24,692 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 |
|---|---|---|---|---|
| raroque/boop-agent iMessage personal agent: choose Claude Agent SDK (Claude Code) or Codex app-server runtime | 1,388 | Claude Code, Codex, OpenCode | 10 | 589 tok |
| Lapis0x0/obsidian-yolo Agent-native AI assistant — chat, write, whiteboard, learning, all in one. | 1,386 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 2,531 tok |
| sashiko-dev/sashiko sashiko.dev Agentic review of Linux Kernel code changes | 1,385 | Codex, Gemini CLI, OpenCode | 2 | 3,751 tok |
| HashLoad/horse Fast, opinionated, minimalist web framework for Delphi | 1,383 | Claude Code, Codex | 4 | — |
| michaelshimeles/skills Agent skills and an AGENTS.md workflow template — isolate in worktrees, build to a service | 1,383 | Codex, OpenCode | 1 | 1,521 tok |
| IoTSharp/IoTSharp iotsharp.net IoTSharp is an open-source IoT platform for data collection, processing, visualization, an | 1,383 | Codex, GitHub Copilot, OpenCode | 2 | 2,703 tok |
| Dimillian/CodexSkillManager macOS app to manage your Codex skills | 1,379 | Codex, OpenCode | 1 | 880 tok |
| LilMGenius/paperthin paperthin.ai Low-level agentic design patterns. Turning old engineering wisdom into reflexes your agent | 1,375 | Claude Code, Codex, OpenCode | 2 | 3,409 tok |
| tontinton/maki maki.sh An efficient AI coding agent extendable by neovim-like Lua plugins | 1,374 | Codex, OpenCode | 1 | 1,101 tok |
| apache/struts struts.apache.org Apache Struts is a free, open-source, MVC framework for creating elegant, modern Java web | 1,373 | Claude Code, Codex, OpenCode | 10 | 1,547 tok |
| affaan-m/agentshield cerebralvalley.ai AI agent security scanner. Detect vulnerabilities in agent configurations, MCP servers, an | 1,368 | Claude Code, Codex | 2 | 936 tok |
| piratuks/invoice-builder Invoice and quotation builder desktop app with PDF export, designed for small businesses a | 1,365 | Claude Code, Codex, GitHub Copilot, OpenCode | 12 | 3,467 tok |
| microsoft/winappCli winapp, the Windows App Development CLI, is a single command-line interface for managing W | 1,363 | Claude Code, Codex, OpenCode | 5 | 8,075 tok |
| study8677/repobrain deepwiki.com 🧠 RepoBrain (formerly Antigravity) — Give your repo a brain. ChatGPT for your codebase: w | 1,359 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 385 tok |
| infinispan/infinispan infinispan.org Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store | 1,359 | Codex, GitHub Copilot, OpenCode | 2 | 509 tok |
| sceneview/sceneview sceneview.github.io 3D & AR SDK for Android (Jetpack Compose + Filament), Apple (SwiftUI + RealityKit), Web, F | 1,358 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 6 | 6,073 tok |
| MaJerle/c-code-style majerle.eu Recommended C code style and coding rules for standard C99 or later. Comes with AI agent s | 1,357 | Codex, OpenCode | 1 | 879 tok |
| first-fluke/oh-my-agent firstfluke.com Agent skills and specialist teams for Claude Code, Codex, Cursor and other coding agents. | 1,357 | Claude Code, Codex, OpenCode | 1 | 1,065 tok |
| getsentry/sentry-java docs.sentry.io A Sentry SDK for Java, Android and other JVM languages. | 1,357 | Claude Code, Codex, OpenCode | 6 | 3,183 tok |
| poco-ai/poco-claw poco-docs.vercel.app A more beautiful and easier-to-use alternative to OpenClaw. It features a nicer Web UI, bu | 1,355 | Claude Code, Codex, OpenCode | 2 | 2,869 tok |
| stenolabs/stenoai stenoai.co StenographAI is the secure privacy-first AI notepad & notetaker for confidential conversat | 1,355 | Claude Code, Codex, OpenCode | 2 | 10,305 tok |
| basementstudio/xmcp xmcp.dev The TypeScript MCP framework | 1,347 | Claude Code, Codex, OpenCode | 3 | 628 tok |
| huytieu/COG-second-brain Self-evolving second brain with 35 AI skills, 10 agents, and people CRM. Closed-loop harne | 1,340 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 11 | 18,441 tok |
| spiculedata/saiku saiku.bi Open-source semantic layer: one cube for Excel (MDX/XMLA), dashboards, and AI agents (MCP) | 1,339 | Claude Code, Codex, GitHub Copilot, OpenCode | 10 | 13,407 tok |
| Intuition-Lab/personal-model intuition-lab.github.io Build your HUMAN.md. | 1,335 | Claude Code, Codex, OpenCode | 2 | 1,391 tok |
| wprig/wprig wprig.io A modern performance-focused theme development toolkit for WordPress. | 1,334 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,212 tok |
| OpenRaiser/NanoResearch 🦞+🔬 NanoResearch: The Autonomous AI Research Assistant | 1,332 | Claude Code, Codex, OpenCode | 2 | 1,586 tok |
| shift-labs-ai/markit 🖍️ Convert anything to markdown. Mark it. | 1,328 | Codex, OpenCode | 1 | 594 tok |
| LiteLLM-Labs/litellm-agent-control-plane docs.litellm-agent-platform.ai 1 place to call all your agents - OpenCode, Hermes, Claude Managed Agents, Cursor Agents A | 1,327 | Codex, OpenCode | 1 | 339 tok |
| storybookjs/react-native storybook.js.org 📓 Storybook for React Native! | 1,326 | Claude Code, Codex, OpenCode | 3 | 1,086 tok |
| apache/incubator-xtable xtable.apache.org Apache XTable (incubating) is a cross-table converter for lakehouse table formats that fac | 1,326 | Codex, OpenCode | 1 | 1,870 tok |
| higress-group/himarket HiMarket is an enterprise-level "AI Capability Marketplace and Developer Ecosystem Hub." I | 1,325 | Codex, OpenCode | 1 | 1,136 tok |
| chen0416ccc-cpu/codex-windows-fast-patch-skill These skills guide agents in restoring local patches and feature toggles disabled or inval | 1,325 | Codex, OpenCode | 1 | 712 tok |
| uphiago/recon-skills hiago.sh Recon & pentest skill pack. CORS, XSS, SQLi, SSRF, RCE, WordPress, MCP, cloud, subdomain t | 1,324 | Codex, OpenCode | 1 | 900 tok |
| matlab/simulink-agentic-toolkit The Simulink Agentic Toolkit gives your AI agent both the tools and the expertise to work | 1,322 | Codex, OpenCode | 1 | 402 tok |
| greyhaven-ai/autocontext a recursive self-improving harness designed to help your agents (and future iterations of | 1,321 | Claude Code, Codex, OpenCode | 2 | 4,707 tok |
| microsoft/skills-for-fabric A collection of skills and MCP systems to enable users of CLI, VSCode, Claude to operate o | 1,321 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode, Windsurf | 5 | 12,304 tok |
| coleam00/claude-memory-compiler Give Claude Code a memory that evolves with your codebase. Hooks automatically capture ses | 1,320 | Claude Code, Codex, OpenCode | 5 | 4,446 tok |
| datalayer/jupyter-mcp-server jupyter-mcp-server.datalayer.tech 🪐 🔧 Model Context Protocol (MCP) Server for Jupyter. | 1,320 | Claude Code, Codex, GitHub Copilot | 2 | 2,265 tok |
| NVIDIA-NeMo/Gym docs.nvidia.com Evaluate and improve models and agents using environments | 1,320 | Claude Code, Codex, OpenCode | 17 | 5,156 tok |
| neurogen-dev/NeuroAPI neuroapi.host NeuroAPI: a Russian AI API for Codex CLI and Claude Code — secure one-click installers for | 1,317 | Codex, OpenCode | 1 | 509 tok |
| voidful/hung-yi-lee-skill A skill distilled from Professor Li Hongyi's teachings, combined with Karpathy's LLM, enha | 1,317 | Codex, OpenCode | 1 | 843 tok |
| fancyboi999/ai-engineering-from-scratch-zh aieng-zh.cn The most comprehensive learning path for Agent engineers · Master AI engineering from scra | 1,317 | Claude Code, Codex, OpenCode | 18 | 2,739 tok |
| conorluddy/ios-simulator-skill conor.fyi An IOS Simulator Skill for Agents. Use it to optimise their ability to build, run and inte | 1,312 | Claude Code, Codex, OpenCode | 2 | 2,915 tok |
| awdr74100/figwright Free, two-way Figma MCP server. Turn designs into framework-aware code, and push code back | 1,312 | Claude Code, Codex, OpenCode | 6 | 6,155 tok |
| Agentshire/Agentshire OpenClaw / QClaw plugin that visualizes AI agents as 3D NPCs in a game town — with social | 1,310 | Codex, OpenCode | 1 | 5,768 tok |
| caliber-ai-org/ai-setup trycaliber.ai Continuously sync your AI setups with one command. Codebase tailor suited agent skills, MC | 1,309 | Claude Code, Codex, OpenCode | 10 | 3,283 tok |
| Arize-ai/openinference arize-ai.github.io OpenTelemetry Instrumentation for AI Observability | 1,307 | Claude Code, Codex, OpenCode | 12 | 1,067 tok |
| dohooo/helmor helmor.ai Open-source local workbench for multi-agent software development. | 1,306 | Claude Code, Codex, OpenCode | 9 | 10,385 tok |
| d-kimuson/claude-code-viewer npmjs.com A full-featured web-based Claude Code client that provides complete interactive functional | 1,306 | Claude Code, Codex, OpenCode | 11 | 3,171 tok |