23,799 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 agents8,544Claude Code6,892Git and workflow3,622Data and AI3,580Backend and APIs3,558Languages3,492Planning3,321Code review2,907Testing2,690DevOps and cloud2,489Writing and docs2,484Memory and context2,374Research2,321Frontend2,311Security2,178Project management1,971
All Claude Code32,539 Codex24,879 OpenCode23,799 GitHub Copilot3,723 Gemini CLI2,040 Cursor1,772 Windsurf202 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| QuantStack/jupyter-ui-tweak UI tweaks for Jupyter application | 2 | Codex, OpenCode | 1 | 4,334 tok |
| jinglinsen/ai-coding-agents-rules My global AGENTS.md instructions for AI-assisted full-stack development. | 2 | Codex, OpenCode | 1 | 3,554 tok |
| reaatech/agents-md-kit reaatech.com Linter, validator, and examples for AGENTS.md and SKILL.md — durable agent instruction art | 2 | Codex, OpenCode | 1 | 4,162 tok |
| realtrung/AGENTS.md An iteration-based TDD workflow for coding agents. | 2 | Claude Code, Codex, OpenCode | 3 | 839 tok |
| uannoare/agents.md | 2 | Codex, OpenCode | 1 | 441 tok |
| 0xmichalis/agent-rules 📜 Project-specific guidelines for AI coding assistants | 2 | Claude Code, Codex, OpenCode | 3 | 1,167 tok |
| YtGz/agents-md LLM instructions for building webapps powered by Svelte 5, Convex and Bits UI. | 2 | Codex, OpenCode | 1 | 14,103 tok |
| refaatcrafts/opencraft Terminal-first AI coding agent built with Go, Gemini, and Charm's TUI stack. | 2 | Claude Code, Codex, OpenCode | 2 | 772 tok |
| tinyhumansai/tinyvoice | 2 | Claude Code, Codex, OpenCode | 3 | 3,066 tok |
| Cyberistic/offline-quran-validation | 2 | Codex, OpenCode | 1 | 2,870 tok |
| GQLJ111/codex-agents-template A Chinese Codex AGENTS.md template for safer, clearer, and more verifiable coding workflow | 2 | Codex, OpenCode | 1 | 1,888 tok |
| zopiolabs/agentbuilder | 2 | Codex, OpenCode | 1 | 6,627 tok |
| eru123/repopact RepoPact is a copy-paste project operating contract for AI coding agents and human contrib | 2 | Claude Code, Codex, OpenCode | 2 | 3,464 tok |
| philtzjp/startingpoint A common template repository for starting new Philtz repositories. | 2 | Codex, OpenCode | 1 | 131 tok |
| moose-lab/awesome-workplaces-skills All valuable skills to vibe coder | 2 | Claude Code, Codex, OpenCode | 3 | 316 tok |
| bketelsen/agentic-template Template for agent-maintained projects: canonical AGENTS.md instruction surface, four-ques | 2 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 1,503 tok |
| Tirefly/agent-harness-template User-level Agent Harness template (publicly sanitized version): specification layer + cogn | 2 | Codex, OpenCode | 1 | 2,871 tok |
| gorillabiscuit/AI-assisted-project-starter Starter setup for my claude code projects | 2 | Claude Code, Codex, OpenCode | 5 | 5,404 tok |
| Kibnet/Agents.md A shared, local-first instruction library for AI agents. Reuse the same rules, playbooks, | 2 | Codex, OpenCode | 1 | 1,196 tok |
| brn-mwai/scribe | 2 | Codex, OpenCode | 1 | 1,497 tok |
| paruff/uFawkesAI ufawkes.dev Template for AI-native development: Claude Code, OpenCode, Codex and Gemini CLI from one c | 2 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 12 | 2,170 tok |
| Gerg/ai_agent_skills Gerg's Signature® Instructions for AI Coding Agents | 2 | Codex, OpenCode | 1 | 310 tok |
| WagnerJust/buckle buckle — install a Hub-and-Spoke agent documentation skill (AGENTS.md + spokes) into Claud | 2 | Claude Code, Codex, OpenCode | 2 | 132 tok |
| skyfiredao/aia_kaiwu A workflow-oriented agent system that runs the same set of engineering roles across modern | 2 | Codex, OpenCode | 1 | 2,300 tok |
| mcw-wellness/ai-dev-blueprint Personal AI-assisted development blueprint — principles, playbooks, skills, templates. Tri | 2 | Codex, OpenCode | 1 | 780 tok |
| iptoux/repo-hc npmjs.com repo-hc is a developer npm package for automated GitHub housekeeping. It provides AI-agent | 2 | Claude Code, Codex, OpenCode | 2 | 3,388 tok |
| gabrielkuettel/algorand-vibe-code-guide | 2 | Claude Code, Codex, OpenCode | 2 | 5,122 tok |
| Code-Munkiz/ham ham-nine-mu.vercel.app The first code monkey launched into space. | 2 | Claude Code, Codex, Cursor, OpenCode | 32 | 8,783 tok |
| runtz-dev/runtz-skills | 2 | Claude Code, Codex, OpenCode | 2 | 336 tok |
| fayazara/oh-hi-mark oh-hi-mark.fayaz.workers.dev A little scratchpad application | 2 | Codex, OpenCode | 1 | 1,936 tok |
| hamzaali81/nestjs-agent-workflow-kit npmjs.com Shared agent standards and skills CLI for Nestjs projects | 2 | Claude Code, Codex, OpenCode | 6 | 668 tok |
| simonstone-dev/simonstone-codex-guidelines Codex-ready coding-agent guidelines adapted from Karpathy-inspired Claude guidelines. | 2 | Codex, OpenCode | 1 | 634 tok |
| thongton11314/agent-coding-template thongton11314.github.io AI development framework template — LLM wiki + code workflows | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 9,207 tok |
| gleanwork/configure-agents A collection of Claude plugins to help manage repositories in gleanwork | 2 | Claude Code, Codex, OpenCode | 2 | 408 tok |
| malmichaels-gif/agent-instructions-kit Keep your AGENTS.md and CLAUDE.md files consistent, safe, and lint-checked | 2 | Claude Code, Codex, OpenCode | 2 | 1,056 tok |
| windwu333/deepseek-tui-config DeepSeek TUI configuration files — SuperAI DevTeam v2.0 optimized | 2 | Codex, OpenCode | 1 | 1,891 tok |
| hiromaily/docs-ssot SSOT for Markdown documentation compiler and SSOT checker. | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 12 | 36,662 tok |
| psecor/agent-wiki | 2 | Codex, OpenCode | 1 | 4,177 tok |
| Ethonik/agentguard | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,680 tok |
| julianjear/karpathy-claude-file Karpathy-inspired CLAUDE.md / AGENTS.md for AI coding agents — with one critical addition: | 2 | Claude Code, Codex, OpenCode | 2 | 2,466 tok |
| uxname/LiteStack AI-agent-ready full-stack boilerplate: LiteEnd (NestJS/GraphQL) + LiteFront (React/Vite) a | 2 | Claude Code, Codex, OpenCode | 2 | 1,230 tok |
| gosuda/gosuda-template-go An official AI-native Golang bump-up template for gosuda repositories. | 2 | Claude Code, Codex, OpenCode | 2 | 1,669 tok |
| dwivedi-ai/ultimate-work | 2 | Claude Code, Codex, OpenCode | 5 | 1,808 tok |
| jaqubowsky/prmpt One command to set up any project for AI-first development with Claude Code | 2 | Claude Code, Codex, OpenCode | 4 | 655 tok |
| MadMorris/o16g-agentic-sdk Governance and orchestration framework for autonomous development driven by Artificial Int | 2 | Codex, OpenCode | 1 | 556 tok |
| romanroff/template-repo Universal project template repository with ready-to-use agent instructions, board/mileston | 2 | Claude Code, Codex, OpenCode | 2 | 1,317 tok |
| LokarBOA/kimiscope A window into Kimi, built by Kimi — standalone desktop UI for Kimi Code | 2 | Codex, OpenCode | 1 | 7,597 tok |
| Code-4-Community/branch Branch GitHub Admin | 2 | Codex, OpenCode | 1 | 1,657 tok |
| shaynlink/agent-OS | 2 | Codex, OpenCode | 1 | 1,005 tok |
| Hypercart-Dev-Tools/Love-2-Hug-Recipes | 2 | Codex, OpenCode | 1 | 12,828 tok |