1,915 Cursor1,736 Windsurf119 Kiro77
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| u9401066/template-is-all-you-need AI-assisted development project template with Claude Skills, Memory Bank, and Constitution | 3 | GitHub Copilot | 1 | 3,378 tok |
| tasktimepro/tasktime tasktime.pro Agent-ready local-first tasks, time tracking, expenses, and invoicing for freelancers. | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 16 | 4,386 tok |
| JZKK720/cubecloud-skills-bundle-kit One-command setup for a full VS Code Copilot Chat agent-skills stack on Windows - 144 skil | 3 | Codex, GitHub Copilot, OpenCode | 2 | 455 tok |
| yurakawa/mskills npmjs.com mskills is a CLI tool to manage "Agent Skills" for various AI agents. | 3 | Codex, GitHub Copilot, OpenCode | 5 | 3,477 tok |
| emilianoeloi/ios-WK-UI-WebView 🦖 The COBOL of Apple: a battle-tested Objective-C UIWebView/WKWebView legacy lab — loving | 3 | Codex, GitHub Copilot, OpenCode | 3 | 1,506 tok |
| kunalsuri/ai-fication-kit AI-Fication Kit: A Simple & Elegant Way for Making any Codebase AI-native through Scaffold | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,338 tok |
| Heretyc/subagent-mcp npmjs.com subagent-mcp is an MCP stdio server that turns an AI coding assistant (Claude Code, Codex, | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 9,043 tok |
| punt-labs/quarry Locally hosted semantic search for AI agents. 20+ document formats, hybrid search, agent m | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 11,144 tok |
| punt-labs/vox Speech for Claude Code and friends: Text-to-speech CLI, MCP server, and Claude Code plugi | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 8,526 tok |
| ncaq/konoka AI prompts, agents, and skills as loadable plugins. | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 1,369 tok |
| stdin/buy-vs-build Stop AI coding agents from adding dependency and build ownership without a decision note. | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 2,240 tok |
| apervashov/typescript-learning-assistant apervashov.github.io Learn TypeScript with Handbook-aligned exercises, a local progress tracker, and AI mentor | 3 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 2,660 tok |
| Wittlesus/cursorrules-pro wittlesus.github.io Professional .cursorrules configs for 8 popular stacks. Works with Cursor, Cline, Claude C | 3 | Claude Code, GitHub Copilot | 2 | 2,243 tok |
| mvtandas/wordpress-claude-stack Drop-in AI coding setup for WordPress developers — CLAUDE.md + .cursorrules + Copilot inst | 3 | Claude Code, GitHub Copilot, Cursor | 3 | 2,590 tok |
| zircote/markdown-lsp docs.anthropic.com Claude Code plugin for Markdown development with marksman LSP and markdownlint hooks | 3 | Claude Code, GitHub Copilot | 2 | 397 tok |
| juwonllee2024-dotcom/rulesync The ESLint & Babel for AI Agent Rules — Compile, lint, optimize, and sync instructions acr | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 645 tok |
| semanticash/cli semantica.sh Semantica makes AI code provenance, attribution, and semantic lineage visible across commi | 3 | GitHub Copilot | 1 | 309 tok |
| Institut-du-Numerique-Responsable/skill-nr institut-du-numerique-responsable.github.io 🌱 Eco-design rules (RGESN, GR491, Opquast, RGAA) for 11 AI coding assistants — Continue, | 3 | GitHub Copilot | 15 | 9,486 tok |
| infotradescout/Selective-Intelligence infotradescout.github.io Selective Intelligence turns minimal intent into grounded, token-efficient AI work: resear | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 999 tok |
| SathiaAI/graphsmith graphsmith.ai Build AI agent workflows that survive crashes, never duplicate work, and don't make things | 3 | Codex, GitHub Copilot, OpenCode | 2 | 4,786 tok |
| taberoajorge/loopforge Desktop AI loop orchestrator that drives open source coding CLIs (Claude Code, Codex, Curs | 3 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 15 | 2,917 tok |
| HuskyDanny/OnPoint Big idea first, then fewer words, then less code. One switch for 12+ AI coding agents — me | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 9,020 tok |
| dbsanfte/topdesk-mcp An MCP server for the TopDesk ticketing system | 3 | GitHub Copilot | 1 | 113 tok |
| syedasad-kiwi/mongodb-mcp-bridge A powerful Model Context Protocol (MCP) server implementation for MongoDB integration | 3 | GitHub Copilot | 1 | 188 tok |
| xsolla/xsolla-ai-kit xsolla.com Xsolla agent skills for AI coding tools — Claude Code, Copilot, Codex CLI, Windsurf and mo | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,733 tok |
| barrosohub/frontend-stack-blueprint Canonical frontend stack blueprint for AI coding agents: TypeScript, React, Vite, Vitest, | 3 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 5 | 6,864 tok |
| SyntaxWay/agent-ready-repo | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 6 | 1,616 tok |
| GlacierXiaowei/structured-learning-skill Structured Learning Skill - The first AI teaching skill with **dual-mode switching**. Conc | 3 | GitHub Copilot | 1 | 573 tok |
| YixuanYang00/math-beamer-slides-skill A skill for creating, compiling, reviewing, and polishing rigorous mathematical Beamer/LaT | 3 | GitHub Copilot | 2 | 2,139 tok |
| Lucabiz/agentscribe One source of truth for your AI agent instructions — generate and validate AGENTS.md, CLAU | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,819 tok |
| jim-schilling/splurge-ai-rules Splurge Cursor AI Rules | 3 | GitHub Copilot | 1 | 3,215 tok |
| tecnomanu/agent-rules-kit-mcp MCP Server for Agent Rules Kit - Tools for agent rules management | 3 | GitHub Copilot | 1 | 3,784 tok |
| tommyvo/useful-prompts A collection of useful prompts to use for coding. | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 2 | 4,898 tok |
| oculus-samples/Unity-VirtualCameraPublisher A Sample Project for the Virtual Camera Publisher API in Unity | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 6 | 1,080 tok |
| weteach-app/copilot Example of instructions and agents that can be used with GitHub Copilot | 3 | Claude Code, Codex, GitHub Copilot | 14 | 15,227 tok |
| S13G/engineering-standards-plugin Cross-domain software engineering standard principles for AI coding agents (Claude Code, C | 3 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 3,971 tok |
| DrozmotiX/ioBroker-Copilot-Instructions | 3 | GitHub Copilot | 1 | 1,791 tok |
| synthable/copilot-instructions-cli A modular CLI for building, layering, and managing powerful instruction sets for GitHub Co | 3 | GitHub Copilot | 1 | 520 tok |
| WenBin6/thesis-md-word-workflow A standard SOP skill for quickly drafting papers with AI tools, which can be combined with | 3 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 1,153 tok |
| TypeFox/Coding.Waterkant.2025 Project for Coding.Waterkant 2025 | 3 | GitHub Copilot | 1 | 1,514 tok |
| RajanChavada/Rosetta CLI tool that scaffolds and syncs agentic AI rules/skills across distinct and fragmented I | 3 | Claude Code, GitHub Copilot, Cursor | 3 | 1,849 tok |
| jamestorrevillas/dev-skills A modular AI skill library for software engineers. 37 SKILL.md files covering technical, s | 3 | GitHub Copilot | 1 | 1,484 tok |
| SecondLifes/delphi-expert An opinionated ecosystem of rules, skills and steerings to elevate Delphi development to s | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 11,182 tok |
| humzakt/dev-starter-kit Production-ready starter repository with CI/CD workflows, issue templates, incident runboo | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,704 tok |
| sarkarsaurabh27/agent-loop-learning Reference library and skill toolkit for auditing, reviewing, and improving LLM-based agent | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 2,833 tok |
| SJTU-YONGFU-RESEARCH-GRP/open-verilog-workbench This directory configures how issues, instructions, and AI assistants (Copilot/agents) beh | 3 | GitHub Copilot | 1 | 1,908 tok |
| hyperpolymath/boj-server hyperpolymath.github.io One MCP stdio endpoint for a whole toolchain — GitHub, GitLab, cloud, mail, browser and re | 3 | GitHub Copilot | 1 | 510 tok |
| maxmash1/dotnet-react-starter-demo A .NET 8 + React 18 template app pre-configured with GitHub Copilot customizations (agents | 3 | GitHub Copilot | 1 | 3,962 tok |
| abhishekrai43/VulScan-MCP marketplace.visualstudio.com Security vulnerability scanner for VS Code. Scans dependencies for CVEs from NVD/OSV datab | 3 | GitHub Copilot | 1 | 833 tok |
| nam20485/agent-instructions Custom instructions "pseudocode scripting" framework used by GitHub Copilot, Gemini Code A | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,883 tok |