22,170 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 agents7,588Claude Code6,636Data and AI3,676Backend and APIs3,496Languages3,402Planning3,219Git and workflow3,187Code review2,745Testing2,374Memory and context2,364DevOps and cloud2,310Writing and docs2,309Research2,295Frontend2,261Security2,021Productivity1,715
All Claude Code31,998 Codex23,222 OpenCode22,170 GitHub Copilot3,550 Gemini CLI1,918 Cursor1,738 Windsurf137 Kiro80
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| BjornMelin/dev-skills AgentSkills library: reusable skills for AI coding agents (AI SDK, Codex, LangGraph, Supab | 7 | Codex, OpenCode | 1 | 4,549 tok |
| Wolfe-Jam/faf-mcp faf.one Persistent Project Context for Cursor, IDEs and VS Code — IANA-registered .faf format · 29 | 7 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 5 | 2,474 tok |
| widnyana/eyay-toolkits Agents don’t behave, they swarm. Skills and plugins slot in mid flight, and somehow the wh | 7 | Codex, OpenCode | 1 | 4 tok |
| vibeknow/cli vibeknow.ai Official VibeKnow CLI — turn documents and URLs into professional videos in one command. B | 7 | Codex, OpenCode | 1 | 5,873 tok |
| samzong/agent-brains Personal agent brain catalog for coding agents: AGENTS.md, SOUL.md, MEMORY.md, skills, wor | 7 | Codex, OpenCode | 1 | 547 tok |
| sgomez/developer-skills Unattended PRD delivery for Claude Code | 7 | Claude Code, Codex, OpenCode | 3 | 1,679 tok |
| athal7/dotfiles | 7 | Codex, OpenCode | 1 | 1,021 tok |
| stewie-sh/agent-crystallize Local-first checkpoints and crystals for long-running AI coding agent sessions. | 7 | Claude Code, Codex, OpenCode | 2 | 467 tok |
| hutzelmann/thesis-proposal-skills skills.sh Write a convincing thesis proposal with support from AI | 7 | Claude Code, Codex, OpenCode | 3 | 4,668 tok |
| TAKEOFF69/codex-skills-kit Task-typed prompt-engineering Agent Skills for OpenAI Codex. | 7 | Codex, OpenCode | 1 | 714 tok |
| sodam-ai/SoDam-Design-Kit Claude Code design automation plugin that converts Figma designs into shadcn/ui code and c | 7 | Codex, OpenCode | 1 | 550 tok |
| cyanheads/eur-lex-mcp-server npmjs.com Search EU legislation, CJEU case law, and treaties; traverse the CELLAR relationship graph | 7 | Claude Code, Codex, OpenCode | 2 | 13,768 tok |
| Devlaner/loomy loomy.devlane.dev Loomy is an open-source collaborative whiteboard. Create infinite boards, invite your team | 7 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 4,094 tok |
| nikzlabs/shipit ship-it.ai Self-hosted, chat-driven IDE for running coding agents through your real engineering loop | 7 | Claude Code, Codex, OpenCode | 18 | 11,159 tok |
| DikshitRJ/quickfill-mcp npmjs.com Instant Generative UI MCP Server for AI Agents. Turn static AI chats into live, hot-reload | 7 | Claude Code, Codex, OpenCode | 2 | 764 tok |
| anivar/jest-skill skills.sh AI agent skill for Jest 29/30 — 28 rules: mocks, async, timers, snapshots, CI. Works with | 7 | Codex, OpenCode | 1 | 5,070 tok |
| openma-ai/backchat backchat.openma.dev Local-first desktop workspace for ACP agents—DeepSeek Harness, Claude Code, Codex, Gemini | 7 | Claude Code, Codex, OpenCode | 2 | 988 tok |
| MidnightDarling/collate Chinese-language literature OCR proofreading and reading pipeline for historical researche | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 2 | 9,613 tok |
| Marcelo-Barella/Cursor-CA-Orchestrator | 7 | Codex, OpenCode | 1 | 732 tok |
| tonyghiani/ai-essentials My personal AI essentials for rules, skills. subagents and more. | 7 | Claude Code, Codex, OpenCode | 1 | 1,354 tok |
| jeunecraack/talisman-skill Talisman — turn a codebase into a beautiful, brand-styled PDF guide (LaTeX→PDF). An agent | 7 | Codex, OpenCode | 1 | 865 tok |
| jnorthrup/TrikeShed my (++Bike)shed ideas | 7 | Codex, OpenCode | 1 | 122 tok |
| clawnify/greybeard Behavioral guidelines for AI coding agents — drop into CLAUDE.md / AGENTS.md to reduce com | 7 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 14,743 tok |
| moberghr/mtk-agent-toolkit moberghr.github.io A Claude Code plugin that enforces your team's coding standards, security policies, and re | 7 | Claude Code, Codex, OpenCode | 60 | 5,884 tok |
| bitflight-devops/skilllint The best platform agnostic Linter for AI agent plugins and skills — validates structure, f | 7 | Claude Code, Codex, OpenCode | 6 | 3,399 tok |
| ajhcs/healthcare-data-mcp 18 local MCP servers for public healthcare market intelligence: facilities, ownership, qua | 7 | Codex, OpenCode | 1 | 54 tok |
| aws-geospatial/amazon-location-agent-context Amazon Location Service context for AI coding assistants — available as Kiro Powers, Claud | 7 | Claude Code, Codex, OpenCode | 2 | 2,436 tok |
| alexmond/alexmskills alexmond.org A curated Claude Code plugin marketplace of reusable, self-improving skills and agents — e | 7 | Claude Code, Codex, OpenCode | 3 | 6,263 tok |
| microsoft/github-advisory-mcp MCP tools for semantic search in github/advisory-database | 7 | Codex, OpenCode | 1 | 1,159 tok |
| sumithr/sumo-qa pypi.org MCP server that brings senior-QA discipline to AI coding assistants — test planning, TDD, | 7 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 2,294 tok |
| essentialproject/essential-view-builder-mcp This MCP (Model Context Protocol) server provides tools and resources for building high-qu | 7 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 373 tok |
| SethGame/mcp_flexsim mcp server for FlexSim | 7 | Codex, OpenCode | 1 | 700 tok |
| pwelty/mcp_trilium paulwelty.com 🌳 Model Context Protocol (MCP) server for Trilium Notes - Connect your knowledge base to | 7 | Claude Code, Codex, OpenCode | 2 | 181 tok |
| jazzsequence/5eMCP | 7 | Claude Code, Codex, OpenCode | 2 | 3,626 tok |
| u33pk/mitmproxy-mcp | 7 | Claude Code, Codex, OpenCode | 2 | 4,470 tok |
| sandraschi/filesystem-mcp FastMCP 3.2.0+ server plus webapp for comprehensive file system operations, Git repository | 7 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 8 | 1,627 tok |
| GangGreenTemperTatum/fbdl-mcp facebook.com MCP Server for Meta Hackers, use agents to create FBDL scripts. FBDL is a tool designed to | 7 | Claude Code, Codex, OpenCode | 5 | 3,464 tok |
| venikman/fpf-memory mcp.fpf.sh Hosted MCP server + slim wiki projection of the First Principles Framework (FPF) by Anatol | 7 | Claude Code, Codex, OpenCode | 2 | 2,838 tok |
| pgmnemo/pgmnemo pgmnemo.com Multi-agent memory substrate for PostgreSQL — provenance-gated, vector-hybrid recall | 7 | Codex, OpenCode | 1 | 8,496 tok |
| SlideSpeak/slidespeak-onbrand slidespeak.co Design context for AI agents | 7 | Claude Code, Codex, OpenCode | 7 | 186 tok |
| jzjzzzzzzz/IntentForge Intent-preserving deterministic CAD pipeline for editable, validated CadQuery models. | 7 | Codex, OpenCode | 1 | 207 tok |
| tough-tongue/toughtongue-skills toughtongueai.com Agent skills and MCP server for Tough Tongue AI. Create voice-agent scenarios, refine them | 7 | Claude Code, Codex, OpenCode | 2 | 2,486 tok |
| ChainBench/OpenChainBench openchainbench.com Open, reproducible benchmarks for crypto infrastructure: aggregators, bridges, blockcha | 7 | Claude Code, Codex, OpenCode | 3 | 472 tok |
| EYamanS/chisel An MCP server that lets AI agents build, edit, render, and export real 3D models from prim | 7 | Claude Code, Codex, OpenCode | 2 | 404 tok |
| ToolingTools/SimView simview.dev MCP App that streams a live iOS Simulator / Android device into Codex, Cursor, and Claude | 7 | Codex, OpenCode | 1 | 1,285 tok |
| roian6/apple-health-ai-bridge healthbridge.chanhyo.dev Bring Apple Health to any AI agent—privately. Open-source iPhone app on the App Store, aut | 7 | Codex, OpenCode | 1 | 486 tok |
| Mr-AK-AI/agent-office Terminal-native delegation for local CLI agents. Launch and message real agents in isolate | 7 | Claude Code, Codex, OpenCode | 2 | 57 tok |
| Dankosik/go-service-template-rest Go REST API template and Golang microservice boilerplate, AI-native for coding agents, wit | 7 | Claude Code, Codex, OpenCode | 3 | 1,557 tok |
| EveryInc/garbage-man Provider-neutral email review and future-mail cleanup for AI agents | 7 | Claude Code, Codex, OpenCode | 2 | 203 tok |
| Annihilater/token-stats token-stats.com CLI for tracking AI coding token usage & costs across Claude Code, Codex, Cursor, Gemini, | 7 | Codex, OpenCode | 1 | 3,374 tok |