23,761 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 agents8,530Claude Code6,887Git and workflow3,618Data and AI3,582Backend and APIs3,558Languages3,485Planning3,325Code review2,903Testing2,691DevOps and cloud2,482Writing and docs2,481Memory and context2,373Research2,322Frontend2,310Security2,179Project management1,971
All Claude Code32,523 Codex24,842 OpenCode23,761 GitHub Copilot3,723 Gemini CLI2,038 Cursor1,771 Windsurf201 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| agungprasastia/toksave A zero-config CLI that securely installs and wires token-saving tools into AI coding agent | 5 | Claude Code, Codex, OpenCode | 2 | 1,284 tok |
| ValorVie/custom-skills Automated AI dev environment setup CLI with curated Skills collection for Claude Code and | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 5 | 4,485 tok |
| JackyYang258/agent-teacher Turns "explain X" into a code-driven lesson | 5 | Claude Code, Codex, OpenCode | 2 | 3,211 tok |
| liliang-cn/tagit TagIt — an open-source, self-hosted Claude Tag | 5 | Claude Code, Codex, OpenCode | 2 | 2,647 tok |
| Aquaticat/Monochromatic TypeScript and Rust monorepo: Claude Code and Pi coding-agent plugins, a minimal MCP stdio | 5 | Claude Code, Codex, OpenCode | 12 | 15,120 tok |
| sydneyvb-nl/tellur tellur.dev Local-first AI code provenance: line-level attribution, PR risk reports, policy checks, an | 5 | Claude Code, Codex, OpenCode | 1 | 6,300 tok |
| thuong-nc/perlytics-skill Disciplined analyst workflows for AI assistants — 16 skills for analytics, strategy, and d | 5 | Claude Code, Codex, OpenCode | 2 | 974 tok |
| panda850819/verbs personal skill pack | 5 | Claude Code, Codex, OpenCode | 2 | 828 tok |
| Madhurr/agit Agent-native git middleware — preserves AI reasoning in every commit | 5 | Codex, OpenCode | 1 | 719 tok |
| wangshunnn/claude-telemetry Agent Telemetry for Claude Code & Codex 🎯 | 5 | Codex, OpenCode | 1 | 743 tok |
| aiman-labs/ergouzi-agent-skills Public Agent Skills and Claude Code / Codex plugins for New API and reusable workflows. | 5 | Codex, OpenCode | 1 | 982 tok |
| dofbi/seddo 🤝 Seddo — Agent coordination via GitHub Gist. Wolof: séddo = partager. A shared space whe | 5 | Codex, OpenCode | 1 | 692 tok |
| joseph0926/prompt-shield prompt quality management for Claude Code | 5 | Claude Code, Codex, OpenCode | 2 | 3,654 tok |
| rshade/mcp-devtools-server rshade.github.io AI-powered development tools server for Claude Code and MCP clients. 40+ tools for Go, Nod | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 18 | 10,420 tok |
| lavallee/cub A CLI for Ralph + Beads-style development with harnesses like Claude Code and Codex | 5 | Claude Code, Codex, OpenCode | 24 | 9 tok |
| danygiguere/audit-skills Language- and framework-agnostic audit checklists for AI coding agents — security, correct | 5 | Claude Code, Codex, OpenCode | 2 | 1,611 tok |
| CyrusZhang23/AI-learning-by-claude-code Hands-on AI coding tools course (Claude Code as the main focus, including Codex/Gemini com | 5 | Claude Code, Codex, OpenCode | 5 | 3,771 tok |
| supermaciz/sessions-chronicle sessions-chronicle.maciz.dev A Gtk/Adwaita app to browse and search your AI coding sessions | 5 | Claude Code, Codex, OpenCode | 4 | 1,958 tok |
| Conradgui/loop-craft Turn goals, existing Skills, and authorized work records into bounded Agent Loops, then ex | 5 | Codex, OpenCode | 1 | 2,622 tok |
| DongDuong2001/pudo-code-system Modular, scalable, automated development intelligence. | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 8 | 1,949 tok |
| AiGuangInc/suxiaoqiang-cli superun.com sxq is the official command-line tool for Superun, the vibe coding platform. It syncs your | 5 | Codex, OpenCode | 1 | 402 tok |
| droxer/Synapse An open-source AI agent platform that does the work for you. | 5 | Claude Code, Codex, OpenCode | 2 | 1,312 tok |
| baldaworks/promptkitty npmjs.com PromptKit workflows for coding agents, the command line, and Go — agent skills plus determ | 5 | Codex, OpenCode | 1 | 1,407 tok |
| soia-team/soia-open-skills SOIA Skill ecosystem portal: authoritative specifications, Skill directory, and cross-repo | 5 | Codex, OpenCode | 1 | 839 tok |
| recallnet/codecontext Force agents to read critical context left by other agents, enforced by linting and freshn | 5 | Claude Code, Codex, OpenCode | 5 | 2,003 tok |
| hookdeck/agent-skills hookdeck.com Agent Skills for working with Hookdeck products — Event Gateway (webhooks/events) and Outp | 5 | Claude Code, Codex, OpenCode | 2 | 5,544 tok |
| markdavidgan/apple-dev-skills Apple platform development skills for Claude Code, Cursor, Kimi Code, Antigravity, Codex C | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 7,239 tok |
| hardiktiwari/PM-operating-OS An operating system for product managers — persistent product context, an on-demand skills | 5 | Codex, OpenCode | 1 | 442 tok |
| clix-so/skills docs.clix.so An open collection of agent skills for Clix. | 5 | Claude Code, Codex, OpenCode | 2 | 437 tok |
| netresearch/matrix-skill Three Agentic Skills for Matrix: encrypted chat with a daemon that follows rooms live, Syn | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 3,080 tok |
| Noshkoto/Noshy Your agent has amnesia. Noshy fixes that. Persistent memory for AI agents — LLM extraction | 5 | Codex, OpenCode | 1 | 771 tok |
| puristajs/harness purista.dev AI Harness build on top of typescript | 5 | Claude Code, Codex, OpenCode | 2 | 694 tok |
| nob-git-dev/agent-skills Portable Agent Skills for disciplined software delivery, learning, editing, and LLM evalua | 5 | Codex, OpenCode | 1 | 591 tok |
| devoncarew/flutter-slipstream Live Flutter app introspection for coding agents. | 5 | Claude Code, Codex, OpenCode | 3 | 434 tok |
| punt-labs/z-spec Creates, validates, and animates Z (and B) specifications from source and generates code f | 5 | Claude Code, Codex, OpenCode | 3 | 4,786 tok |
| ryne2010/harness-engineering-audit Codex skill for evidence-linked repository harness audits, scored assessments, and priorit | 5 | Codex, OpenCode | 1 | 288 tok |
| talesofai/okp cohub.live The context layer for AI agents — open, structured, searchable knowledge protocol (Domain | 5 | Codex, OpenCode | 1 | 1,441 tok |
| nobrainer-tech/nobrainer-tech-skills nobrainer.tech Portable agentic workflows for guarded autonomy, visible sessions, SDD, decisions, RCA, ev | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 4,743 tok |
| EthanM2025/game-design-lenses 100 game design lenses applied to your design artifacts via Claude Code or Codex. Auto-pic | 5 | Codex, OpenCode | 1 | 1,103 tok |
| dcc-mcp/dcc-mcp-maya-mgear dcc-mcp.github.io DCC-MCP agent skills for Autodesk Maya and mGear Shifter: inspect rigging components, crea | 5 | Codex, OpenCode | 1 | 1,340 tok |
| TGPSKI/catnip pate.sh Capture, analyze, visualize, and retain GitHub repo metrics locally with stdlib-only Pytho | 5 | Codex, OpenCode | 1 | 2,342 tok |
| ZuiTiti/Zuiti-Desktop Rather than being the smartest assistant, it aims to be the one that best understands emot | 5 | Codex, OpenCode | 1 | 2,083 tok |
| Miguell-J/mcp-one MCP-one is a central server that connects multiple independent MCP servers and exposes a u | 5 | Codex, OpenCode | 1 | 193 tok |
| hexxla/mosaic MCP server for agent memory over HexxlaDB—ring retrieval, embeddings + lexical search, sea | 5 | Codex, OpenCode | 1 | 427 tok |
| sandraschi/ai-games-collection Web-based games collection with 100+ games and AI opponents | 5 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 5 | 2,134 tok |
| bit2me-devs/bit2me-mcp mcp.bit2me.com Official MCP local server for Bit2Me digital assets platform | 5 | Codex, OpenCode | 1 | 5,152 tok |
| bookedsolidtech/helixir npmjs.com MCP server that gives AI coding agents deep knowledge of any web component library — prope | 5 | Claude Code, Codex, OpenCode | 35 | 1,572 tok |
| Bortlesboat/bitcoin-api Self-hostable Bitcoin fee intelligence API with optional MCP and x402 integrations. Former | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 4,843 tok |
| aetherwing-io/mish ohitsmish.com The LLM-native shell — five MCP tools for structured output, error diagnostics, and proces | 5 | Claude Code, Codex, OpenCode | 2 | 1,715 tok |
| ANFAIA/ClimaSafe Early warning system for heat and cold risk. Predicts personalized thermal mortality risk | 5 | Claude Code, Codex, OpenCode | 2 | 3,155 tok |