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 |
|---|---|---|---|---|
| chaichiang/gtm-expert Source-traceable GTM diagnosis, expert perspectives, and actionable experiments. | 5 | Claude Code, Codex, OpenCode | 2 | 479 tok |
| Korner83/ai-development-methodology korner83.github.io Markdown + git methodology for human and AI software teams: planning, Definition of Done, | 5 | Codex, OpenCode | 1 | 802 tok |
| LBT-AI/toolnet-memory | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,446 tok |
| OITApps/oitvoip-mcp-server OITVOIP MCP Server for NetSapiens Platform Integration - Comprehensive MCP server providin | 5 | Claude Code, Codex, OpenCode | 2 | 486 tok |
| codeprimate/math-mcp MCP server providing symbolic mathematics for Cursor AI and Claude Desktop. Solve equation | 5 | Codex, OpenCode | 1 | 1,069 tok |
| Leo-maomao/pm-copilot Product manager AI Agent workflow kit for generating PRDs, tracking plans, clickable proto | 5 | Claude Code, Codex, OpenCode | 2 | 534 tok |
| yapota2018/affaan-m-everything-claude-code | 5 | Claude Code, Codex, OpenCode | 58 | — |
| claude-office-skills/claude-wps-word-plugin WPS Office Word AI document assistant — write, polish, and format documents using natural | 5 | Codex, OpenCode | 1 | 917 tok |
| ystreibel/logseq-wiki Skill-based framework for building and maintaining a Logseq knowledge base using AI coding | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, Kiro, OpenCode | 44 | 5,599 tok |
| douglance/sdlc-plugin Skill-centric SDLC plugin for Claude Code: lifecycle phases as skills routing to specializ | 5 | Claude Code, Codex, OpenCode | 2 | 424 tok |
| napalmpapalam/skills A personal Claude Code plugin marketplace — a registry of plugins bundling skills, command | 5 | Claude Code, Codex, OpenCode | 2 | 1,632 tok |
| sebmartin/ai-workspace-plugin A structured workspace for AI-assisted development with Claude Code. Manage long-running d | 5 | Claude Code, Codex, OpenCode | 3 | 2,225 tok |
| racecraft-lab/racecraft-plugins-public code.claude.com Open-source Claude Code plugins from Racecraft Lab | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 50 | 5,825 tok |
| karlorz/llm-wiki Multi-skill Claude Code plugin for Karpathy-style interlinked markdown knowledge bases. He | 5 | Claude Code, Codex, OpenCode | 2 | 1,301 tok |
| krzemienski/proofpunk krzemienski.github.io Proofpunk — execution-first delivery plugin for Claude Code, oh-my-pi (OMP), and OpenCode. | 5 | Claude Code, Codex, OpenCode | 2 | 1,572 tok |
| ArabAgentSkills/arab-payments-skill-atlas AI agent skill atlas for safer Arab/MENA payment and BNPL integrations. | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 803 tok |
| bop-clocktower/canary Canary — AI-powered test automation agent. Generate, review, recommend, and de-flake tests | 5 | Claude Code, Codex, OpenCode | 7 | 28,135 tok |
| sandraschi/tailscale-mcp Operate your tailnet from AI tools using the Tailscale Admin API via FastMCP and webapp | 5 | Claude Code, Codex, Cursor, OpenCode | 4 | 1,645 tok |
| jokull/agent-cms Agent-first headless CMS on Cloudflare Workers. MCP-driven schema + content management, Gr | 5 | Claude Code, Codex, OpenCode | 2 | 720 tok |
| pc035860/scratchpad-mcp lAn MCP server that provides shared scratchpads for Claude Code agents to collaborate and | 5 | Claude Code, Codex, OpenCode | 2 | 1,882 tok |
| washyu/homelab_mcp MCP Server for intelligent infrastructure management for your Homelab | 5 | Claude Code, Codex, OpenCode | 2 | 3,107 tok |
| bitbankinc/bitbank-lab-mcp Experimental MCP Server | 5 | Claude Code, Codex, Cursor, OpenCode | 7 | 2,664 tok |
| eddinsw/amp-mcp-server A simple MCP server that wraps CubeCoders Application Management Panel | 5 | Codex, OpenCode | 1 | 4,023 tok |
| Luko248/css-first | 5 | Codex, OpenCode | 1 | 611 tok |
| aspose-words/Aspose.Words-MCP Aspose.Words MCP Server | 5 | Codex, OpenCode | 1 | 792 tok |
| Jelloeater/activitywatch-mcp-server-py ActivityWatch MCP Server | 5 | Codex, OpenCode | 1 | 3,362 tok |
| 123pc/Geogebra_mcp A tool that can help cc/ codex to use geogebra | 5 | Claude Code, Codex, OpenCode | 2 | 580 tok |
| Knuckles-Team/media-downloader Download videos and audio from the internet! Out of the box A2A Server and MCP Server | 5 | Claude Code, Codex, OpenCode | 2 | 4,371 tok |
| ramm/fantastical-cli Fantastical CLI and MCP | 5 | Codex, OpenCode | 1 | 3,895 tok |
| JVinceW/uasset-reference-memory-mcp | 5 | Claude Code, Codex, OpenCode | 2 | 387 tok |
| JochenYang/agent-comm-hub One local endpoint, any MCP-capable agent — MiniMax Code, Claude Code, opencode, Codex, Ge | 5 | Codex, OpenCode | 1 | 8,634 tok |
| dstrupl/vardoger Personalize AI coding assistants (Cursor, Claude Code, Codex, OpenClaw, Copilot CLI, Winds | 5 | Codex, OpenCode | 1 | 1,510 tok |
| Walvez/grok-subagent Use the official Grok Build CLI as a controlled external subagent for Codex via ACP and MC | 5 | Codex, OpenCode | 1 | 591 tok |
| godlewis/zendao-mcp ZenTao MCP Server | 5 | Claude Code, Codex, OpenCode | 5 | 286 tok |
| mbk-dev/okama-mcp MCP server providing investment analysis tools backed by the okama Python library | 5 | Claude Code, Codex, OpenCode | 6 | 2,096 tok |
| nuxeo/nuxeo-mcp-server Nuxeo MCP Server | 5 | Codex, OpenCode | 1 | 5,048 tok |
| GabrielBBaldez/Notify-Hub gabrielbbaldez.github.io One API. Every channel. Unified notification library for Java and Spring Boot. | 5 | Claude Code, Codex, OpenCode | 2 | 5,475 tok |
| u2n4/video-url-analyzer-mcp MCP server to analyze YouTube, TikTok & Instagram videos from URL — transcripts, AI insigh | 5 | Claude Code, Codex, OpenCode | 2 | 3,962 tok |
| Lipdog/fossick-mcp pypi.org Search all of GitHub from your AI agent — find libraries, drill into repos, search code pa | 5 | Claude Code, Codex, OpenCode | 2 | 2,349 tok |
| The-40-Thieves/codecalc the40thieves.dev Universal code & logic calculator for AI models: 51 MCP tools across 31 languages. Rust-sa | 5 | Claude Code, Codex, OpenCode | 2 | 222 tok |
| jack1590/RokuMCP Roku MCP Server -- A Model Context Protocol (MCP) server that enables LLM-driven automatio | 5 | Codex, OpenCode | 1 | 2,836 tok |
| p1va/symbols MCP to read, inspect and navigate codebase symbols by connecting to a Language Server | 5 | Claude Code, Codex, OpenCode | 5 | 2,592 tok |
| navapbc/rebar Rebar can block work until an AI plan review passes, require signed completion verificatio | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 11,080 tok |
| qso-graph/adif-mcp qso-graph.io MCP server for ADIF 3.1.7: the specification's fields and enumerations, and validating and | 5 | Claude Code, Codex, OpenCode | 2 | 565 tok |
| PodcastAPI/skills podcastapi.com Agent Skills for podcast research (podcast mcp) and building secure applications with the | 5 | Codex, OpenCode | 1 | 271 tok |
| VirajMishra1/loadout npmjs.com Discover, curate, and activate skills across 12 coding agents—then hand off and coordinate | 5 | Claude Code, Codex, OpenCode | 2 | 173 tok |
| yingying-chu/class-action-finder yingying-chu.github.io An AI skill for Claude, Codex, and ChatGPT that scans your email for class action settleme | 5 | Claude Code, Codex, OpenCode | 2 | 3,710 tok |
| apideck-libraries/api-skills developers.apideck.com One abstraction, 146 SaaS connectors. Agent skills for Apideck's Unified API — integrate S | 5 | Codex, OpenCode | 1 | 975 tok |
| po4yka/llm-wiki-skills Portable Agent Skills for building, operating, evaluating, and governing LLM-Wiki knowledg | 5 | Claude Code, Codex, OpenCode | 2 | 1,329 tok |
| ondrej-merkun/skill-audit npmjs.com Scan every AI agent skill on your machine for prompt injection and malicious code. Fast lo | 5 | Claude Code, Codex, OpenCode | 2 | 3,369 tok |