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 |
|---|---|---|---|---|
| khanxxy/obsidian-second-brain Universal Obsidian Second Brain template for AI agents. VAULT.md pattern, skill graph arch | 2 | Codex, OpenCode | 1 | 1,829 tok |
| guoshaoyang-pku/ngram-gap-lab Minimal clean reproduction of n-gram value memory induced replay-specific train/val gap on | 2 | Codex | 3 | — |
| Aviator-Coding/home-ops | 2 | Claude Code, Codex, OpenCode | 9 | 28,348 tok |
| HumanDealer/vibeproof Vibe-code anything. Ship like a senior. A drop-in rulebook + skills that turn any AI codin | 2 | Claude Code, Codex, Cursor, OpenCode | 3 | 1,673 tok |
| Kinolian1107/autohackmd Cross-platform AI Skill: auto-save and upload markdown notes to HackMD. Supports Cursor, O | 2 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 4,458 tok |
| ElliotOne/nl-spec-driven-ai-assisted-coding-agent-control Spec-driven, markdown-only control plane for AI-assisted coding with explicit agent bounda | 2 | Codex, OpenCode | 1 | 20 tok |
| Lee110110/Harness-Engineering A demo agent built around the Harness Engineering philosophy, focusing on workflow design, | 2 | Codex, OpenCode | 1 | 9,337 tok |
| panamini/Pagecraft Pagecraft turns a local Markdown vault into active memory for LLM agents. | 2 | Claude Code, Codex, OpenCode | 2 | 3,126 tok |
| serpbase-dev/serpbase-skill serpbase.dev Agent-portable SerpBase Google SERP API skill for Codex, Claude Code, opencode, OpenClaw, | 2 | Claude Code, Codex, OpenCode | 2 | 803 tok |
| gustavodembicki/ai-quality-knowledge | 2 | Codex, OpenCode | 1 | 820 tok |
| OndrejDrapalik/ai-config-swap Config-sharing repository for Claude Code skills, commands, and MCP server configurations | 2 | Claude Code, Codex, OpenCode | 2 | 553 tok |
| zjgao-spin/Autoresearch_MRsequence | 2 | Codex, OpenCode | 1 | 2,279 tok |
| hovnatan/dotfiles linux config files | 2 | Claude Code, Codex, OpenCode | 3 | 326 tok |
| kanecro/andy Universal agent harness | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,827 tok |
| luisalima/agent-policy-kit Repo-local operating policy and skills for coding agents | 2 | Codex, OpenCode | 1 | 185 tok |
| jondoescoding/jondoescoding-coding-rules nightshadeai.xyz CLI tool to manage custom AI coding rule templates for enhanced AI-assisted development | 2 | Codex, OpenCode | 1 | 125 tok |
| kasuga77/nekomusume-agents | 2 | Codex, OpenCode | 1 | 3,039 tok |
| samhotchkiss/agentic-dev-starter Context management practices and prompts for LLM-driven projects. Companion repo for 'Mana | 2 | Codex, OpenCode | 1 | 972 tok |
| fungusdesu/cs486-project Campus Space Management System | 2 | Claude Code, Codex, OpenCode | 3 | 1,146 tok |
| commrelayunit/in-my-voice Write in your own captured voice and flag generic AI-sounding phrasing before it ships. | 2 | Codex, OpenCode | 1 | 548 tok |
| gustavo-meilus/aiboarding Keep AGENTS.md alive: generate, compress, audit, and update AI-agent onboarding for Claude | 2 | Claude Code, Codex, OpenCode | 7 | 659 tok |
| atebites-hub/PJTemplate | 2 | Claude Code, Codex, OpenCode | 5 | 5,358 tok |
| hyperactdoting/composer-plugin usecomposer.app Composer plugin for Claude Code, Codex CLI, and other agentic terminals — collaborate with | 2 | Codex, OpenCode | 1 | 439 tok |
| yashs33244/the_y_coding_standard | 2 | Codex, OpenCode | 1 | 828 tok |
| Dimkox/adaptive-grok-build-pro Adaptive Grok Build Pro — enterprise-style adaptive workflow for Grok Build | 2 | Claude Code, Codex, OpenCode | 38 | 2,769 tok |
| iamv4g/dnd_kit iamv4g.github.io Flutter drag-and-drop toolkit with core widgets, sensors, measuring, overlays, and sortabl | 2 | Codex, OpenCode | 1 | 405 tok |
| sjquant/skul skul.solaqua.dev Manage project-scoped personal AI configuration bundles (skills, commands, agents) for AI | 2 | Claude Code, Codex, OpenCode | 2 | 247 tok |
| fsimonelli/html-presentation-template Zero-dependency HTML presentation system with synced presenter window and speaker notes | 2 | Claude Code, Codex, OpenCode | 2 | 3,556 tok |
| RemiFabre/agentic_video_montage | 2 | Codex, OpenCode | 1 | 10,951 tok |
| cjerochim/compound-workflow Skills, commands and agents to utilise for development workflow. Inspired by Compound Engi | 2 | Codex, OpenCode | 1 | 1,820 tok |
| stephanemalho/multi-harness-agent-template Reusable starter structure for technical projects that use several coding-agent harnesses | 2 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 1,790 tok |
| abuxton/terraform-data-env | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 12 | 1,633 tok |
| newtontech/PKU_PhD_Latex_Templete | 2 | Claude Code, Codex, OpenCode | 2 | 3,556 tok |
| geeky118/HarnessEngineering HarnessEngineering | 2 | Codex, OpenCode | 1 | 474 tok |
| SymbolicLight-AGI/GovernSpec Local-first YAML governance contract compiler for AI agent artifacts. | 2 | Codex, OpenCode | 1 | 422 tok |
| 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 |
| Felpborges/projeto-prospecta | 2 | Claude Code, Codex, OpenCode | 2 | 2,643 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 |