43,636 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 agents7,571Claude Code6,627Data and AI3,684Backend and APIs3,492Languages3,401Planning3,221Git and workflow3,179Code review2,740Testing2,368Memory and context2,365Writing and docs2,309DevOps and cloud2,308Research2,298Frontend2,256Security2,015Productivity1,715
All Claude Code31,984 Codex23,196 OpenCode22,145 GitHub Copilot3,551 Gemini CLI1,917 Cursor1,736 Windsurf133 Kiro79
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| daveepope/arena A cross platform sandboxing framework with built in profiling workflows. | 13 | Claude Code, Codex, OpenCode | 2 | 8,712 tok |
| transparentlyok/mcp-context-manager in short: gives claude a search engine for your project | 13 | Claude Code | 1 | 933 tok |
| vin-spiegel/htmldrop htmldrop.link Publish HTML for agents — one API call, MCP server included | 13 | Claude Code, Codex, OpenCode | 2 | 1,597 tok |
| damoqiongqiu/mcp-local-rag Local-first RAG server for developers. Semantic + keyword search for code and technical do | 13 | Codex, OpenCode | 1 | 2,613 tok |
| ethancod1ng/bybit-mcp-server npmjs.com A Model Context Protocol (MCP) server for integrating AI assistants with Bybit cryptocurre | 13 | Claude Code | 1 | 497 tok |
| austenstone/myinstants-mcp myinstants.com MCP server that lets your ai agent press sound buttons. it's not that deep. | 13 | GitHub Copilot | 1 | 1,027 tok |
| ChuckBryan/ynabmcpserver | 13 | GitHub Copilot | 1 | 291 tok |
| nmeierpolys/mcp-structured-memory Structured Memory MCP Server | 13 | Claude Code | 1 | 160 tok |
| OleksandrKucherenko/mcp-obsidian-via-rest mcp-obsidian.artfulbits.se MCP Server connected to Obsidian Vault with Local REST API. (re-write it completely with B | 13 | Claude Code, Codex, OpenCode | 3 | 3,828 tok |
| deployhq/deployhq-mcp-server deployhq.com DeployHQ MCP Server | 13 | Claude Code | 1 | 1,487 tok |
| 0xNullAI/DG-MCP 0xnullai.com Archived — development has moved to 0xNullAI/0xNuller: https://github.com/0xNullAI/0xNulle | 13 | Claude Code | 2 | 2,260 tok |
| dkyazzentwatwa/substack_mcp Substack MCP that gives structured access to Substack publications with real-time content | 13 | Claude Code | 1 | 2,328 tok |
| dickiedyce/Obsidian-TS-MCP Deprecated -- superseded by https://github.com/dickiedyce/devjournal | 13 | GitHub Copilot | 1 | 481 tok |
| Smart-AI-Memory/empathy-framework smartaimemory.com Combining a five-level AI framework with git-native memory overcomes session amnesia, enab | 13 | Claude Code | 9 | — |
| Open-Agent-Tools/open-paper-trading-mcp Open Paper Trading MCP - A dual-interface paper trading simulation platform with FastAPI R | 13 | Claude Code | 1 | 6,749 tok |
| Bjern/jw-org-mcp A Model Context Protocol (MCP) server that provides controlled, verifiable access to conte | 13 | Claude Code | 1 | 1,125 tok |
| lie5860/openai-search-mcp | 13 | Claude Code, Codex, Cursor, OpenCode | 40 | 111 tok |
| yusong652/yade-mcp pypi.org MCP server connecting AI agents to YADE — run DEM simulations through natural conversation | 13 | Claude Code, Codex, OpenCode | 2 | 1,379 tok |
| cubedevinc/cube-mcp-server | 13 | Claude Code | 1 | 866 tok |
| CaullenOmdahl/youtube-music-mcp-server YouTube Music MCP Server - Search, curate, and manage YouTube Music playlists through Clau | 13 | Claude Code | 10 | 2,008 tok |
| christopherekfeldt/mcp-bitbucket-dc MCP server for Bitbucket Data Center — code search, file browsing, PRs, commits, and more | 13 | Claude Code, Codex, OpenCode | 5 | 572 tok |
| thaleslaray/hotmart-mcp Hotmart API MCP server — sales, subscriptions, club, products, coupons, tickets, negotiati | 13 | Claude Code | 1 | 949 tok |
| doitintl/doit-mcp-server doit.com DoiT official MCP Server | 13 | Codex, OpenCode | 1 | 1,956 tok |
| emergent-wisdom/sema Sema is a content-addressed vocabulary for AI agents. Precise thinking, reliable reference | 13 | Claude Code, Codex, OpenCode | 2 | 7,363 tok |
| loomle/loomle loomle.ai Agent-native Unreal Engine tooling through MCP | 13 | Codex, OpenCode | 1 | 877 tok |
| 4kk11/RhinoMCPServer | 13 | Claude Code | 1 | 2,311 tok |
| RedberryProducts/mcp-client-laravel Laravel-native client for Model Context Protocol (MCP) servers. Built by Redberry (Diamond | 13 | Claude Code, Codex, OpenCode | 2 | 2,069 tok |
| vexxvakan/mcp-docsrs | 13 | Codex, OpenCode | 2 | 430 tok |
| th3nolo/openrouter-mcp th3nolo.com Mcp compatible with claude code cli tool to use open router models | 13 | Claude Code | 1 | 392 tok |
| samefarrar/mcp-ankiconnect | 13 | Claude Code | 1 | 967 tok |
| amansk/librelink-mcp-server MCP server to connect with Freestyle Libre Link and bring CGM data into LLMs | 13 | Claude Code | 1 | 740 tok |
| narailabs/doc-wiki Documentation wiki generator + maintainer — Claude Code skill + agents + TypeScript helper | 13 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 8,196 tok |
| dzmitrys-dev/supamem pypi.org Project-agnostic dual-memory MCP CLI for Claude Code, Cursor, and OpenCode (Qdrant tuned h | 13 | Claude Code, Codex, OpenCode | 2 | 3,745 tok |
| astronomer/astro-airflow-mcp astronomer.io MCP server for Apache Airflow instances. Runs standalone or as an Airflow plugin. | 13 | Claude Code, Codex, OpenCode | 6 | 749 tok |
| AdrianRogowski/auto-sdd | 13 | Claude Code | 35 | 9,835 tok |
| AlexanderAbramovPav/scriba Free, local, accurate and honest meeting transcription SKILL with speaker diarization for | 13 | Codex, OpenCode | 1 | 2,733 tok |
| php-opcua/opcua-client php-opcua.com A PHP library that talks OPC UA binary protocol over TCP. It handles the full stack — tran | 13 | Claude Code, Codex, GitHub Copilot | 2 | 710 tok |
| EnventDigital/community-express-dev-mcp edgidesign.com A community-built MCP server that provides developer tools for building Adobe Express add- | 13 | GitHub Copilot | 1 | 44 tok |
| RandomSynergy17/Arcane-MCP-Server A comprehensive Model Context Protocol server that exposes the Arcane Docker Management AP | 13 | Claude Code | 1 | 1,135 tok |
| karrolcia/hippocampus Open-source MCP memory server. Universal AI memory across all platforms. | 13 | Claude Code | 14 | 14,590 tok |
| trycourier/courier-skills AI agent skill for building production-ready notifications across email, SMS, push, in-app | 13 | Codex, OpenCode | 1 | 442 tok |
| juanqui/pdfkb-mcp A PDF document RAG MCP that is easy to setup, supports completely local parsing and embedd | 13 | Claude Code | 1 | 1,101 tok |
| dylan-gluck/mcp-background-job Execute long-running commands in the background while continuing to work with Claude | 13 | Claude Code | 1 | 850 tok |
| memtomem/memtomem memtomem.com Markdown-first, long-term memory infrastructure for AI agents. Hybrid BM25 + semantic sear | 13 | Claude Code | 1 | 1,316 tok |
| ahmad2x4/mcp-server-seq | 13 | Claude Code | 1 | 267 tok |
| Mineru98/skills-store | 13 | Claude Code, Codex, OpenCode | 20 | 1,756 tok |
| daniel-carreon/MCP_servers | 13 | Cursor | 1 | 1,225 tok |
| geekjourneyx/sondar Turn AI ecosystem changes into evidence-backed, closed-loop decisions for AI builders — Go | 13 | Codex, OpenCode | 1 | 361 tok |
| remsky/comic-chat-web comics.remsky.art Modern port of Microsoft Comic Chat 1996 on Cloudflare Durable Objects || Create custom st | 13 | Claude Code, Codex, OpenCode | 2 | 1,296 tok |
| Neeeophytee/ai-watermarks-reality-check Test what AI watermark and provenance evidence exists, whether it verifies, and what survi | 13 | Codex, OpenCode | 1 | 652 tok |