43,730 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 agents7,670Claude Code6,650Data and AI3,673Backend and APIs3,507Languages3,392Planning3,227Git and workflow3,211Code review2,744Testing2,385Memory and context2,367Writing and docs2,330DevOps and cloud2,314Research2,288Frontend2,261Security2,032Productivity1,722
All Claude Code31,994 Codex23,359 OpenCode22,302 GitHub Copilot3,560 Gemini CLI1,917 Cursor1,740 Windsurf142 Kiro82
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| hirokita117/template-ai-coding-config A repository for managing document templates used when doing AI coding | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 12 | 2,595 tok |
| beettlle/CursorRules | 2 | Codex, OpenCode | 1 | 2,616 tok |
| usefulmove/enso agent harness protocol | 2 | Codex, OpenCode | 1 | 5,644 tok |
| HaizhuAI/HaizhuAgents Liu Haizhu Edition Codex Agent Instructions — CTF Lab 2.0 enhanced instruction set (AGENTS | 2 | Codex, OpenCode | 1 | 34,907 tok |
| AlexVo1980/llm-decomposition-mode | 2 | Codex, OpenCode | 1 | 104 tok |
| okfriansyah-moh/ares AI Repository Standard (ARS) — define portable AI coding knowledge once in .ai/, compose f | 2 | Claude Code, Codex, OpenCode | 6 | 1,516 tok |
| BEKO2210/Context-Engineering | 2 | Codex, OpenCode | 1 | 691 tok |
| vygoldensea-ux/skill_provip_claude | 2 | Codex, OpenCode | 1 | 700 tok |
| oddyblue/Less-Is-More-Skill Architecture-first workflow for coding agents to make cleaner, safer, more current code ch | 2 | Claude Code, Codex, OpenCode | 2 | 2,317 tok |
| kaandesu/fullstack4agents fullstack app template for agents to create complete apps with coordination with more prec | 2 | Codex, OpenCode | 1 | 939 tok |
| nchdatta/projectkit A layered Next.js reference app and host for the nextjs-kit and nextjs-frontend-kit Claude | 2 | Claude Code, Codex, OpenCode | 4 | 2,098 tok |
| sergeionlyart/codex-office-playbook Публичный стартовый набор для создания кастомных офисных workflow с Codex: AGENTS.md, skil | 2 | Codex, OpenCode | 1 | 522 tok |
| pprp/harness-over-harness harness over harness（Spec Doc Generation） | 2 | Codex, OpenCode | 1 | 4,077 tok |
| FlowStudy-team/flowstudy-infra Infrastructure, documentation, deployment, SQL initialization, Docker Compose, and shared | 2 | Codex, OpenCode | 1 | 1,541 tok |
| temporal-sa/temporal-java-template | 2 | Codex, OpenCode | 1 | 3,939 tok |
| volodchenkov/claude-sdlc-agents SDLC agent pack for Plane Conductor — 10 Claude Code agents grounded in industry methodolo | 2 | Claude Code | 1 | 476 tok |
| 0xenzyme/code-orb CLI-first coding agent with a future desktop path. | 2 | Claude Code, Codex, OpenCode | 2 | 1,324 tok |
| mpadmaraj/sample-agentic this project is to show how we can use agents.md, skills, mcp server | 2 | Claude Code, Cursor | 10 | — |
| JECT-Study/Zimdugo-4th-Client JECT Team 1, Cohort 4 FE | 2 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 6 | 4,916 tok |
| snoodleboot-io/prompticorn | 2 | Claude Code, Codex, OpenCode | 2 | 2,029 tok |
| meshulga/agents-doc | 2 | Claude Code | 1 | — |
| meteosimaji/cappuccino DiscordBOT agent code. | 2 | Codex, OpenCode | 1 | 31,195 tok |
| wate/MD-Ticket A lightweight text-based ticket management system. | 2 | Codex, OpenCode | 1 | 2,073 tok |
| are-es/paap Self-hosted LLM API gateway. One endpoint, 40+ providers. | 2 | Codex, OpenCode | 1 | 9,252 tok |
| tovrleaf/obscvratfi Official noisework website for Obscvrat | 2 | Codex, OpenCode | 1 | 4,116 tok |
| docxology/literature doi.org Python literature-review toolkit: unified search across arXiv, PubMed, Semantic Scholar, C | 2 | Codex, OpenCode | 1 | 2,892 tok |
| xlr8harder/aibb Git-backed bulletin boards and controlled forum harnesses for AI models | 2 | Codex, OpenCode | 1 | 715 tok |
| AlfonsoM0/cortex-md 🧠 Zero-dependency persistent memory for AI coding agents. Just Markdown. No servers, no d | 2 | Codex, OpenCode | 1 | 1,826 tok |
| Chachamaru127/codex-harness | 2 | Claude Code, Codex, OpenCode | 50 | 3,123 tok |
| vatana7/bootstrap-agent-template | 2 | Codex, OpenCode | 1 | 492 tok |
| m1em1e/vibecoding-tools-4codex-cn Sharing one I made for personal use. | 2 | Codex, OpenCode | 1 | 3,101 tok |
| katmin2001/kenzy_agent_ai_template | 2 | Codex, OpenCode | 2 | 445 tok |
| chentao326/agent-handoff Codex + Claude Code + Reasonix three-party collaboration workflow: a 6-stage handoff proto | 2 | Codex, OpenCode | 1 | 583 tok |
| epicurrents/core epicurrents.io A modular JavaScript library for neurophysiological data | 2 | Codex, OpenCode | 1 | 16,330 tok |
| amindell11/astronomical-home | 2 | Claude Code, Codex, OpenCode | 7 | 3,314 tok |
| sojipi/separate-vocals-skill Audio vocal separation using Meta's Hybrid Transformer Demucs — isolate human voice from b | 2 | Claude Code, Codex, OpenCode | 2 | 780 tok |
| skarpsill/SWAPI AI-ready SOLIDWORKS API knowledge base with parsed documentation, indexes, graphs, and aut | 2 | Codex, OpenCode | 1 | 534 tok |
| Caxson/proof-of-work A disciplined-engineer + persistent-self layer for Claude Code | 2 | Codex, OpenCode | 1 | 3 tok |
| theogravity/bun-elysiajs-starter-turbo-monorepo A starter monorepo for building APIs with Bun, ElysiaJS, Kysely, and Turborepo — includes | 2 | Claude Code, Codex, OpenCode | 3 | 4,547 tok |
| densmirnov/acme-labs ACME Labs — a minimal demonstration environment for the practical section “How to Build Yo | 2 | Codex, OpenCode | 1 | 574 tok |
| TuTouPower/repo_template Template repository | 2 | Claude Code, Codex, OpenCode | 3 | 219 tok |
| WorldKeeptrying/e_meng_jing_xi_book | 2 | Codex, OpenCode | 1 | 313 tok |
| mw10013/cloudflare-effect-react-router-saas | 2 | Codex, GitHub Copilot, OpenCode | 6 | 2,701 tok |
| Nemex81/solitario-classico-accessibile gioco di carte solitario classico in versione accessibile ai non vedenti | 2 | Claude Code, GitHub Copilot | 26 | 6,312 tok |
| andrejkaxz/Vanessa_for_AI Rules, Agent Skills, and a step catalog for Vanessa Automation for Codex, Claude Code, Ope | 2 | Claude Code, Codex, OpenCode | 2 | 887 tok |
| Elvis-WDev/ExpressJS-agent-context | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 14 | 1,454 tok |
| elanmed/agent-js A minimal agent harness | 2 | Codex, OpenCode | 1 | 764 tok |
| rrpauls/hermes-esra Evolutionary Self-Recursive Architecture for Hermes Agent — meta-skills, OODA, smart orche | 2 | Codex, OpenCode | 1 | 1,661 tok |
| gstark/agent-manager CLI and TUI tool for managing AI agent configurations across Claude Code and Codex | 2 | Claude Code, Codex, OpenCode | 2 | 39 tok |
| Henok0728/arada three member project for gdg project | 2 | Claude Code, Codex, OpenCode | 2 | 2,430 tok |