44,969 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 agents8,530Claude Code6,887Git and workflow3,618Data and AI3,582Backend and APIs3,558Languages3,485Planning3,325Code review2,903Testing2,691DevOps and cloud2,482Writing and docs2,481Memory and context2,373Research2,322Frontend2,310Security2,179Project management1,971
All Claude Code32,523 Codex24,842 OpenCode23,761 GitHub Copilot3,723 Gemini CLI2,038 Cursor1,771 Windsurf201 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| yutori-ai/yutori-mcp yutori.com Yutori MCP | 25 | Claude Code, Codex | 7 | — |
| rezaho/MARSYS marsys.ai Multi-Agent Reasoning Systems | 25 | GitHub Copilot | 2 | 4,189 tok |
| Dicklesworthstone/flywheel_gateway SDK-first orchestration platform for managing AI coding agent fleets: BYOA key rotation, r | 25 | Codex, OpenCode | 1 | 10,478 tok |
| cnkang/nginx-markdown-for-agents Self-hostable NGINX module that serves Markdown to AI agents via HTTP content negotiation | 25 | Codex, OpenCode | 1 | 18,546 tok |
| aeromechanic000/minecraft-ai-python An Open Framework for Building Embodied AI in Minecraft | 25 | Claude Code | 1 | 7,927 tok |
| worldcoin/agentkit docs.world.org Bridging humans and agents online. | 25 | Claude Code | 1 | 702 tok |
| ArcadeAI/docs docs.arcade.dev Documentation for Arcade AI | 25 | Claude Code, Codex, Cursor, OpenCode | 4 | 2,641 tok |
| AEON-7/Aeon-Bench-Pod Run the AEON Bench suite on your own hardware: verified HuggingFace pull → serve → benchma | 25 | Codex, OpenCode | 1 | 32,917 tok |
| mpsuesser/pi-effect-harness npmjs.com Enforce Effect-first code standards as part of the agent loop | 25 | Codex, OpenCode | 1 | 1,252 tok |
| gtasb/Burp-AI-Analyzer An AI-assisted penetration testing assistant developed with agentscope | 25 | Codex, OpenCode | 1 | 2,475 tok |
| xiaolai/bureau Turn AI sessions into a maintained, human-reviewed knowledge base: capture → compile → rev | 25 | Claude Code, Codex, OpenCode | 2 | 644 tok |
| r3bb1t/llvmkit Pure rust implementation of LLVM (IR related parts) | 25 | Claude Code, Codex, OpenCode | 5 | 37,769 tok |
| thomaspinder/Impulso thomaspinder.github.io Bayesian VAR and SVAR models in Python. | 25 | Claude Code, Codex, OpenCode | 5 | 4,534 tok |
| farcasterxyz/collectible-casts | 25 | Claude Code | 1 | 3,579 tok |
| a950523a/TES-Taiwan-Electric-Scooter-Charging-Controller a950523a.github.io Open-source DC fast-charging controller for Taiwan TES electric scooters — ESP32-S3, CAN, | 25 | Claude Code | 1 | 30,265 tok |
| ideo/Rubber-Duck Lofi creative companion | 25 | Claude Code | 1 | 1,515 tok |
| yamafaktory/formal A Lean 4 + Mathlib proof service for the agent working on your code | 25 | Claude Code | 2 | 1,311 tok |
| CerebroCanibalus/Ultra-Godot-MCP-ASL | 25 | Codex, OpenCode | 1 | 4,894 tok |
| gokr/nimcp A Nim library to easily make MCP servers for use by LLMs | 25 | Claude Code | 1 | 1,143 tok |
| pavelzw/skill-forge prefix.dev A place to store coding agent skills. | 25 | Codex, OpenCode | 1 | 613 tok |
| brian-ln/stealth-browser-mcp A MCP Server that provides browser access through playwright with "stealth mode" enabled. | 25 | Claude Code | 1 | 303 tok |
| TJ-Frederick/TheologAI Bible and theological study MCP server | 25 | Claude Code, Codex, OpenCode | 2 | 9,530 tok |
| FredShred7/whatsapp-mcp-server MCP server for WhatsApp Cloud API — send messages, read conversations, manage contacts, an | 25 | Claude Code | 1 | 1,103 tok |
| feniix/pi-extensions feniix-hq.net Extensions, tools, and integrations for the pi coding agent. | 25 | Claude Code, Codex, OpenCode | 3 | 1,666 tok |
| Xiaxia1997/mini-claude-code-python Python implementation of coding agent core mechanisms, with architecture comparison across | 25 | Codex, OpenCode | 1 | 608 tok |
| hermes-labs-ai/fidelis hermes-labs.ai Zero-LLM agent memory for Claude Code and AI agents: local-first BM25, dense-vector, and r | 25 | Claude Code, Codex, Gemini CLI | 2 | 299 tok |
| ivfarias/ceo The CEO Agent Orchestration System | 25 | Claude Code, Codex | 42 | — |
| handarbeit/fabrik fabrik.handarbeit.io Drive Claude Code through an SDLC pipeline on your GitHub Project board — Specify → Resear | 25 | Claude Code | 6 | — |
| sruja-ai/sruja sruja.ai A CLI-first autonomous coding agent where the actor never grades itself. Every edit is gro | 25 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 7,132 tok |
| sgaabdu4/building-flutter-apps Flutter clean architecture skill for AI agents. Riverpod 3.x codegen, Freezed 3.x sealed c | 25 | Claude Code, Codex, OpenCode | 6 | 924 tok |
| magnusrodseth/sparebank1-cli CLI for the SpareBank 1 personal banking API (accounts, transactions, transfers). BankID l | 25 | Codex, OpenCode | 1 | 1,310 tok |
| agentkitai/agentlens agentkitai.github.io Open-source observability and audit trail platform for AI agents. MCP-native, tamper-evide | 25 | Claude Code | 41 | — |
| nonatofabio/mindle A quiet place to read Markdown. Native macOS e-reader with highlighting, annotations & GFM | 25 | Codex, OpenCode | 1 | 3,255 tok |
| Squid-Proxy-Lovers/ccp spl.team Cephalopod Coordination Protocol (CCP) is a Rust-based client-server protocol for fast, re | 25 | Claude Code, Codex, OpenCode | 2 | 1,482 tok |
| nitsan-technologies/ns_t3af t3planet.de MCP-first AI foundation for TYPO3. Bring AI agents into TYPO3, on your terms. | 25 | Claude Code, Codex, OpenCode | 5 | 1,082 tok |
| ShreyPaharia/octomux octomux.com Local dashboard to run parallel Claude Code & Cursor agents — kanban fleet view, one permi | 25 | Claude Code | 4 | 11,253 tok |
| agentharnesses/agentharnesses agentharnesses.io A standard for Agent Harnesses | 25 | Claude Code | 2 | — |
| aws-samples/sample-agentic-chatbot-accelerator A full-stack agentic harness on AWS — spin up multi-agent chatbots, voice-to-voice AI, RAG | 25 | Claude Code | 12 | 1,413 tok |
| superfly/sprites-ex sprites.dev Elixir SDK for Fly.io Sprites: computers for agents. Manage Sprites and run remote command | 25 | Claude Code | 1 | 504 tok |
| hdl-tools/analog-chip-design-agents Analog HDL Design Full-stack Agents | 25 | GitHub Copilot | 1 | 237 tok |
| gohypergiant/agent-skills agent-skills.accelint.io A collection of skills for AI coding agents. Skills are packaged instructions and scripts | 25 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,658 tok |
| NVIDIA/cloudxr-js-samples nvidia.github.io The samples for CloudXR.js, a JavaScript Client SDK that enables developers to build enter | 25 | Codex, OpenCode | 1 | 2,827 tok |
| d1vai/d1v-cli d1v.ai Experimental CLI for d1v.ai | 25 | Codex, OpenCode | 1 | 935 tok |
| biglinux/biglinux-webapps | 25 | Codex, OpenCode | 1 | 2,676 tok |
| bobby1129/stock-analysis-pro A flexible stock analysis skill for personal investors. Optimized for AI Agent integration | 25 | Codex, OpenCode | 1 | 5,047 tok |
| Gusto/baerly-storage medium.com Document database with no database server. Tiny, LLM-friendly TypeScript API; DB engine ru | 25 | Claude Code, Codex, OpenCode | 6 | 6,967 tok |
| Yazelix/mars Mars Terminal: a Rio-derived, Ghostty-inspired Rust terminal emulator focused on Kitty pro | 25 | Codex, OpenCode | 1 | 510 tok |
| raoulbia-ai/claude-recall | 25 | Claude Code | 1 | — |
| weiserman/rap-skills Claude Code skills for SAP RAP development — branch-per-scenario for BTP, S/4HANA Cloud, a | 25 | Claude Code | 1 | — |
| Ikaleio/patchright-mcp | 25 | Codex, OpenCode | 1 | 307 tok |