23,196 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 agents7,571Claude Code6,627Data and AI3,684Backend and APIs3,492Languages3,401Planning3,221Git and workflow3,179Code review2,740Testing2,368Memory and context2,365Writing and docs2,309DevOps and cloud2,308Research2,298Frontend2,256Security2,015Productivity1,715
All Claude Code31,984 Codex23,196 OpenCode22,145 GitHub Copilot3,551 Gemini CLI1,917 Cursor1,736 Windsurf133 Kiro79
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| euxx/claude-skills-for-copilot GitHub Copilot agent skills adapted from Anthropic Claude plugins and OpenAI Codex Skills | 4 | Claude Code, Codex, OpenCode | 1 | 831 tok |
| DataRecce/recce-claude-plugin | 4 | Claude Code, Codex, OpenCode | 2 | 3,030 tok |
| 4rgon4ut/cc-zig-lsp Zig LSP plugin for Claude Code | 4 | Codex, OpenCode | 1 | 242 tok |
| jhoblitt/rook-claude Claude Code plugin marketplace for rook maintainers: code review, triage, and systemic-PR | 4 | Codex, OpenCode | 1 | 802 tok |
| napalmpapalam/skills A personal Claude Code plugin marketplace — a registry of plugins bundling skills, command | 4 | 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 | 4 | Claude Code, Codex, OpenCode | 3 | 2,225 tok |
| cpliakas/claude-code-engineering-leaders A Claude Code plugin providing engineering leadership agents — the virtual leadership team | 4 | Claude Code, Codex, OpenCode | 2 | 1,717 tok |
| fokkoru/ai-foo Reusable Claude Code plugins for development workflow | 4 | Claude Code, Codex, OpenCode | 2 | 3,995 tok |
| lespaceman/athena-workflow-marketplace A private claude plugin marketplace | 4 | Claude Code, Codex, OpenCode | 2 | 3,962 tok |
| agentic-utils/skills Custom Claude Code plugin marketplace with LSP servers (ty, Svelte) | 4 | Codex, OpenCode | 1 | 1,001 tok |
| jsell-rh/agentic-development-plugins Claude Code Plugins for Semi-Autonomous Agentic Development | 4 | Claude Code, Codex, OpenCode | 2 | 2,275 tok |
| thrashr888/thrashr888-agent-kit Claude Code plugins and marketplace | 4 | Claude Code, Codex, OpenCode | 3 | 1,912 tok |
| tajmahal226/compound-engineering-plugin every.to Official Claude Code compound engineering plugin | 4 | Claude Code, Codex, OpenCode | 4 | 3,629 tok |
| IT-HUSET/andthen Coding agent toolkit with workflows, guidelines, and plugins for Claude Code and other age | 4 | Claude Code, Codex, OpenCode | 4 | 3,511 tok |
| SoraSuegami/vibe-circuit Claude code plugin for vibe-coding circuits of programable cryptography (e.g., ZKPs) and t | 4 | Claude Code, Codex, OpenCode | 2 | 866 tok |
| vokako/kiro-web-search pypi.org Minimal MCP server exposing a web_search tool over stdio. Install in Claude Code via /plug | 4 | Claude Code, Codex, OpenCode | 1 | 1,017 tok |
| cluesmith/ci-channel Claude Code channel plugin for real-time CI/CD notifications (GitHub Actions, GitLab CI, G | 4 | Claude Code, Codex, OpenCode | 2 | 3,406 tok |
| karlorz/llm-wiki Multi-skill Claude Code plugin for Karpathy-style interlinked markdown knowledge bases. He | 4 | Claude Code, Codex, OpenCode | 2 | 1,162 tok |
| ekroon/opencode-copilot-instructions OpenCode plugin that loads GitHub Copilot custom instruction files | 4 | Codex, GitHub Copilot, OpenCode | 4 | 1,315 tok |
| pplancq/copilot-instructions A comprehensive guide of best practices, coding rules, and workflow automation for AI-assi | 4 | Claude Code, Codex, GitHub Copilot | 13 | 29,023 tok |
| Ayont/ayontclaudian ayontclaudian — Obsidian plugin embedding Claude Code, Codex, Antigravity & Kimi coding-ag | 4 | Claude Code, Codex, OpenCode | 2 | 2,926 tok |
| krzemienski/proofpunk krzemienski.github.io Proofpunk — execution-first delivery plugin for Claude Code, oh-my-pi (OMP), and OpenCode. | 4 | Claude Code, Codex, OpenCode | 2 | 1,572 tok |
| flanliulf/SpecLite Enterprise-grade workflow plugin for coding agents, with a complete and actionable AI deve | 4 | Claude Code, Codex, OpenCode | 5 | 81 tok |
| jpantsjoha/googlecloud-plugin A full Google Cloud delivery team for your coding agent — vendor-objective solution design | 4 | Codex, Gemini CLI, OpenCode | 2 | 985 tok |
| packtman/AI-Tools-Secure-Configs | 4 | Codex, OpenCode | 1 | 460 tok |
| madebywild/agent-rules wild.as Convert one set of agent rules into many providers' compliant versions | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,060 tok |
| HaoweiChan/tinboker tinboker.com Taiwanese stock & podcast intelligence — TW/US stock dashboard, relationship graph explore | 4 | Claude Code, Codex, OpenCode | 18 | 2,292 tok |
| prathamdby/skills 📚 A collection of my day-to-day skills. | 4 | Codex, OpenCode | 1 | 1,387 tok |
| jedmamosto/open-agent-engine The open-source compiler & multi-agent runtime for coding agents | 4 | Claude Code, Codex, OpenCode | 2 | 586 tok |
| tungpsit/haki-skills AI workflow system — project initialization, task planning, and execution with TDD-first a | 4 | Claude Code, Codex | 25 | — |
| Desquared/agents-rules-skills | 4 | Codex, OpenCode | 1 | 1,445 tok |
| Garyzhu-hub/software-controlled-skills | 4 | Claude Code, Codex, OpenCode | 4 | 292 tok |
| Haroon966/pinky-cursor | 4 | Claude Code, Codex, OpenCode | 2 | 1,860 tok |
| koldovsky/project-factory Self-improving, spec-driven multi-agent SDLC delivery framework — agent-agnostic plugin fo | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 795 tok |
| maccman/ai-expo-starter-template An AI ready starter template for building react-native apps | 4 | Codex, OpenCode | 1 | 2,116 tok |
| ArabAgentSkills/arab-payments-skill-atlas AI agent skill atlas for safer Arab/MENA payment and BNPL integrations. | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 803 tok |
| lesleslie/spline-mcp MCP server for Spline.design 3D scene orchestration | 4 | Claude Code, Codex, OpenCode | 2 | 1,308 tok |
| VoytechG/spec-driven-development Multi-area spec-driven development plugin for Claude Code, Codex, and Gemini CLI. Loads th | 4 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 868 tok |
| bop-clocktower/canary Canary — AI-powered test automation agent. Generate, review, recommend, and de-flake tests | 4 | Claude Code, Codex, OpenCode | 7 | 21,128 tok |
| Data-Wise/craft data-wise.github.io Full-stack developer toolkit - 86 commands, 8 agents, 21 skills for code, git, docs, testi | 4 | Claude Code, Codex, OpenCode | 2 | 3,351 tok |
| nbiish/gikendaasowin-aabajichiganan-mcp ᑭᑫᓐᑖᓱᐎᓐ ᐋᐸᒋᒋᑲᓇᓐ - Gikendaasowin Aabajichiganan - Cognitive Tools MCP server implemented fr | 4 | Codex, OpenCode | 1 | 801 tok |
| tkellogg/postal-mcp A mailbox system for two or more agents to communicate via MCP | 4 | Codex, OpenCode | 1 | 52 tok |
| redhat-community-ai-tools/igloo-mcp An unofficial MCP server for Igloo - a workspace intranet platform. | 4 | Codex, OpenCode | 1 | 361 tok |
| loong95/javadoc-mcp An MCP (Model Context Protocol) server that lets AI assistants browse JavaDoc documentatio | 4 | Codex, OpenCode | 1 | 530 tok |
| Sighthesia/interactive-choice-mcp An MCP Server that enables AI to provide options and launch an interactive interface for u | 4 | Claude Code, Codex, OpenCode | 7 | 3,094 tok |
| sandraschi/tailscale-mcp Operate your tailnet from AI tools using the Tailscale Admin API via FastMCP and webapp | 4 | Claude Code, Codex, Cursor, OpenCode | 4 | 1,646 tok |
| jokull/agent-cms Agent-first headless CMS on Cloudflare Workers. MCP-driven schema + content management, Gr | 4 | Claude Code, Codex, OpenCode | 2 | 720 tok |
| isaaccorley/planetary-computer-mcp A MCP Server for querying and downloading satellite imagery from the Planetary Computer ST | 4 | Codex, OpenCode | 1 | 1,493 tok |
| Timorleiderman/OpticMCP AI vision | 4 | Codex, OpenCode | 1 | 221 tok |
| pc035860/scratchpad-mcp lAn MCP server that provides shared scratchpads for Claude Code agents to collaborate and | 4 | Claude Code, Codex, OpenCode | 2 | 1,882 tok |