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 |
|---|---|---|---|---|
| kasuken/vscode-copilot-insights marketplace.visualstudio.com Understand your GitHub Copilot plan, quotas, and limits at a glance | 37 | Claude Code, GitHub Copilot | 3 | 1,100 tok |
| TheGreenCedar/CodeStory CodeStory is a codebase grounding engine that preindexes code into a knowledge graph and e | 37 | Codex, GitHub Copilot, OpenCode | 2 | 5,313 tok |
| nirholas/defi-agents sperax.click DeFi agent definitions JSON API + MCP - Production-ready agents for Web3, crypto trading, | 37 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 708 tok |
| jongalloway/dotnet-mcp MCP wrapper for the .NET SDK | 37 | GitHub Copilot | 1 | 4,030 tok |
| gavinmcfall/home-ops HomeOps driven by Kubernetes and GitOps using Flux | 37 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 4,360 tok |
| ai-ecoverse/slicc sliccy.com A browser-native AI agent (claw) for everyone that loves ice cream | 37 | Claude Code, Codex, GitHub Copilot, OpenCode | 13 | 3,682 tok |
| Sitecore/content-sdk The Content SDK to support building sites with SitecoreAI | 37 | Claude Code, Codex, GitHub Copilot, OpenCode, Windsurf | 5 | 1,877 tok |
| gtfodevs/autonomo gtfodevs.github.io Tired of 'it works' lies? Autonomo MCP makes your AI prove it—on real hardware, right in y | 36 | GitHub Copilot | 1 | 442 tok |
| FutureRootsDE/legal-audit-de Claude Code plugin for German/EU legal audits (DSGVO, TDDDG, UWG, AI Act, etc.). Not legal | 36 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 7,274 tok |
| oculus-samples/Unity-PerformanceSettings Performance settings testing ground, showing how to use game-engine-agnostic performance c | 36 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 6 | 1,044 tok |
| tecnomanu/agent-rules-kit Bootstrap of Cursor rules (.mdc) and mirror documentation (.md) for AI agent-guided projec | 36 | Codex, GitHub Copilot, OpenCode | 2 | 5,682 tok |
| KhaledSaeed18/node-express-boilerplate Production-ready Express + TypeScript backend boilerplate with clean layered architecture, | 36 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode, Windsurf | 6 | 1,536 tok |
| ConnorBritain/mssql-mcp-server Enterprise MCP server for SQL Server with 20 tools for schema discovery, data operations, | 36 | Claude Code, GitHub Copilot | 2 | 1,802 tok |
| RafaelGorski/Problem-Based-SRS rafaelgorski.github.io An Agent Skill to use Problem-Based Software Requirements Specification (SRS) method in yo | 36 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 12,019 tok |
| CrowdStrike/foundry-skills crowdstrike.com AI coding assistant skills for building CrowdStrike Falcon Foundry apps: scaffolding, depl | 36 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 3,265 tok |
| riseup-oss/mcp Official MCP server for RiseUp — programmatic read-only access to your cashflow data | 36 | GitHub Copilot | 1 | 1,123 tok |
| proompteng/bilig proompteng.github.io Formula workbooks for Node services: edit inputs, recalculate formulas, read outputs, pers | 35 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 5,614 tok |
| nirholas/extract-llms-docs llm.energy Extract documentation for AI agents from any site with llms.txt support. Features MCP serv | 35 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 722 tok |
| tosin2013/mcp-adr-analysis-server tosin2013.github.io Your ADRs are lying to you. MCP server with live drift detection, content safety, and deci | 35 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 28 | 3,723 tok |
| arvindand/maven-tools-mcp dev.to MCP server providing AI assistants with Maven Central dependency intelligence for all JVM | 35 | Claude Code, GitHub Copilot | 7 | — |
| nirholas/bnbchain-mcp bnbchain-mcp.modelcontextprotocol.name Developer tools for AI crypto agents 🛠️ Build apps with DeFi trading, DEX swaps, smart c | 35 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 7,816 tok |
| agent-next/agent-ready agent-ready.org Codebase readiness scoring for autonomous agents — measurable operability standards beyond | 35 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 2,068 tok |
| salmanashraf/mobile-ai-agents play.google.com Mobile AI Skills, Agents and workflow to help you build mobile apps and games faster. A co | 35 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 7,709 tok |
| Thepizzapie/BuildersGate Agentic game development for building games with AI Agents. Run one session per seat: art, | 35 | Claude Code, GitHub Copilot | 2 | 3,040 tok |
| RuiRomano/powerbi-agentic-mcp-cloud-agent | 35 | Claude Code, Codex, GitHub Copilot | 4 | 345 tok |
| Thunder-Compute/thunder-cli Official CLI of Thunder Compute | 34 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 5 | 1,489 tok |
| MarcSkovMadsen/holoviz-mcp marcskovmadsen.github.io ✨A MCP server that provides intelligent access to the HoloViz ecosystem for humans and AIs | 34 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 5,422 tok |
| TheDigitalNinja/mcp-fitbit thedigital.ninja Give your AI assistant access to your Fitbit data for personalized health insights, trend | 34 | Claude Code, GitHub Copilot | 2 | 2,104 tok |
| nirholas/github-to-mcp github-to-mcp.modelcontextprotocol.name Convert GitHub repositories to MCP servers automatically. Extract tools from OpenAPI, Grap | 34 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 872 tok |
| martysama0134/m2ui-skill AI coding skill for generating and modifying Metin2 client UI code from screenshots, descr | 34 | Codex, GitHub Copilot, Gemini CLI, OpenCode | 3 | 3,656 tok |
| matt-goldman/blake A static site generator inspired by Occam's Blazor | 34 | GitHub Copilot | 1 | 2,059 tok |
| Erikote04/Swift-API-Design-Guidelines-Agent-Skill Swift API Design Guidelines Agent Skill for AI coding tools that support the Agent Skills | 33 | Codex, GitHub Copilot, OpenCode | 2 | 1,478 tok |
| possible055/relace-mcp Unofficial Relace MCP client with AI features. Personal project; not affiliated with or en | 33 | GitHub Copilot | 1 | 1,507 tok |
| oculus-samples/Unity-MetaXRAudioSDK This project contains Unity samples for Meta's Presence Platform Audio SDK. The Oculus SDK | 33 | Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 998 tok |
| Azure-Samples/pizza-mcp-agents Serverless API and Model Context Protocol (MCP) integration to order pizzas from AI agents | 33 | GitHub Copilot | 4 | 714 tok |
| mattv8/ragtime Self-hosted, OpenAI-compatible RAG API + MCP server that plugs local knowledge into existi | 33 | GitHub Copilot | 5 | 11,079 tok |
| micheltlutz/dev-challenge micheltlutz.me Repository with technical challenges for front-end, back-end and mobile | 33 | Claude Code, Codex, GitHub Copilot, OpenCode | 12 | 3,095 tok |
| microsoftgbb/project-nighthawk Nighthawk — AI-powered deep technical research pipeline for Azure Kubernetes Service (AKS) | 33 | Claude Code, Codex, GitHub Copilot | 10 | 513 tok |
| dynatrace-oss/dynatrace-managed-mcp An MCP server for self-hosted Dynatrace Managed platform | 33 | Claude Code, GitHub Copilot | 2 | 2,151 tok |
| nicolasmelo1/software-factory A method for building software with agents, packaged as a single binary. Every rule that m | 33 | Codex, GitHub Copilot, OpenCode | 2 | 2,373 tok |
| sandraschi/freecad-mcp FreeCAD 3D CAD automation via FastMCP — headless document/export plus FluidX3D/OpenFOAM CF | 33 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 6 | 1,714 tok |
| modxcms-jp/evolution-jp modx.jp | 33 | Claude Code, Codex, GitHub Copilot, OpenCode | 22 | 3,883 tok |
| hashimiche/hal Hashicorp Academy Labs | 33 | GitHub Copilot | 1 | 2,090 tok |
| asynkron/asynkron-skills ASYNKRON developer tools skills — profiler, test runner, code duplication detector, and li | 32 | Codex, GitHub Copilot, OpenCode | 2 | 1,111 tok |
| tbdavid2019/openclaw-docs-skill Automatically updated daily, giving your LLM the ability to handle OpenClaw issues. This i | 32 | Claude Code, Codex, GitHub Copilot | 8 | — |
| CharlieDigital/runjs The only MCP server you need: let your LLM generate and safely execute JavaScript -- inclu | 32 | GitHub Copilot | 1 | 527 tok |
| prakrititz/relayBrain relay-brain.vercel.app Coordination and context layer for AI coding agents. Shared file locks, live patch sync, a | 32 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 5 | 3,003 tok |
| nirholas/lyra-tool-discovery lyra-tool-discovery.modelcontextprotocol.name AI powered automation toolkit which acts as an agent that discovers MCP servers for you. P | 32 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 813 tok |
| samilozturk/agentlint npmjs.com ESLint for your coding agents. Keep AGENTS.md, rules, and skills structured, current, and | 32 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,913 tok |
| nirholas/crypto-market-data crypto-market-data.modelcontextprotocol.name Live cryptocurrency and DeFi market data. Simple, easy, straight to the point. Market dat | 32 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 795 tok |