1,724 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 agents7,374Claude Code6,573Data and AI3,706Backend and APIs3,486Languages3,398Planning3,181Git and workflow3,100Code review2,701Memory and context2,354Testing2,311Research2,292DevOps and cloud2,282Writing and docs2,269Frontend2,250Security1,980Productivity1,695
All Claude Code32,004 Codex23,112 OpenCode21,881 GitHub Copilot3,501 Gemini CLI1,902 Cursor1,724 Windsurf62 Kiro40
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| SAP/fundamental-ngx sap.github.io Fundamental Library for Angular is SAP Design System Angular component library | 294 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 18 | 5,983 tok |
| amxv/mcp-manager mcp-manager.ashray.xyz simple web ui to manage mcp (model context protocol) servers in the claude app | 292 | Cursor | 1 | 100 tok |
| fstandhartinger/ralph-wiggum Ralph Wiggum: Autonomous AI coding with spec-driven development. Point your AI agent here | 292 | Claude Code, Codex, Cursor, OpenCode | 5 | 324 tok |
| ivo-toby/mcp-openapi-server MCP Server (Model Context Protocol) for turning OpenAPI specifications into a MCP Resource | 290 | Claude Code, Codex, Cursor, OpenCode | 8 | 2,074 tok |
| chmonitor/chmonitor chmonitor.dev Open-source operational advisor for ClickHouse — real-time monitoring plus AI-driven index | 287 | Claude Code, Codex, Cursor, OpenCode | 55 | 10,436 tok |
| Kele-Bingtang/teek-design-vue3 vue3-design.teek.top Teek is a visually polished, feature-rich, out-of-the-box enterprise administration system | 277 | Cursor | 1 | 977 tok |
| shangyankeji/super-dev superdev.goder.ai Engineering workflow layer for AI coding tools with specs, review, quality gates, and trac | 274 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 9 | 11,166 tok |
| H4D3ZS/vscodium-rust cyberifrit.xyz AI-native IDE with agentic workflows, iPhone emulation on Windows/Linux, PyTorch ML Studi | 251 | Cursor | 1 | 344 tok |
| soundcloud/api A public repo for our Developer Community to engage about bugs and feature requests on our | 250 | Cursor | 3 | — |
| vendelieu/telegram-bot vendelieu.github.io Telegram Bot API wrapper with handy Kotlin DSL. | 248 | Codex, Cursor, OpenCode | 15 | 381 tok |
| EmpiricaAI/empirica getempirica.com Make AI agents and AI workflows measurably reliable. Epistemic measurement, Noetic RAG, | 246 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 3 | 6,962 tok |
| enuno/unifi-mcp-server An MCP server that leverages official UniFi API | 245 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 45 | 13,687 tok |
| zhixiaoqiang/antd-components-mcp npmjs.com An MCP service for querying Ant Design components that reduces hallucinations in component | 244 | Claude Code, Codex, Cursor, OpenCode | 4 | 143 tok |
| nalu-development/nalu nalu-development.github.io Provides .NET MAUI packages to help with everyday challenges | 242 | Claude Code, Cursor | 7 | 2,750 tok |
| ericzakariasson/uber-eats-mcp-server | 236 | Cursor | 1 | 17 tok |
| ProgrammerAnthony/Expert-Coding-Harness Production-grade AI Agent skill set supporting AI Harness applications in enterprise devel | 236 | Claude Code, Cursor | 25 | — |
| responsibleai/ASSERT responsibleai.github.io Requirement-driven evaluation harness for AI agents and LLM applications. Generate behavio | 236 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 7 | 6,087 tok |
| DemonDamon/AgenticX agxbuilder.com AgenticX is a unified, production-ready multi-agent platform — Python SDK + CLI (agx) + St | 228 | Claude Code, Codex, Cursor, OpenCode | 4 | 23,011 tok |
| GoogleCloudPlatform/race-condition developers.google.com The open source multi-agent simulation from the Developer Keynote at Google Cloud Next '26 | 227 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 2,675 tok |
| antdigital-ai/agentic-ui agentic.antdigital.ai | 224 | Codex, Cursor, OpenCode | 24 | 9,544 tok |
| idolaman/galactic galactic-dev.com The command center to ship 10x faster with a parallel Claude Code fleet, featuring isolate | 224 | Claude Code, Cursor | 2 | 2,360 tok |
| TentacleOpera/switchboard Switchboard plugin for VS Code, enables subscription-based AI agent teams | 214 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 5 | 10,991 tok |
| team-telnyx/ai Official one-stop shop for AI Agents and developers building with Telnyx. | 212 | Claude Code, Codex, Cursor, OpenCode | 2 | 2,810 tok |
| zwgnr/BaseLayer baselayer.dev Re-usable multi part components built on React Aria and TailwindCSS. | 205 | Cursor | 1 | 12 tok |
| NotePlan/plugins The main NotePlan repository, which contains the source code for all NotePlan plugins. If | 204 | Claude Code, Cursor | 4 | 1,050 tok |
| wasp-lang/vibe-coding-video env-budget-video-app-client.fly.dev Vibe Coding Full-stack App Starter Template | 192 | Cursor | 1 | 3,052 tok |
| hexianWeb/Third-Person-MC third-person-mc.vercel.app Three.js web version Minecraft in browser | 190 | Claude Code, Codex, Cursor, OpenCode | 15 | 2,908 tok |
| peltmonger/stardrive astro-stardrive.com The Astro boilerplate to create super stable and fast websites in the AI age | 187 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 5 | 3,374 tok |
| janekbaraniewski/openusage openusage.sh The one dashboard you’ve been looking for — track spend and usage across Claude, Cursor, O | 187 | Claude Code, Codex, Cursor, OpenCode | 32 | 4,013 tok |
| thalysjuvenal/advpl-specialist thalysjuvenal.github.io Plugin para Claude Code especializado em ADVPL e TLPP para desenvolvimento TOTVS Protheus | 186 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 17 | 2,354 tok |
| justxor/pythonroamap2026 A complete roadmap for learning Python in 2026 | 181 | Claude Code, Cursor | 2 | 2,025 tok |
| T1nker-1220/UltraContextAI portfolio-marquez.vercel.app Hire/Contact me: [email protected] https://forum.cursor.com/t/rules-for-u | 181 | Cursor | 1 | 2,153 tok |
| iPythoning/b2b-sdr-agent-template pulseagent.io Open-source AI SDR template for B2B export. 10-stage sales pipeline, 10 cron jobs, 4-engin | 173 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 1,153 tok |
| LAVARONG/wechat-automation-api Automated message-sending service for WeChat on Windows (supports version 4.0+). An HTTP A | 171 | Cursor | 1 | 1,727 tok |
| coyvalyss1/model-matchmaker Local hook for Cursor and Claude Code that routes prompts to the right model tier. Stop pa | 168 | Cursor | 1 | 1,515 tok |
| bbartling/open-fdd Fault Detection Diagnostics (FDD) for HVAC datasets | 163 | Claude Code, Codex, Cursor, OpenCode | 16 | 4,036 tok |
| Alex8791-cyber/cognithor cognithor.ai Cognithor · Agent OS: Local-first autonomous agent operating system. 19 LLM providers, 18 | 154 | Claude Code, Cursor | 2 | 2,552 tok |
| Iron-Ham/XcodePreviews | 151 | Claude Code, Codex, Cursor | 5 | 695 tok |
| equinor/neqsim equinor.github.io NeqSim is a library for calculation of fluid behavior, phase equilibrium and process simul | 150 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 6 | 34,717 tok |
| wellwelwel/lagune lagune.ai 🌊 Lagune is your security copilot as you build, your Blue Team when you audit, whether yo | 147 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 2,636 tok |
| getmockd/mockd mockd.io High-performance, multi-protocol mock server. HTTP, WebSocket, gRPC, MQTT, SSE, GraphQL, S | 144 | Claude Code, GitHub Copilot, Cursor | 3 | 4,525 tok |
| NickCirv/engram The context spine that 10x's every AI coding session. Live in 8 IDEs (Claude Code, Cursor, | 141 | Claude Code, Cursor | 2 | 1,893 tok |
| iamtouchskyer/memex Zettelkasten-based persistent memory for AI coding agents. Works with Claude Code, Cursor, | 141 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 4 | 6,440 tok |
| SeardnaSchmid/markdown-inline-editor-vscode VS Code extension · inline markdown · WYSIWYG · GFM · LaTeX · Mermaid · task lists | 141 | Claude Code, Codex, Cursor, OpenCode | 4 | 3,341 tok |
| KyaniteLabs/kinocut kinocut.dev Guardrailed video editing MCP server for AI agents. FFmpeg, Hyperframes, repurposing tools | 139 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 5 | 1,380 tok |
| ntygod/ZhiWei A local-first personal AI Agent assistant supporting memory, autonomous tasks, tool author | 137 | Claude Code, Codex, Cursor, OpenCode | 4 | 6,826 tok |
| PrestaShop/hummingbird Default theme for PrestaShop 9.1+ | 136 | Claude Code, GitHub Copilot, Cursor | 3 | 201 tok |
| madarco/ragrabbit ragrabbit.com Open Source, Self-Hosted, AI Search and LLM.txt for your website | 135 | Cursor | 1 | 1,453 tok |
| opsrobot-ai/opsrobot opsrobot.aishugroup.com Observability platform for Digital Employee, providing real-time tracing, session insights | 135 | Cursor | 3 | — |
| kv0906/pm-kit willtran.xyz AI-augmented PM workspace for Coding Agents — daily standups, decisions, blockers, docs, a | 133 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 49 | 2,513 tok |