22,109 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 agents7,557Claude Code6,620Data and AI3,682Backend and APIs3,496Languages3,401Planning3,217Git and workflow3,165Code review2,733Testing2,364Memory and context2,364DevOps and cloud2,310Writing and docs2,303Research2,297Frontend2,252Security2,013Productivity1,710
All Claude Code31,977 Codex23,157 OpenCode22,109 GitHub Copilot3,551 Gemini CLI1,917 Cursor1,739 Windsurf129 Kiro79
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| mapbox/mcp-devkit-server Developer-focused Mapbox MCP Server | 60 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,920 tok |
| jkoelker/schwab-mcp Chat with your portfolio. | 60 | Codex, OpenCode | 1 | 1,949 tok |
| Oaklight/ToolRegistry toolregistry.readthedocs.io ToolRegistry: A Protocol-Agnostic Tool Management Library for Function-Calling LLMs (OpenA | 60 | Claude Code, Codex, OpenCode | 2 | 2,150 tok |
| 1c-neurofish/onec-client-mcp-devkit An MCP server implementation that runs in the 1C:Enterprise client | 60 | Claude Code, Codex, OpenCode | 3 | 483 tok |
| detaildotdesign/skill detail.design Skills that craft your projects with details. Micro interactions, extra considerations, wo | 60 | Codex, OpenCode | 1 | 595 tok |
| sandraschi/inkscape-mcp Headless Inkscape SVG automation via FastMCP — 60+ ops: create, boolean, LPE, export, text | 60 | Claude Code, Codex, Cursor, OpenCode | 6 | 718 tok |
| zjy1346/OpenThesis openthesis.cc.cd Open-source, model-agnostic AI company research for long-term investors. · An open-source, | 60 | Codex, OpenCode | 1 | 1,186 tok |
| Echo1LZJY/echo-kaoyan-english-skill Echo_Graduate Entrance Exam English SKILL: detailed analysis of past exam questions, trans | 60 | Claude Code, Codex, OpenCode | 3 | 1,380 tok |
| ilmenit/AltirraSDL Portable version of Altirra - 8bit Atari emulator by Avery Lee | 60 | Claude Code, Codex, OpenCode | 3 | 10,410 tok |
| AiToByte/SafeMask Enabling every line of data to safely embrace AI. After your content is processed by SafeM | 59 | Claude Code, Codex, OpenCode | 2 | 6,443 tok |
| VibeDrift/VibeDrift vibedrift.ai Ship agentic. Stay coherent. Self-checking code integrity for AI coding agents, via MCP. | 59 | Codex, OpenCode | 1 | 1,307 tok |
| guapimm/LLM-App-Mentor （LLM-App-Mentor）Turn your AI coding assistant into a cautious 10-year full-stack mentor — | 59 | Codex, OpenCode | 1 | 200 tok |
| corezoid/simulator-ai-plugin simulator.company Claude Code & Codex plugin for Simulator.Company — a Go MCP server exposing the platform R | 59 | Claude Code, Codex, OpenCode | 2 | 3,977 tok |
| FavioVazquez/learnship faviovazquez.github.io Learn as you build. Build with intent. Ship real products. Agentic engineering done right. | 59 | Claude Code, Codex, OpenCode, Windsurf | 41 | 4,697 tok |
| bnomei/kirby-mcp forum.getkirby.com CLI-first MCP server for composer-based Kirby CMS projects — inspect blueprints/templates/ | 59 | Codex, OpenCode | 1 | 860 tok |
| dosu-ai/decant dosu.dev Local-first analysis of Claude Code and Codex sessions: token spend, context windows, file | 59 | Claude Code, Codex, OpenCode | 2 | 1,515 tok |
| agentteamhq/agentteam-email agentteam.email Open-source email infrastructure for AI agents. | 59 | Claude Code, Codex, OpenCode | 2 | 2,172 tok |
| udecode/plate-template template.platejs.org Minimal Plate template with React 19, Next 16, Tailwind 4, MCP. | 59 | Claude Code, Codex, OpenCode | 5 | 1,397 tok |
| api7/aisix-archived api7.ai An open source, Native AI Gateway and LLM proxy built in Rust | 59 | Codex, OpenCode | 1 | 3,729 tok |
| color4-alt/CiteCheck Agent Skill: Check academic paper citations for format, queryability, thematic relevance, | 59 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,320 tok |
| Tools2U/AI-Website-Audit-CLI Open-source AI-powered website audit CLI using the OpenAI API for SEO, UX, accessibility, | 59 | Codex, OpenCode | 1 | 298 tok |
| TatsukiMeng/ai-native-engineering ai.mengchen.icu | 59 | Claude Code, Codex, OpenCode | 2 | 7,705 tok |
| moztw/www.moztw.org moztw.org Repository of moztw.org | 59 | Codex, OpenCode | 1 | 356 tok |
| Alexander-M-Dickerson/ai-asset-pricing Empirical Asset Pricing Tools | 59 | Claude Code, Codex, Gemini CLI, OpenCode | 56 | 3,707 tok |
| axiomhq/cli axiom.co The power of Axiom on the command line. | 59 | Claude Code, Codex, OpenCode | 2 | 1,025 tok |
| elroy-bot/elroy An AI assistant that remembers and sets goals | 59 | Claude Code, Codex, OpenCode | 2 | 535 tok |
| koriym/xdebug-mcp packagist.org Enable AI to debug PHP with Xdebug | 59 | Claude Code, Codex, OpenCode | 2 | 9,733 tok |
| duolongworld/AI_Renaissance AI Renaissance — Trend as Leverage, Signal as Pulse, Cognition as Wealth. | 59 | Codex, OpenCode | 1 | 923 tok |
| algoderiv/agent-skills Claude Code skills for China quant trading | 59 | Claude Code, Codex, OpenCode | 2 | 804 tok |
| sahadev/GitMemo gitmemo.kakacut.cn Auto-sync your AI conversations and notes to Git | 59 | Codex, OpenCode | 1 | 1,011 tok |
| hitosea/happy-next happy-next.com A multi-model AI workspace for Claude Code & Codex, featuring orchestration, realtime voic | 59 | Claude Code, Codex, OpenCode | 4 | 287 tok |
| aleyan/dela A task runner that delegates the work to other tools | 59 | Codex, Cursor, OpenCode | 2 | 150 tok |
| jozef-barton/the-kitchen | 59 | Claude Code, Codex, OpenCode | 2 | 4,284 tok |
| mybuddymichael/youtube-transcript-mcp An MCP server for fetching transcripts of YouTube videos. | 59 | Codex, OpenCode | 1 | 333 tok |
| thrashr888/agentkernel thrashr888.github.io Run AI coding agents in secure, isolated microVMs. Sub-125ms boot times, real hardware iso | 59 | Claude Code, Codex, OpenCode | 3 | 2,859 tok |
| subicura/purplemux A web-native terminal multiplexer for Claude Code & Codex — monitor and manage multiple se | 59 | Claude Code, Codex, OpenCode | 9 | 3,456 tok |
| matteing/opal 🔮 A smol coding agent in Elixir | 59 | Claude Code, Codex, OpenCode | 12 | 206 tok |
| zkbys/whiteboard | 59 | Claude Code, Codex, OpenCode | 2 | 1,537 tok |
| bborn/taskyou taskyou.dev Personal task queue | 59 | Claude Code, Codex, OpenCode | 1 | 3,949 tok |
| emson/elfmem sELF improving agent memory system | 59 | Claude Code, Codex, OpenCode | 2 | 4,333 tok |
| bug-ops/zeph bug-ops.github.io A memory-first AI agent that remembers why decisions were made — not just the last message | 59 | Codex, GitHub Copilot, OpenCode | 5 | 3,664 tok |
| SummerEngine/summer-engine-agent summerengine.com The game engine for AI agents. Give your AI superpowers for game dev + A skills framework | 59 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,477 tok |
| mitodl/ol-infrastructure Infrastructure automation code for use by MIT Open Learning | 59 | Codex, OpenCode | 1 | 2,163 tok |
| N0819/Sonder_Engine An engine for creating coherent fiction with LLMs through a persistent worldstate with det | 59 | Claude Code, Codex, OpenCode | 3 | 35,245 tok |
| btspoony/mstar-harness An omni-plugin for harness engineering workflows with multi-agents, programmatic gates and | 59 | Claude Code, Codex, OpenCode | 2 | 1,582 tok |
| wraps-team/wraps wraps.dev AWS Email, SMS, & CDN, simple. | 59 | Claude Code, Codex, OpenCode | 3 | 7,666 tok |
| typefully/agent-skills AI agent skills for drafting and scheduling social media posts via Typefully | 59 | Claude Code, Codex, OpenCode | 2 | 1,036 tok |
| Chip-G0202/PaperEcho Hear echoes from the literature and find research leads worth pursuing. A Codex-based mult | 59 | Codex, OpenCode | 1 | 13,794 tok |
| hermes-labs-ai/zer0dex hermes-labs.ai A local dual-layer memory pattern for AI agents: a compact, human-readable markdown index | 59 | Codex, OpenCode | 1 | 308 tok |
| raphaeltm/simple-agent-manager simple-agent-manager.org Run multiple coding agents in parallel on your own cloud VMs. | 59 | Claude Code, Codex, OpenCode | 33 | 8,677 tok |