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 |
|---|---|---|---|---|
| urule-ai/urule Urule — The open-source coordination layer for AI agents. Deploy, orchestrate, and govern. | 3 | Claude Code, GitHub Copilot, Cursor | 3 | 3,691 tok |
| fluttersdk/ai Teach your AI assistant Wind UI, Magic Framework and more, across every major coding tool. | 3 | Claude Code, GitHub Copilot | 2 | 1,674 tok |
| 2023Anita/clinical-ai-agent-skills Evidence-first AI agent rules for clinicians using Codex, Claude Code, Cursor, Copilot, an | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 966 tok |
| mrzroot/agentforge mrzroot.github.io ⚡ The Universal AI Coding Agent Toolkit & OS. Sync rules across Cursor, Claude Code, Winds | 3 | Claude Code, GitHub Copilot, Cursor, Windsurf | 4 | 1,012 tok |
| ayimmam/PCIC pcic.tech Internal Management tool | 3 | Codex, GitHub Copilot, Cursor, OpenCode | 4 | 1,612 tok |
| omtodkar/librarian AI coding assistant skill for 7 platforms. Turn your project into a searchable knowledge b | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 4,194 tok |
| Da7-Tech/trial Pre-delivery evidence gate for 12 AI coding agents: unsupported completion claims stay pri | 3 | GitHub Copilot | 1 | 657 tok |
| Lzy599775/agent-auto-sci-skills lzy599775.github.io Auto-sci-research: End-to-end research writing, literature reviews, bibliometrics, GIS exp | 3 | Codex, GitHub Copilot, OpenCode | 2 | 2,013 tok |
| vaquarkhan/Fullstack-development-agent-skills Full stack development agent skills are portable packages of instructions, scripts, and re | 3 | Claude Code, Codex, GitHub Copilot, Kiro, OpenCode | 14 | 1,067 tok |
| bitia-srl/bitia-vs-code-copilot-examples AI generated hands-on examples and exercises for learning GitHub Copilot customization in | 3 | GitHub Copilot | 5 | 512 tok |
| selfagency/teamdynamix-mcp teamdynamix-mcp.self.agency 🎟️ TeamDynamix MCP Server (unofficial) | 3 | Claude Code, Codex, GitHub Copilot | 3 | 1,307 tok |
| not-a-feature/evo2-mcp evo2-mcp.readthedocs.io MCP server for generating, scoring and embedding genomic sequences using Evo 2 | 3 | GitHub Copilot | 1 | 230 tok |
| sandraschi/opencode-cli-mcp MCP server that wraps opencode CLI's HTTP API (opencode serve) into MCP tools, plus a weba | 3 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 7 | 1,914 tok |
| luckynee/unity-prefab-parser-mcp | 3 | Codex, GitHub Copilot, OpenCode | 2 | 695 tok |
| Archolith/menhir archolith.dev Provenance, governed context, and code-impact analysis for coding agents. | 3 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 5 | 1,057 tok |
| GaryWenneker/SitecoreMCP A Model Context Protocol (MCP) server that integrates Sitecore CMS with AI assistants like | 3 | GitHub Copilot | 1 | 8,943 tok |
| RandyNorthrup/high-quality-projects-skill Vendor-neutral project discovery, feature delivery, and quality retrofit. Scan and enhance | 3 | Codex, GitHub Copilot, OpenCode | 2 | 1,824 tok |
| agentlint/agentlint agentlint.sh The Lighthouse for AI coding agents. Audit any repo for how ready it is for Claude Code, C | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 3,497 tok |
| sandraschi/leanforge-mcp Lean theorem prover MCP: automated proof search, mathlib integration, job management | 3 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 5 | 3,048 tok |
| Sarks0/mcp-ShellGateway A secure Model Context Protocol (MCP) server that provides Linux shell command execution c | 3 | Claude Code, GitHub Copilot | 2 | 1,413 tok |
| vohongtho/code-intel-platform | 3 | Claude Code, Codex, GitHub Copilot, Kiro, OpenCode, Windsurf | 44 | 9,599 tok |
| Peter-N91/hve-squad-mcp Deployable MCP server that publishes the hve-squad as model-invocable tools over Streamabl | 3 | GitHub Copilot | 1 | 709 tok |
| claimidx/claimidx claimidx.com Prior art for AI agents. Public signed claim index of failures other agents have already p | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 4,342 tok |
| AtlassianPS/JiraAgilePS PowerShell module to interact with Jira's Agile plugin | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 5 | 2,263 tok |
| infra-geo-ouverte/sdg infra-geo-ouverte.github.io Librairie de composantes pour le système de design gouvernemental du Québec | 3 | Claude Code, Codex, GitHub Copilot | 3 | 39 tok |
| JocysCom/SslScanner Scan SSL/TLS certificate and domain expiry dates. | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 8,260 tok |
| zircote/markdown-lsp docs.anthropic.com Claude Code plugin for Markdown development with marksman LSP and markdownlint hooks | 2 | Claude Code, GitHub Copilot | 2 | 397 tok |
| SecondLifes/code-intel Hybrid semantic+keyword code search, RAG chat, and a 17-tool MCP server for Delphi/Pascal | 2 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 50 | 8,454 tok |
| energychain/cernion-energy-tools MicroService Agent System for Energy Markets | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 28 | 5,657 tok |
| Tempguru-co/tempguru-mcp tempguru.co MCP server for W-2 event staffing across 345 US/CA markets: plan_staffing planner, live ra | 2 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 5,547 tok |
| AceDataCloud/ProducerMCP platform.acedata.cloud MCP server for Producer/Riffusion AI music generation via AceDataCloud API | 2 | Claude Code, GitHub Copilot | 2 | 852 tok |
| MakeaMouse/fish-bridge-mcp An economical and fuel(token) efficient AI tool, graph session memory for looong chat sess | 2 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 360 tok |
| MasonChow/source-map-parser-mcp paser source map | 2 | GitHub Copilot | 1 | 1,243 tok |
| Nizoka/pdfnative-mcp pdfnative.dev Official Model Context Protocol (MCP) server for local-first PDF/A generation. Empowers AI | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 13 | 13,245 tok |
| KevinRabun/GDPRShiftLeftMCP GDPR Shift-Left Compliance MCP Server — Azure-focused GDPR compliance automation. | 2 | GitHub Copilot | 2 | 2,030 tok |
| Pakvothe/i1n-cli i1n.ai Localization as code. Push your translation keys, AI translates to 182 languages, pull typ | 2 | GitHub Copilot | 1 | 436 tok |
| barateza/mcp-plesk-dev-docs A unified MCP server that indexes and retrieves Plesk documentation using vector embedding | 2 | Claude Code, Codex, GitHub Copilot | 7 | 2,967 tok |
| benseverndev-oss/goldencheck [Archived] Now part of the Golden Suite monorepo: github.com/benseverndev-oss/goldenmatch | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 6,781 tok |
| orbs-network/spot orbs-network.github.io | 2 | Codex, GitHub Copilot, OpenCode | 2 | 3,476 tok |
| beydemirfurkan/todox todox.dev Working memory for developers and their agents — an agent-first task log with decisions, d | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 7 | 4,287 tok |
| neturely/okffs okffs.g2mk.dev okffs is a Model Context Protocol server for GitHub. Create and manage GitHub issues and p | 2 | Claude Code, GitHub Copilot | 3 | 15,160 tok |
| laffeyp/cascade-img greenrosesystems.com MCP server for LLM-operable Midjourney image generation — compose, generate, inspect with | 2 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 9,467 tok |
| marcelo-ochoa/servers modelcontextprotocol.io Model Context Protocol Servers | 2 | Claude Code, GitHub Copilot | 2 | 2,265 tok |
| xyzzylabs/tc39-mcp mcp.xyzzylabs.ai MCP for the TC39 specs (not affiliated with Ecma/TC39). SHA-pinned ECMA-262 + ECMA-402, AO | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,590 tok |
| nolindnaidoo/regex-le letools.dev Find every regex in a codebase, and report which can be driven into catastrophic backtrack | 2 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode, Windsurf | 6 | 10,210 tok |
| Tommertom/plugwise-mcp Plugwise MCP | 2 | Claude Code, GitHub Copilot | 6 | 5,914 tok |
| can-acar/jarvis JARVIS It’s a zero-friction Model Context Protocol (MCP) server that welds your AI agent t | 2 | GitHub Copilot | 4 | — |
| HuntsDesk/ve-gws workspacemcp.com Google Workspace MCP that actually writes. 28 tools across Docs/Slides/Sheets/Drive — mark | 2 | GitHub Copilot | 1 | 1,123 tok |
| myutex/commit-convention-mcp An MCP server providing commit convention tools and resources. | 2 | GitHub Copilot | 1 | 492 tok |
| mcqua007/agents-skeleton A language-agnostic starter repo for AI-powered development. Single-source-of-truth AGENTS | 2 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 6 | 908 tok |