43,695 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 agents7,622Claude Code6,647Data and AI3,678Backend and APIs3,504Languages3,404Planning3,218Git and workflow3,203Code review2,744Testing2,378Memory and context2,367Writing and docs2,318DevOps and cloud2,312Research2,291Frontend2,259Security2,027Productivity1,717
All Claude Code32,008 Codex23,279 OpenCode22,224 GitHub Copilot3,555 Gemini CLI1,920 Cursor1,736 Windsurf139 Kiro81
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| ggoodman/mcp-server-go Golang implementation of the streaming MCP HTTP transport with sessions, auth and horizont | 3 | Codex, OpenCode | 1 | 701 tok |
| dbsanfte/topdesk-mcp An MCP server for the TopDesk ticketing system | 3 | GitHub Copilot | 1 | 113 tok |
| delexw/mcpware Orchestration MCP Server - Routes tool calls to MCP backends | 3 | Claude Code | 1 | 1,106 tok |
| fluxinc/dicom-mcp-server A server for managing contextual data in DICOM tools, supporting medical imaging and machi | 3 | Cursor | 1 | 97 tok |
| medelman17/case-chronology-mcp A Model Context Protocol (MCP) server for building and managing chronological timelines of | 3 | Claude Code | 1 | 558 tok |
| syedasad-kiwi/mongodb-mcp-bridge A powerful Model Context Protocol (MCP) server implementation for MongoDB integration | 3 | GitHub Copilot | 1 | 188 tok |
| akshaykanni22/medbill-scanner A free, open-source medical bill anomaly detector with AI-powered RAG pipeline and MCP ser | 3 | Claude Code | 3 | 4,107 tok |
| Shaumik-Ashraf/mcp-fhir-patient-index A master patient index with a FHIR API, MCP server, and web UI on Ruby on Rails 8. | 3 | Claude Code, Codex | 2 | 1,105 tok |
| aokihu/mcp-teamate MCP server for AI cooperation | 3 | Cursor | 1 | 208 tok |
| AgileLuminary/mcp-agile-luminary agileluminary.com An MCP server for connecting with Agile Luminary Project Management Application | 3 | Cursor | 1 | 63 tok |
| feed-mob/fm-mcp-servers feedmob.com FeedMob MCP Servers | 3 | Codex, OpenCode | 1 | 547 tok |
| Im-neko/mcp-wikijs | 3 | Claude Code | 1 | 1,506 tok |
| rrudol/cursor-rulebook 🎯 Curated collection of Cursor rules for modern development projects. Includes standards | 3 | Claude Code | 1 | 827 tok |
| zyadhajaji/meshy-mcp MCP server for AI-powered 3D model & environment generation via Meshy AI — text to 3D, ima | 3 | Claude Code | 1 | 1,113 tok |
| nirecom/agents Self-driving dev harness for Claude Code — hook-enforced workflow, two-AI-provider review | 3 | Claude Code | 1 | 945 tok |
| GregoriSoria/billforward-mcp A Model Context Protocol (MCP) server for integrating Billforward's billing API with LLMs. | 3 | Claude Code, Codex, OpenCode | 22 | 12 tok |
| jsnanigans/mcpm Model Context Protocol MCP manager | 3 | Claude Code | 1 | 598 tok |
| ColdBox/coldbox-cli coldbox.org 💻 The official ColdBox CLI | 3 | Claude Code, Codex, OpenCode | 24 | 3,351 tok |
| rjamestaylor/cursor-rules-converter Convert Cursor rules for use by multiple AI Coding Assistants with git-hook automation for | 3 | Claude Code, Codex, OpenCode | 2 | 394 tok |
| HasanJahidul/localhost-mcp MCP server: inspect, manage, kill local dev servers. Stop guessing what's on :3000. | 3 | Claude Code | 1 | 1,045 tok |
| langgexyz/cursor-rules | 3 | Cursor | 1 | 585 tok |
| ddebixx/frontend-template | 3 | Codex, OpenCode | 1 | 535 tok |
| barrosohub/frontend-stack-blueprint Canonical frontend stack blueprint for AI coding agents: TypeScript, React, Vite, Vitest, | 3 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 5 | 6,864 tok |
| SyntaxWay/agent-ready-repo | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 6 | 1,616 tok |
| gjfresno/IA-Cyborg-SDD IA y gestión de proyecto | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 822 tok |
| Qapla/qapla-api-skill AI agent knowledge pack for the Qapla' public REST API (v1.3) — shipments, raw orders, car | 3 | Codex, OpenCode | 1 | 748 tok |
| fellyph/ai-instructions AI instructions repository | 3 | Claude Code | 1 | 2,231 tok |
| kevglynn/ai-dev-playbook AI-native development methodology — rules, skills, and scripts for working with coding age | 3 | Claude Code, Codex, Cursor, OpenCode | 11 | 2,209 tok |
| lvjiujitsu/lvjiujitsu Sistema LV Jiu Jitsu | 3 | Claude Code, Codex, OpenCode | 11 | 13,695 tok |
| LeoKemp223/zserial-cli A command-line serial port tool for AI coding tools. It provides unified serial port enume | 3 | Claude Code, Codex, OpenCode | 2 | 486 tok |
| Aryanacoder/superragskills The #1 skill you need before building any production grade RAG | 3 | Claude Code, Codex, OpenCode | 2 | 280 tok |
| GlacierXiaowei/structured-learning-skill Structured Learning Skill - The first AI teaching skill with **dual-mode switching**. Conc | 3 | GitHub Copilot | 1 | 573 tok |
| ricardocaste/flutter-cursor-rules Flutter App Expert .cursorrules | 3 | Cursor | 1 | 589 tok |
| pcomans/caruso Caruso allows you to take plugins that contain skills, subagents or commands from Claude C | 3 | Claude Code, Codex, OpenCode | 4 | 2,823 tok |
| kristiyan-velkov/ai-security-rules Security rules and best practices for common applications, focused on real-world threats a | 3 | Claude Code, Cursor | 1 | — |
| SkyIsTheLimit/agentvision See what your AI coding agents see. | 3 | Claude Code | 1 | 1,013 tok |
| brendancol/xarray-spatial-skills Repository for AI-assistant skills related to xarray-spatial | 3 | Claude Code, Cursor | 30 | 602 tok |
| YixuanYang00/math-beamer-slides-skill A skill for creating, compiling, reviewing, and polishing rigorous mathematical Beamer/LaT | 3 | GitHub Copilot | 2 | 2,139 tok |
| berrydev-ai/blockdoc-python A simple, powerful standard for structured content that works beautifully with LLMs, human | 3 | Claude Code | 2 | 207 tok |
| dawsonlp/BaseMcpServer A minimal containerized base for MCP servers using the MCP Python SDK | 3 | Claude Code | 1 | — |
| onesimplecode/agent-engineering-standards This repo hands your AI coding agent a rulebook and your CI the checks that enforce it, ca | 3 | Codex, OpenCode | 1 | 7,802 tok |
| Lucabiz/agentscribe One source of truth for your AI agent instructions — generate and validate AGENTS.md, CLAU | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,819 tok |
| hly-AI/codingplan | 3 | Codex, Cursor, OpenCode | 7 | 777 tok |
| jim-schilling/splurge-ai-rules Splurge Cursor AI Rules | 3 | GitHub Copilot | 1 | 3,215 tok |
| houshuang/limbic Embedding, search, novelty detection, and clustering for knowledge-dense text corpora. Opt | 3 | Claude Code | 1 | 2,440 tok |
| tecton-ai/tecton-mcp This MCP (Model Context Protocol) server provides tools to interact with tecton. | 3 | Claude Code, Codex, OpenCode | 2 | 3,949 tok |
| shijiew/back-to-basics-skills | 3 | Claude Code, Codex, OpenCode | 2 | 100 tok |
| tecnomanu/agent-rules-kit-mcp MCP Server for Agent Rules Kit - Tools for agent rules management | 3 | GitHub Copilot | 1 | 3,784 tok |
| Bridge-UI/core Bridge UI is a component library for React and Vue with a shared foundation. | 3 | Codex, OpenCode | 1 | 359 tok |
| goldbuick/zed-software-system zed.cafe A zzt-inspired web based software framework | 3 | Cursor | 6 | — |