23,799 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 agents8,544Claude Code6,892Git and workflow3,622Data and AI3,580Backend and APIs3,558Languages3,492Planning3,321Code review2,907Testing2,690DevOps and cloud2,489Writing and docs2,484Memory and context2,374Research2,321Frontend2,311Security2,178Project management1,971
All Claude Code32,539 Codex24,879 OpenCode23,799 GitHub Copilot3,723 Gemini CLI2,040 Cursor1,772 Windsurf202 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| 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 pvliesdonk.github.io Paperless-NGX over MCP: search, read, upload and tag documents; manage correspondents and | 1 | Claude Code, Codex, OpenCode | 16 | 4,053 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 |
| synchronicity-labs/mcp-server sync.so MCP server for the Sync API: give AI agents the ability to create lipsync videos, manage a | 1 | Claude Code, Codex, OpenCode | 2 | 1,988 tok |
| tsilva/mcp-wandb 🔬 Query Weights & Biases experiments through MCP 📊 | 1 | Claude Code, Codex, OpenCode | 2 | 402 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 | 673 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 | 2 | 128 tok |
| uchinx/mcp-atlassian | 1 | Codex, OpenCode | 1 | 712 tok |
| seungwonme/prompt-new-mcp | 1 | Codex, OpenCode | 1 | 351 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 code.j4k.dev Mirror of https://code.j4k.dev/j4k-oss/perplexity-agent-mcp | 1 | Claude Code, Codex, OpenCode | 2 | 9,769 tok |
| CaseyRo/mcp-readwise MCP server for Readwise and Reader: markdown to real EPUB in your Reader library, engageme | 1 | Claude Code, Codex, OpenCode | 22 | 821 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 | 3,975 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 |
| antonio-mello-ai/mcp-slack MCP server for slack | 1 | Codex, OpenCode | 1 | 573 tok |
| cvsloane/mainwp-mcp | 1 | Claude Code, Codex, OpenCode | 2 | 245 tok |
| aferreiraguido/python-mcp-server MCP Server For Deterministic PYTHON Analysis | 1 | Codex, OpenCode | 1 | 820 tok |
| mrorigo/simple-memory-mcp Personal memory MCP server backed by SQLite FTS5 BM25 search with temporal reranking. | 1 | Codex, OpenCode | 1 | 808 tok |
| alDuncanson/gcal-mcp pypi.org Google Calendar MCP server | 1 | Codex, OpenCode | 1 | 265 tok |
| quartz-labs-dev/pabal-resource-mcp npmjs.com MCP server for bidirectional conversion between ASO and web SEO data. | 1 | Codex, OpenCode | 1 | 655 tok |