How real projects configure their agents

23,614 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
wasserth/TotalSegmentator Tool for robust segmentation of >100 important anatomical structures in CT and MR images 3,116 Codex, OpenCode 1 1,240 tok
coddingtonbear/obsidian-local-rest-api coddingtonbear.github.io A secure REST API and Model Context Protocol (MCP) server for your vault. 3,116 Claude Code, Codex, OpenCode 3 2,817 tok
sonos/tract Tiny, no-nonsense, self-contained, Tensorflow and ONNX inference 3,111 Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode 4 1,717 tok
plugin87/ux-ui-agent-skills plugin87.github.io Turn Claude into a senior design architect: DTCG tokens, 52 components, WCAG 2.2 AA-AAA, 1 3,108 Claude Code, Codex, OpenCode 6 8,805 tok
chaterm/Chaterm chaterm.ai Open source AI terminal for cloud and infrastructure management, enabling you to deploy, t 3,105 Claude Code, Codex, OpenCode 2 4,048 tok
MemMachine/MemMachine memmachine.ai Universal memory layer for AI Agents. It provides scalable, extensible, and interoperable 3,086 Codex, OpenCode 1 1,070 tok
MetaMask/metamask-mobile metamask.io Mobile web browser providing access to websites that use the Ethereum blockchain 3,082 Claude Code, Codex, OpenCode 4 2,564 tok
aaron-he-zhu/aaron-marketing-skills aaronmarketing.ai 120 marketing skills as an AI marketing staff — plugin, portable skills, or an 8-bot team 3,074 Claude Code, Codex, OpenCode 2 6,255 tok
Yeachan-Heo/gajae-code Gajae Code MVP 3,065 Codex, OpenCode 1 3,146 tok
audreyt/ethercalc ethercalc.net Web spreadsheet — no sign-up, no install. 3,063 Codex, OpenCode 1 2,265 tok
deedy5/ddgs A metasearch library that aggregates results from diverse web search services 3,053 Codex, OpenCode 1 1,821 tok
visa/visa-vulnerability-agentic-harness Visa Vulnerability Agentic Harness 3,052 Claude Code, Codex, GitHub Copilot, OpenCode 3 4,744 tok
Shelf-nu/shelf.nu shelf.nu A free open source IT asset / Equipment / management and scheduling system. 3,051 Claude Code, Codex, GitHub Copilot, OpenCode 22 15,281 tok
modelcontextprotocol/ext-apps apps.extensions.modelcontextprotocol.io Official repo for spec & SDK of MCP Apps protocol - standard for UIs embedded AI chatbots, 3,051 Claude Code, Codex, OpenCode 2 1,219 tok
Simon-He95/markstream-vue markstream.simonhe.me Multi-framework streaming Markdown renderers for AI apps: Vue/Nuxt, React/Next.js, Octane, 3,051 Codex, OpenCode 13 644 tok
allenpeng0705/EnvoyMesh homeclaw.cn Decentralized P2P mesh for autonomous AI agents — self-sovereign identity, peer-to-peer ch 3,050 Claude Code, Codex, OpenCode 3 12,852 tok
addyosmani/web-quality-skills Agent Skills for optimizing web quality based on Lighthouse and Core Web Vitals. 3,043 Claude Code, Codex, OpenCode 2 2,277 tok
digitalinnovationone/dio-agent Agente de IA criado pela DIO para apoiar seus estudos. 3,036 Claude Code, Codex, OpenCode 2 1,326 tok
silexlabs/Silex silex.me Silex is an online tool for visually creating static sites with dynamic data. With the fre 3,033 Codex, OpenCode 1 1,449 tok
butterbase-ai/butterbase Open-source backend-as-a-service. Postgres, auth, storage, functions, AI gateway, MCP. 3,030 Codex, OpenCode 1 299 tok
qxcnm/Codex-Manager An account management and switching tool for Codex CLI. Provides local gateway forwarding 3,028 Codex, OpenCode 1 1,221 tok
vercel-labs/opensrc opensrc.sh Fetch source code for npm packages to give AI coding agents deeper context 3,027 Codex, OpenCode 1 822 tok
huggingface/tau twotimespi.dev A Python port of Pi’s minimalist coding agent. 3,023 Codex, OpenCode 1 678 tok
huangwb8/ChineseResearchLaTeX A collection of commonly used LaTeX templates for Chinese research 3,020 Claude Code, Codex, OpenCode 2 2,791 tok
public-clis/twitter-cli A CLI for Twitter/X — feed, bookmarks, and user timeline in terminal 3,017 Codex, OpenCode 1 541 tok
supabase/agent-skills supabase.com Agent Skills to help developers using AI agents with Supabase 3,009 Claude Code, Codex, OpenCode 2 1,633 tok
supabase/mcp supabase.com Connect Supabase to your AI assistants 2,994 Claude Code, Codex, OpenCode 2 28 tok
ax-llm/ax axllm.dev The pretty much "official" DSPy framework for Typescript 2,978 Codex, OpenCode 1 1,582 tok
doronz88/pymobiledevice3 doronz88.github.io Pure python3 implementation for working with iDevices (iPhone, etc...). 2,975 Claude Code, Codex, OpenCode 5 1,828 tok
aljazceru/awesome-nostr nostr.net nostr.net - awesome-nostr is a collection of projects and resources built on nostr to help 2,974 Codex, OpenCode 1 969 tok
jsynowiec/node-typescript-boilerplate Production-ready Node.js TypeScript boilerplate: ESM, Vitest, Oxlint, Oxfmt, GitHub Action 2,962 Codex, OpenCode 1 64 tok
intellectronica/ruler Ruler — apply the same rules to all coding agents 2,961 Codex, OpenCode 1 279 tok
antfu/node-modules-inspector node-modules.dev Interactive UI for local node modules inspection 2,960 Claude Code, Codex, OpenCode 2 357 tok
glincker/thesvg thesvg.org The open SVG brand library: 7,600+ brand logos and cloud icons (AWS, Azure, GCP) as offici 2,957 Codex, OpenCode 1 1,552 tok
Vexa-ai/vexa vexa.ai Open-source meeting transcription API for Google Meet, Microsoft Teams & Zoom. Auto-join b 2,951 Claude Code, Codex, OpenCode 2 3,288 tok
openlit/openlit docs.openlit.io OpenLIT is the open-source agent harness engineering platform: trace, evaluate, guard, and 2,950 Claude Code, Codex, OpenCode 5 912 tok
supercorp-ai/supergateway Run MCP stdio servers over HTTP streamable, SSE and SSE over stdio. AI gateway. 2,948 Codex, OpenCode 1 144 tok
git-ai-project/git-ai usegitai.com A Git extension for tracking the AI-generated code in your repos 2,944 Claude Code, Codex, OpenCode 2 4,601 tok
moltis-org/moltis moltis.org A secure persistent personal agent server in Rust. One binary, sandboxed execution, multi- 2,941 Claude Code, Codex, OpenCode 7 6,230 tok
chrisryugj/kordoc pubax.org Parse everything — HWP, HWPX, PDF, and Office documents into Markdown. CLI and MCP server 2,928 Claude Code, Codex, OpenCode 3 3,253 tok
charmbracelet/pop Send emails from your terminal 📬 2,927 Codex, OpenCode 1 1,462 tok
EvanBacon/serve-sim The `npx serve` of Apple Simulators. 2,927 Claude Code, Codex, OpenCode 4 983 tok
chdb-io/chdb clickhouse.com chDB is an in-process OLAP SQL Engine 🚀 powered by ClickHouse 2,925 Claude Code, Codex, OpenCode 3 260 tok
runkids/skillshare skillshare.runkids.cc 📚 Sync skills, agents, MCP, plugins to all AI CLI tools with one command and simplify tea 2,923 Claude Code, Codex, OpenCode 2 1,400 tok
jeremylongshore/tons-of-skills-marketplace tonsofskills.com Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapter 2,900 Claude Code, Codex, OpenCode 5 12,975 tok
kaitranntt/ccs ccs.kaitran.ca Switch between Claude accounts, Gemini, Copilot, OpenRouter (300+ models) via CLIProxyAPI 2,896 Claude Code, Codex, OpenCode 5 1,425 tok
slavakurilyak/awesome-ai-agents Awesome list of 300+ agentic AI resources 2,890 Codex, OpenCode 1 403 tok
remorses/gpuix gpuix.dev Node.js & Bun bindings for Zed’s GPUI. Build memory efficient native apps with React or So 2,875 Claude Code, Codex, OpenCode 2 18,323 tok
VRSEN/OpenSwarm Claude code for everything except coding 2,871 Claude Code, Codex, Cursor, OpenCode 12 2,918 tok
f5/unovis unovis.dev Modular data visualization framework for React, Angular, Svelte, Vue, and vanilla TypeScri 2,865 Claude Code, Codex, OpenCode 6 78 tok