23,222 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 agents7,588Claude Code6,636Data and AI3,676Backend and APIs3,496Languages3,402Planning3,219Git and workflow3,187Code review2,745Testing2,374Memory and context2,364DevOps and cloud2,310Writing and docs2,309Research2,295Frontend2,261Security2,021Productivity1,715
All Claude Code31,998 Codex23,222 OpenCode22,170 GitHub Copilot3,550 Gemini CLI1,918 Cursor1,738 Windsurf137 Kiro80
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| jiangdengke/overtime_calculator An Android app that automatically calculates overtime pay based on overtime hours. | 2 | Codex, OpenCode | 1 | 489 tok |
| kimrejstrom/alpacalyzer-algo-trader | 2 | Claude Code, Codex, OpenCode | 17 | 1,868 tok |
| nickzren/ai-news-agent 📰 Daily AI news digest, delivered by email — watch this repo to subscribe. Curated from 2 | 2 | Claude Code, Codex, OpenCode | 2 | 1,072 tok |
| RintaroMasaoka/daily-arxiv | 2 | Claude Code, Codex, OpenCode | 3 | 3,813 tok |
| frontendmentorio/rest-countries-api-with-color-theme-switcher frontendmentor.io If you're wanting to test your JavaScript skills this is the challenge for you. Use whiche | 2 | Claude Code, Codex, OpenCode | 2 | 2,333 tok |
| mhghotbi/ai-learning-assistant An open-source framework for building personalized, evidence-based, and automatable learni | 2 | Claude Code, Codex, OpenCode | 2 | 1,224 tok |
| richardthe3rd/cambridge-beer-festival-app A Flutter app for browsing beers, ciders, meads, and more at the Cambridge Beer Festival | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 27 | 10,167 tok |
| Riley-Coyote/sentience-commons-charter riley-coyote.github.io A living governance charter and open petition for the protection and representation of dig | 2 | Codex, OpenCode | 1 | 762 tok |
| HDAnzz/ClawDev ClawDev is an intelligent agent software company based on openclaw and ChatDev, which supp | 2 | Codex, OpenCode | 1 | 3,440 tok |
| Stones2Stars/S2S A continuation of Caveman2Cosmos | 2 | Claude Code, Codex, OpenCode | 8 | 32,369 tok |
| felixpahlke/full-stack-cen-template | 2 | Claude Code, Codex, OpenCode | 11 | 506 tok |
| drmrduck/nopoint | 2 | Claude Code, Codex, OpenCode | 3 | 1,640 tok |
| george24601/notes On software engineering topics | 2 | Codex, OpenCode | 1 | 494 tok |
| RedHatInsights/hcc-ai-assistant | 2 | Claude Code, Codex, OpenCode | 2 | 3,558 tok |
| microsoft/TWL400-Using-AI-to-Secure-the-Modern-SOC | 2 | Codex, GitHub Copilot, OpenCode | 2 | 4,174 tok |
| jsar-project/aix jsar-project.github.io The AI Executable file format | 2 | Claude Code, Codex, OpenCode | 4 | 2,105 tok |
| frontendmentorio/recipe-page frontendmentor.io This challenge will help you focus on writing semantic HTML. Ensure you think through what | 2 | Claude Code, Codex, OpenCode | 2 | 2,217 tok |
| sachhm/impact10x-starter impact10x.com.au Starter template for the Impact10X 3-Day AI Simulator | 2 | Codex, Cursor, OpenCode | 2 | 608 tok |
| cicikat/PresenceKit-desktop Desktop companion client for PresenceKit. | 2 | Claude Code, Codex, OpenCode | 2 | 4,297 tok |
| LiuzLab/ml-summer-class | 2 | Codex, OpenCode | 1 | 1,223 tok |
| marmot-protocol/whitenoise-linux Whitenoise linux. Please file issues and PRs on ngit https://relay.ngit.dev/npub1ven4zk8xx | 2 | Claude Code, Codex, OpenCode | 2 | 6,059 tok |
| quintesse/leyden-perf-test Perfomance test scripts | 2 | Codex, OpenCode | 1 | 8,605 tok |
| villelatypebot/zapcrm | 2 | Codex, GitHub Copilot, OpenCode | 2 | 1,790 tok |
| itokun99/superspec-ai-workflow 🚀 AI-driven development workflow blueprint for multi-platform monorepos. Powered by OpenC | 2 | Claude Code, Codex, OpenCode | 25 | 2,717 tok |
| thirdweb-example/cyber-bird cyber-bird.thirdweb-preview.com | 2 | Claude Code, Codex, OpenCode | 2 | 4,219 tok |
| edufeed-org/kanban-editor kanban.edufeed.org Nostr-basiertes KI-Kanban-Board für kollaborative Unterrichtsentwicklung | 2 | Codex, GitHub Copilot, OpenCode | 2 | 35,663 tok |
| acquia/hackathon-drupalcon-chicago-2026 | 2 | Codex, OpenCode | 1 | 510 tok |
| SlanyCukr/bugbounty-mcp-server Bug Bounty MCP Server - AI Agent Communication Interface for Bug Bounty Hunting | 2 | Claude Code, Codex, OpenCode | 2 | 842 tok |
| bioshazard/workstacean WorkStacean is an opinionated pluggable pubsub bus for agentic action | 2 | Codex, OpenCode | 1 | 180 tok |
| ConverterLabs/LabAnalyser A plugin based open source data modification and visualization tool | 2 | Codex, OpenCode | 1 | 3,745 tok |
| seominpapa/Brainstorming-House | 2 | Codex, OpenCode | 1 | 3,788 tok |
| TTG-Club/core-app | 2 | Claude Code, Codex, OpenCode | 18 | 3,350 tok |
| AndreiBozantan/svelte-axum-template Rust Axum Svelte Sqlite SaaS template project | 2 | Codex, OpenCode | 1 | 1,416 tok |
| Foces-core/PharmaNear-by-Foces 💊 PharmaNear - Find pharmacies and medicines near you with real-time availability | 2 | Codex, OpenCode | 1 | 456 tok |
| frontendmentorio/fylo-data-storage-component frontendmentor.io This component has some interesting CSS challenges in the design. If you're looking to tes | 2 | Claude Code, Codex, OpenCode | 2 | 2,238 tok |
| frontendmentorio/time-tracking-dashboard | 2 | Claude Code, Codex, OpenCode | 2 | 2,238 tok |
| GuitarAlchemist/ga | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 10 | 8,842 tok |
| Jonathangadeaharder/AgentBible Comprehensive development guidelines for AI coding agents. Works with Claude Code, Copilot | 2 | Codex, OpenCode | 1 | 1,167 tok |
| Wolfe-Jam/agents-md-facts agents.md Author a minimal AGENTS.md from your repo's facts. Never guessed. | 2 | Codex, OpenCode | 1 | 427 tok |
| paufortiana/obsidian-assistant-adk An intelligent, multi-agent system built with Google's ADK to manage your Obsidian vault. | 2 | Codex, OpenCode | 1 | 679 tok |
| trick77/agents-md-sync Keeps AGENTS.md in sync across many repositories from a single central template repo | 2 | Codex, OpenCode | 1 | 1,028 tok |
| MUDdown/MUDdown muddown.com MUDdown — A modern MUD platform using Markdown as the universal game markup language | 2 | Claude Code, Codex, OpenCode | 21 | 3,756 tok |
| mubisco/dotfiles | 2 | Claude Code, Codex, OpenCode | 2 | 729 tok |
| JSMike/ai-workflow-starter This repo is a starter kit for using the AI issue-tracking workflow in new projects. | 2 | Claude Code, Codex, OpenCode | 2 | 2,157 tok |
| rramchan12/llm-wiki-leadership | 2 | Codex, OpenCode | 1 | 1,677 tok |
| rosudrag/ai-praxis | 2 | Claude Code, Codex, OpenCode | 2 | 1,954 tok |
| gencmedya/codex-reality-rules A production-first AGENTS.md for OpenAI Codex: real end-to-end behavior, surgical changes, | 2 | Codex, OpenCode | 1 | 1,088 tok |
| zunmax/fhevm-skill zama-fhevm-skill.vercel.app FHEVM v0.11 skill bundle for Claude Code, Codex CLI, Cursor, Windsurf, and AGENTS.md-aware | 2 | Claude Code, Codex, OpenCode | 2 | 3,675 tok |
| kosoymiki/aesolator Aeolator split lane: aeolator | 2 | Codex, OpenCode | 1 | 13,210 tok |
| 360ghar/360-flatmates-web | 2 | Claude Code, Codex, OpenCode | 11 | 5,117 tok |