32,564 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 agents8,576Claude Code6,909Git and workflow3,638Data and AI3,577Backend and APIs3,561Languages3,499Planning3,322Code review2,907Testing2,704DevOps and cloud2,498Writing and docs2,488Memory and context2,373Research2,320Frontend2,317Security2,182Project management1,989
All Claude Code32,564 Codex24,947 OpenCode23,868 GitHub Copilot3,726 Gemini CLI2,040 Cursor1,770 Windsurf203 Kiro117
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| figitaki/reviews reviews.figitaki.dev Code review tool for arbitrary diffs | 8 | Claude Code, Codex, OpenCode | 2 | 1,640 tok |
| navarroido/Woocommerce-skill | 8 | Claude Code | 1 | 903 tok |
| finelagusaz/ja-writing-tools Claude Skills for Japanese writing assistance | 8 | Claude Code | 1 | 300 tok |
| JayTheSkier/fedlex-connector MCP server for accessing Swiss federal legislation from fedlex.admin.ch | 8 | Claude Code | 1 | 362 tok |
| yeaight7/agent-powerups Curated power-ups for coding agents: skills, slash commands, MCP configs, hooks, AGENTS.md | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,477 tok |
| sgomez/developer-skills Unattended PRD delivery for Claude Code | 8 | Claude Code, Codex, OpenCode | 3 | 1,839 tok |
| chenyuxiaojin/xiaochen-skills blog.xiaochens.com 17 Claude Code plugins / 19 skills for video, publishing, Obsidian, GEO and real content w | 8 | Claude Code, Codex, OpenCode | 2 | 1,589 tok |
| sparklingneuronics/sparkling-skills sparklingneuronics.ai Give Claude Code a second opinion — run OpenAI Codex & Google Gemini from inside Claude Co | 8 | Claude Code | 1 | 1,214 tok |
| rootcastleco/rei-skills rootcastleco.github.io The engineering-grade skill layer for AI agents. 895 validated skills, 21 AI adapters, wor | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,969 tok |
| davebream/claude-of-alexandria Claude plugin for rigorous biblical study. TDD-built to prevent AI failures: psychologizin | 8 | Claude Code | 2 | 6,188 tok |
| decantr-ai/decantr decantr.ai Decantr AI design intelligence layer for AI-generated web applications | 8 | Claude Code | 1 | 8,678 tok |
| yyordanov-tradu/stock-scanner-mcp MCP server providing stock and crypto market data tools for Claude Code | 8 | Claude Code | 3 | 2,102 tok |
| samsebeingener/visbug-mcp-ru samsebeingener.ru VisBug → Cursor bridge: visual edits on localhost → clipboard → paste into chat → agent pa | 8 | Claude Code, Cursor | 3 | — |
| thuandiep1707/codex-harness-javascript Multi-agent harness for OpenAI Codex with Jira-backed workflows, pause/resume, progressive | 8 | Claude Code, Codex, OpenCode | 13 | 12,421 tok |
| vassiliylakhonin/agenda-intelligence-md output-verification.agendamcp.dpdns.org Local evidence checks for AI agents and RAG. Catch broken citations, quote mismatches and | 8 | Claude Code, Codex, OpenCode | 2 | 3,775 tok |
| ljchang/mecha docs.mecha-factory.ai A standalone agent harness in Rust: a provider-agnostic loop, MCP tools, a path jail and p | 8 | Claude Code, Codex, OpenCode | 4 | 10,341 tok |
| sam-david/unreal-mcp The most comprehensive MCP server for Unreal Engine — 127 tools across 16 subsystems, 4 tr | 8 | Claude Code | 1 | 1,131 tok |
| MidnightDarling/collate Chinese-language literature OCR proofreading and reading pipeline for historical researche | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 2 | 9,613 tok |
| uselayout/cli layout.design Layout CLI + MCP server — design system context for AI coding agents | 8 | Claude Code | 3 | 266 tok |
| lukasmetzler/agenteval Lint, benchmark, and score your AI coding instructions. Stop guessing, start measuring. | 8 | Claude Code, GitHub Copilot | 3 | 1,534 tok |
| counterposition/pi Skills, extensions, and packages for the Pi coding agent | 8 | Claude Code, Codex, OpenCode | 2 | 269 tok |
| Xipher-Labs/walter-os Self-hostable AI-agent operations framework by Xipher Labs | 8 | Claude Code, Codex, OpenCode | 2 | 7,868 tok |
| cekura-ai/cekura-skills Claude Plug-Ins & Skills for Cekura | 8 | Claude Code, Gemini CLI | 2 | 16,191 tok |
| clawnify/greybeard Behavioral guidelines for AI coding agents — drop into CLAUDE.md / AGENTS.md to reduce com | 8 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 15,123 tok |
| moberghr/mtk-agent-toolkit moberghr.github.io A Claude Code plugin that enforces your team's coding standards, security policies, and re | 8 | Claude Code, Codex, OpenCode | 43 | 2,344 tok |
| kint4/autoframe AI-native QA automation framework — Playwright + TypeScript + k6 + Allure with 14 built-in | 8 | Claude Code | 15 | 4,002 tok |
| leefowlercu/agent-kit My Codex / Claude Code Plugin Marketplace | 8 | Claude Code, Codex, OpenCode | 2 | 979 tok |
| L3DigitalNet/Claude-Code-Plugins Plugins for Claude Code | 8 | Claude Code, Codex, OpenCode | 4 | 2,068 tok |
| Data-Wise/himalaya-mcp data-wise.github.io Privacy-first email MCP server + Claude Code plugin wrapping himalaya CLI | 8 | Claude Code, Codex, OpenCode | 2 | 9,317 tok |
| anotherpanacea-eng/apodictic APODICTIC: AI Developmental Editing Plugin for Claude | 8 | Claude Code, Codex, OpenCode | 3 | 3,923 tok |
| futuregerald/futuregerald-claude-plugin | 8 | Claude Code | 1 | 6,375 tok |
| cdeistopened/kdp-kings-wiki Ask KDP Kings — Claude Code plugin for Amazon self-publishing. 12 skills, 15 framework gui | 8 | Claude Code | 1 | 1,406 tok |
| chicken-noodle-chris/tome Tome is a Claude Code plugin and a CLI tool with skills and scripts to create an llm-wiki | 8 | Claude Code | 1 | 409 tok |
| BENZEMA216/music-analyzer Claude Code plugin — analyze audio files, extract musical features, generate Dreamina prom | 8 | Claude Code | 10 | 632 tok |
| TheDecipherist/classmcp classmcp.com MCP server for AI-assisted CSS development. 77% token savings with semantic class patterns | 8 | Claude Code | 1 | 720 tok |
| epodivilov/garmin-connect-mcp MCP server for Garmin connect | 8 | Claude Code | 7 | 1,600 tok |
| essentialproject/essential-view-builder-mcp This MCP (Model Context Protocol) server provides tools and resources for building high-qu | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 373 tok |
| Aaronjacobs000/sophos-central-mcp | 8 | Claude Code | 1 | 1,304 tok |
| s-morgan-jeffries/omnifocus-mcp MCP server for OmniFocus integration - enables Claude and other MCP clients to interact wi | 8 | Claude Code | 10 | — |
| uyu423/requarks-wiki-mcp npmjs.com MCP server for Wiki.js knowledge-base read/write operations | 8 | Claude Code, Codex, OpenCode | 3 | 2,856 tok |
| moonx010/hive-memory npmjs.com Cross-project memory for AI coding agents. MCP server that maintains context, decisions, a | 8 | Claude Code, Codex | 5 | 2,134 tok |
| thebtf/netcoredbg-mcp | 8 | Claude Code, Codex, OpenCode | 2 | 3,643 tok |
| Remskill/Cortex Cortex: Open-Source AI Memory for your Codebase. Works with Claude CLI and others. It inde | 8 | Claude Code | 1 | 1,401 tok |
| jazzsequence/5eMCP | 8 | Claude Code, Codex, OpenCode | 2 | 3,626 tok |
| koshimazaki/UE-AUDIO-MCP Game audio systems generation via MCP. Wwise + MetaSounds + Blueprint — complete audio wor | 8 | Claude Code, Codex, OpenCode | 8 | 213 tok |
| u33pk/mitmproxy-mcp | 8 | Claude Code, Codex, OpenCode | 2 | 4,470 tok |
| agatho/trinitycore-mcp Model Context Protocol server for TrinityCore development | 8 | Claude Code | 5 | — |
| GangGreenTemperTatum/fbdl-mcp facebook.com MCP Server for Meta Hackers, use agents to create FBDL scripts. FBDL is a tool designed to | 8 | Claude Code, Codex, OpenCode | 5 | 3,464 tok |
| gdigora/yandex-mail-mcp MCP server for Yandex Mail - read, search, and send emails via IMAP/SMTP | 8 | Claude Code | 2 | 428 tok |
| gpulga/ableton-dj-mcp MCP server for AI-assisted electronic music production in Ableton Live | 8 | Claude Code, Codex, OpenCode | 2 | 1,499 tok |