22,198 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 agents7,609Claude Code6,644Data and AI3,677Backend and APIs3,502Languages3,403Planning3,220Git and workflow3,193Code review2,743Testing2,377Memory and context2,363DevOps and cloud2,314Writing and docs2,311Research2,293Frontend2,259Security2,022Productivity1,721
All Claude Code32,006 Codex23,251 OpenCode22,198 GitHub Copilot3,552 Gemini CLI1,917 Cursor1,737 Windsurf138 Kiro81
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| ZapSign/api-mcp MCP node server for API | 1 | Claude Code, Codex, Cursor, OpenCode | 4 | 2,624 tok |
| crnisamuraj/G0DM0D3-mcp | 1 | Codex, OpenCode | 1 | 3,451 tok |
| 13624725933/agent-rulescope 13624725933.github.io See exactly which instructions your coding agent inherits. Scan AGENTS.md, CLAUDE.md, Curs | 1 | Codex, OpenCode | 1 | 83 tok |
| Tawe/AI-CLI-Memory-Sync-Repo Maintain one canonical AI instructions file (INSTRUCTIONS.md) and sync it to tool-specific | 1 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,196 tok |
| hsr88/scavi scavi.cc Context linter for AI coding agents. Detects stale, conflicting, and incorrect instruction | 1 | Codex, OpenCode | 1 | 1,830 tok |
| blitznihar/task-tracker-copilot-md Sample application best practices for using instruction files, prompt files and agent md f | 1 | Codex, GitHub Copilot, OpenCode | 6 | 3,151 tok |
| Sanmu-27/repo2agent npmjs.com ESLint for AI coding agents: generate AGENTS.md, CLAUDE.md, Cursor rules, Copilot instruct | 1 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 930 tok |
| Uky0Yang/agent-rules-lint pypi.org Lint AGENTS.md, CLAUDE.md, Cursor rules, and Copilot instructions for safer AI coding agen | 1 | Codex, OpenCode | 1 | 165 tok |
| zzz030981-max/agent-context-lens DevTools for AI coding instructions: trace effective context across Codex, Claude Code, Cu | 1 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 198 tok |
| hydershah/nextjs-ai-template AI-optimized web dev template with auto-routing Claude Code sub-agents, GitHub Copilot & O | 1 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 1,049 tok |
| qduc/code-rag An MCP server that add semantic code search to your coding agent | 1 | Claude Code, Codex, OpenCode | 2 | 1,354 tok |
| pvliesdonk/paperless-mcp FastMCP server wrapping the Paperless-NGX REST API | 1 | Claude Code, Codex, OpenCode | 13 | 5,663 tok |
| marmar9615-cloud/agentbridge-protocol An AI-native action layer that helps apps expose structured, permissioned actions for agen | 1 | Claude Code, Codex, OpenCode | 2 | 4,865 tok |
| Mihai-Codes/tldraw-mcp-server The most comprehensive MCP server for tldraw — programmatic canvas toolkit for AI agents | 1 | Codex, OpenCode | 1 | 3,719 tok |
| tsilva/mcp-wandb 🔬 Query your Weights & Biases experiments directly from LLM agents via Model Context Prot | 1 | Claude Code, Codex, OpenCode | 2 | 401 tok |
| HydroChlorix/googledrive-mcp-server | 1 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,251 tok |
| KenLSM/node-huckleberry-mcp Huckleberry MCP server for Claude, Cursor, and other AI assistants. Query and log baby sle | 1 | Claude Code, Codex, OpenCode | 2 | 2,662 tok |
| OpenCodeEngineer/chrome-devtools-mcp npmjs.org Chrome DevTools for coding agents | 1 | Codex, OpenCode | 1 | 206 tok |
| QuickerHub/everything-mcp MCP server for fast cross-project file search via voidtools Everything (Windows) | 1 | Codex, OpenCode | 1 | 196 tok |
| jleechanorg/mcp_agent_mail_archived Like gmail for your coding agents. Lets various different agents communicate and coordinat | 1 | Claude Code, Codex, OpenCode | 6 | 4,139 tok |
| Byte-Naut/npu-vision-fallback Archived experiment: local OCR and OpenVINO NPU UI detection over MCP | 1 | Claude Code, Codex, OpenCode | 2 | 3,563 tok |
| gitbosung/open-ALIO-mcp MCP server for Korean public institution information from ALIO and ALIO Plus. | 1 | Claude Code, Codex, OpenCode | 2 | 1,292 tok |
| Volpestyle/swarm-mcp Host-neutral MCP server for cross-agent discovery, coordination, file locking, and task ha | 1 | Claude Code, Codex, OpenCode | 4 | 128 tok |
| JKasteele/ai-act-companion huggingface.co Local-first, explainable EU AI Act risk classifier with risk-assessment/DPIA/bias/AI-secur | 1 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 546 tok |
| uchinx/mcp-atlassian | 1 | Codex, OpenCode | 1 | 712 tok |
| snowhypers/LoanRiskLens_MCP | 1 | Claude Code, Codex, OpenCode | 2 | 556 tok |
| co-native-ab/graphdo-ts A TypeScript MCP server that gives AI agents scoped, low-risk access to Microsoft Graph. | 1 | Claude Code, Codex, OpenCode | 17 | 4,416 tok |
| seabearDEV/Reverie seabear.dev A command-line information store for quick reference of frequently used data, with dot not | 1 | Claude Code, Codex, OpenCode | 2 | 919 tok |
| CariotInc/cariot-mcp-server | 1 | Codex, OpenCode | 1 | 106 tok |
| ymyzk/nagoya-bus-mcp MCP server for Nagoya City Bus | 1 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,493 tok |
| Jercik/perplexity-agent-mcp An opinionated, coding-specialized, Model Context Protocol server that integrates Perplexi | 1 | Claude Code, Codex, OpenCode | 2 | 7,929 tok |
| CaseyRo/mcp-readwise MCP server for Readwise + Readwise Reader. Engagement-aware reads, write tools, and a mark | 1 | Claude Code, Codex, OpenCode | 21 | 431 tok |
| philipithomas/ghost-mcp mcp.contraption.co An experimental MCP server for Contraption Company essays | 1 | Codex, OpenCode | 1 | 619 tok |
| Knuckles-Team/archivebox-api ArchiveBox API and MCP Server | 1 | Claude Code, Codex, OpenCode | 2 | 3,524 tok |
| waTeim/cnpg-mcp An MCP Server for the Cloud Native PG Controller | 1 | Codex, OpenCode | 1 | 879 tok |
| protosskai/chatgpt-context-mcp | 1 | Codex, OpenCode | 1 | 754 tok |
| berthojoris/katcoder-mysql-mcp | 1 | Codex, OpenCode | 1 | 90 tok |
| PrinceGupta1999/graylog-mcp Unofficial Graylog MCP | 1 | Claude Code, Codex, Cursor, OpenCode | 3 | 1,109 tok |
| bleugreen/kicad-mcp | 1 | Codex, OpenCode | 1 | 641 tok |
| iPraBhu/mcp-perforce-server npmjs.com Enterprise-grade MCP server enabling AI assistants (Claude, Cursor, Copilot, ChatGPT) to s | 1 | Codex, OpenCode | 1 | 5,893 tok |
| aakashH242/mcp-playwright aakashh242.github.io Playwright Model Context Protocol Server - Tool to automate Browsers and APIs in Claude De | 1 | Codex, OpenCode | 1 | 658 tok |
| nxxxsooo/mcp-server-wechat-mp MCP Server for WeChat Official Account (微信公众号) | 1 | Codex, OpenCode | 1 | 717 tok |
| a-wiseguy/invoiceninja-mcp if the invoice i sent is too high, blame claude. | 1 | Codex, OpenCode | 1 | 1,402 tok |
| eficode/mcp-agileday MCP server for agileday | 1 | Codex, OpenCode | 1 | 1,028 tok |
| sandraschi/observability-mcp FastMCP 3.2 observability server for monitoring MCP ecosystems with OTel and Grafana | 1 | Claude Code, Codex, Cursor, OpenCode | 4 | 516 tok |
| waynebaby/MCPTokenBridge | 1 | Codex, GitHub Copilot, OpenCode | 2 | 1,318 tok |
| jscraik/mKit MCP Server Boilerplate for Cloudflare Workers | 1 | Claude Code, Codex, OpenCode | 2 | 633 tok |
| adrianmikula/JakartaMigrationMCP | 1 | Codex, Cursor, OpenCode | 4 | 4,267 tok |
| creative-koalas/kmux Block-oriented terminal MCP server, tailored for AI/LLMs | 1 | Codex, OpenCode | 1 | 47 tok |
| jorben/mcp-server A unified MCP (Model Context Protocol) server with pluggable tools. | 1 | Codex, OpenCode | 1 | 1,085 tok |