How real projects configure their agents

24,785 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 agents8,489Claude Code6,881Git and workflow3,605Data and AI3,580Backend and APIs3,556Languages3,486Planning3,323Code review2,893Testing2,681Writing and docs2,477DevOps and cloud2,477Memory and context2,375Research2,318Frontend2,308Security2,170Project management1,960

All Claude Code32,505 Codex24,785 OpenCode23,702 GitHub Copilot3,719 Gemini CLI2,034 Cursor1,771 Windsurf202 Kiro114

Project Stars Configures Files Always loaded
aronprins/codex-loop Hand Codex a PRD. Get a working feature back. One story per subagent, fresh context every 25 Codex, OpenCode 1 212 tok
Tencent/awesome-devbuddy 25 Claude Code, Codex 11 —
decode-orc/decode-orc decode-orc.github.io The -decode orchestration and processing engine 25 Claude Code, Codex, GitHub Copilot, OpenCode 5 7,687 tok
kaptinlin/gozod Go port of TypeScript Zod validation library with full API compatibility and type safety 25 Claude Code, Codex, OpenCode 3 3,780 tok
fewtarius/llama-ai A project repository for work on improving local LLMs on my personal AMD devices 25 Codex, OpenCode 1 4,614 tok
k3sra/halo-multiplayer-evolved The multiplayer Halo: Campaign Evolved should have shipped with. Original modes and maps, 25 Codex, OpenCode 1 2,293 tok
he4rt/marketing-extension heartdevs.com Chrome extension that passively captures X/Twitter GraphQL responses to track community en 25 Claude Code, Codex, OpenCode 2 4,535 tok
kiyeonjeon21/reframe docs.reframe-video.com Declarative motion graphics AI can write, humans can tweak — edits survive AI regeneration 25 Claude Code, Codex, OpenCode 6 10,087 tok
KyleNesium/AIBattery aibattery.dev A battery style usage meter for Claude Code and OpenAI Codex. Rate limits, context health, 25 Claude Code, Codex, OpenCode 2 3,058 tok
codeworksh/codework codework.sh AI agent toolkit for coding agents, unified LLM APIs, agentic workflows, tool harness and 25 Claude Code, Codex, OpenCode 2 2,861 tok
Brad-Edwards/aptl brad-edwards.github.io SOC-in-a-Box for AI purple teaming 25 Claude Code, Codex, GitHub Copilot, OpenCode 9 1,547 tok
opendsr-std/seedfaker Deterministic synthetic data generator for realistic, correlated, and noisy test records 25 Claude Code, Codex, OpenCode 2 441 tok
modelstudioai/OpenAgentPack Manage, review, and migrate cloud AI agents with Git and YAML. The open-source IaC contro 25 Claude Code, Codex 25 —
kinncj/MAPLE A comprehensive template for building applications with AI-powered development agents Thi 25 Claude Code, Codex, GitHub Copilot, OpenCode 7 5,879 tok
kingbootoshi/rgr Strict Red-Green-Refactor CLI gate for coding agents 25 Codex, OpenCode 1 161 tok
ZiiMs/Grove grove.ziim.dev Grove allows you to run multiple AI coding agents simultaneously, each working on its own 25 Codex, OpenCode 1 710 tok
yutori-ai/yutori-mcp yutori.com Yutori MCP 25 Claude Code, Codex 7 —
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
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
CerebroCanibalus/Ultra-Godot-MCP-ASL 25 Codex, OpenCode 1 4,894 tok
pavelzw/skill-forge prefix.dev A place to store coding agent skills. 25 Codex, OpenCode 1 613 tok
TJ-Frederick/TheologAI Bible and theological study MCP server 25 Claude Code, Codex, OpenCode 2 9,530 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 —
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 6 920 tok
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
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
fireostendere/mcp_diptrace MCP server and live XML bridge for DipTrace 25 Claude Code, Codex, OpenCode 12 2,883 tok
Ikaleio/patchright-mcp 25 Codex, OpenCode 1 307 tok
izzoa/polyrouter polyrouter.app A self-hostable LLM router / gateway: OpenAI- and Anthropic-compatible, explicit-first rou 25 Claude Code, Codex, OpenCode 22 3,599 tok
chengzuopeng/ccgauge ccgauge.linkdiary.cn Claude Code & Codex Dashboard — local web UI for Cluade & Codex token usage and cost. npx 25 Claude Code, Codex, OpenCode 2 9,755 tok
hyhmrright/logic-lens Logic-first AI code review via semi-formal execution tracing (Premises → Trace → Divergenc 25 Claude Code, Codex, Gemini CLI, OpenCode 5 807 tok
aiappsgbb/kratos-agent 25 Claude Code, Codex, OpenCode 3 5,227 tok