43,730 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 agents7,670Claude Code6,650Data and AI3,673Backend and APIs3,507Languages3,392Planning3,227Git and workflow3,211Code review2,744Testing2,385Memory and context2,367Writing and docs2,330DevOps and cloud2,314Research2,288Frontend2,261Security2,032Productivity1,722
All Claude Code31,994 Codex23,359 OpenCode22,302 GitHub Copilot3,560 Gemini CLI1,917 Cursor1,740 Windsurf142 Kiro82
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| Bollard-db/Bollard bollard-beta.vercel.app Safe, stateful database access layer for AI editors and MCP clients (Cursor, VS Code, Clau | 2 | Claude Code, Codex, OpenCode | 2 | 391 tok |
| borysttk/auth-vault-template 🧩 Template auth-vault — MCP credential management server, clean version to fork and adapt | 2 | Codex, OpenCode | 1 | 3,420 tok |
| gianjohn88/XP-MCP | 2 | Cursor | 1 | 2,749 tok |
| wishsoul/sf-symbol-mcp | 2 | Codex, OpenCode | 1 | 160 tok |
| nhattuan1305/adt-mcp | 2 | Claude Code | 1 | — |
| kkaminsk/NotebookLM-MCP Building another MCP. | 2 | Claude Code, Codex, OpenCode | 5 | 286 tok |
| IGVF-DACC/igvf-portal-mcp IGVF Data Portal MCP server and Agent Skills | 2 | Claude Code | 1 | — |
| rubenzarroca/pacioli Pacioli — MCP Server read-only para Holded + Skill PGC Español. En honor a Luca Pacioli (1 | 2 | Claude Code | 1 | 866 tok |
| SkyflowFoundry/skyflow-runtime-mcp sky-mcp-streamable.vercel.app Remote MCP server for PII removal. | 2 | Claude Code | 3 | 4,335 tok |
| N283T/chimerax-mcp-plus | 2 | Codex, OpenCode | 1 | 302 tok |
| qrak/telegram-commandcode commandcode.ai MCP server for Telegram integration with Command Code — send messages, files, and photos f | 2 | Codex, OpenCode | 1 | 1,850 tok |
| charettep/scrcpy-mcp MCP server exposing scrcpy and ADB Android device control as 22 tools for Claude Code and | 2 | Claude Code | 1 | 527 tok |
| fnsmdehip/soundgrep multi-agent AI music production orchestrator. semantic sample search, voice-to-MIDI, Ablet | 2 | Claude Code | 1 | 683 tok |
| rohanvinaik/ModelAtlas Google for open-source AI models — search by what you mean, not by keywords | 2 | Claude Code, Codex, OpenCode | 8 | 2,282 tok |
| cuber-it/mcp_shell_tools | 2 | Claude Code | 1 | 1,152 tok |
| AdamFerguson06/gmail-mcp Read-only Gmail investigation tool with MCP server support. Secure OAuth-based email acces | 2 | Claude Code | 1 | 821 tok |
| mnooseman/mcsrc-mcp | 2 | Claude Code, GitHub Copilot | 2 | 1,760 tok |
| hardyjosh/raindex-mcp | 2 | Codex, OpenCode | 1 | 625 tok |
| tansuasici/CountryStateCity countrystatecity.tansuasici.com Complete world location data - 250+ countries, 5K+ states, 150K+ cities - as an NPM packag | 2 | Claude Code | 1 | 2,310 tok |
| JulianKimmig/agile_mcp | 2 | Gemini CLI | 1 | 22 tok |
| nakurian/hce Middleware memory engine for LLMs — replaces linear chat history with three parallel struc | 2 | Claude Code | 1 | 1,411 tok |
| kleer001/blender-mcp MCP server for Blender: drive the app from Claude and other LLMs. 175 tools across 25 doma | 2 | Claude Code | 1 | 389 tok |
| sinmb79/KCSC-MCP KCSC-MCP — uses documents on construction standards (such as specifications) provided by t | 2 | Codex, OpenCode | 1 | 1,422 tok |
| nonatofabio/local-graphrag-mcp | 2 | Claude Code | 1 | 1,328 tok |
| jaewonjung6446/unity-mcp | 2 | Claude Code | 1 | — |
| Cloud-Temple/mcp-tools Serveur MCP — Bibliothèque centrale d'outils exécutables pour agents IA Cloud Temple | 2 | Claude Code, Codex, OpenCode | 2 | 279 tok |
| quanticsoul4772/macos-shell AI-Optimized MCP server for macOS shell with command caching, deduplication, and error rec | 2 | Claude Code | 1 | 1,877 tok |
| cnzhihao/synapse-mcp cnzhihao.github.io | 2 | Claude Code | 2 | 4,401 tok |
| ahelme/mcp-claude-code-browser-tools An browser-tools mcp server for claude code | 2 | Claude Code | 39 | 3,612 tok |
| samsolomon/relay-inspect Stop copying and pasting console logs, server errors and screenshots into your CLI. | 2 | Claude Code | 1 | 1,042 tok |
| kormco/mcp-www Lightweight MCP server for service discovery. No registry needed. | 2 | Claude Code | 1 | 713 tok |
| glibalien/obsidian-tools Local MCP tools for using an LLM to work with a vault of markdown notes | 2 | Claude Code | 1 | 4,763 tok |
| iagomussel/mcp-local-llm MCP server that provides access to local LLMs via Docker Model Runner with multiple AI-pow | 2 | Cursor | 1 | 1,889 tok |
| atlas-outreach-data-tools/atlasopenmagic-mcp MCP server for atom queries | 2 | Claude Code | 1 | 868 tok |
| shawnrushefsky/talky-talky MCP server for Audio Generation and Analysis with a Variety of Open Models. | 2 | Claude Code | 2 | 1,446 tok |
| bobmatnyc/mcp-browser MCP server for browser automation with Chrome extension. 5 MCP tools for DOM interaction, | 2 | Claude Code | 19 | 6,134 tok |
| nullnumber1/Telegram-Community-MCP MCP which can search through private/public chats which user participates in | 2 | Claude Code | 1 | 518 tok |
| scott-pallas/firewalla-mcp | 2 | Claude Code | 1 | 1,232 tok |
| hrco/xbridge-mcp MCP server bridging Claude Code to xAI Grok API. 19 tools: chat, web/X search, sessions, c | 2 | Claude Code | 1 | 2,107 tok |
| francojc/mcp-research MCP to connect to various bibliography sources and interface with a Zotero library | 2 | Claude Code | 1 | 862 tok |
| websitebutlers/cleanroom-mcp A Cleanroom MCP Server for AI Agents. | 2 | Claude Code | 1 | 904 tok |
| dave-palt/mcp-dynamics-365 | 2 | GitHub Copilot | 1 | 2,528 tok |
| osloer-industries/homeexchange-mcp Unofficial local MCP server for HomeExchange — search homes, manage conversations, and mor | 2 | Codex, OpenCode | 1 | 306 tok |
| drvcvt/radare2-mcp MCP server exposing radare2/Rizin binary analysis (85 tools) | 2 | Claude Code | 1 | 9,694 tok |
| iota-uz/repl-mcp Stateful Python REPL MCP Server - Execute Python code persistently with MCP tool integrati | 2 | Claude Code | 1 | 2,297 tok |
| flyinglimao/mcp-server-memos npmjs.com MCP server for Memos - a privacy-focused note-taking application | 2 | Codex, OpenCode | 1 | 1,274 tok |
| craigles75/au-weather-mcp AU Weather MCP Server (Data from BOM) | 2 | Claude Code | 1 | 683 tok |
| elephant-xyz/elephant-mcp elephant-mcp-two.vercel.app | 2 | Codex, Cursor, OpenCode | 2 | 1,807 tok |
| getlien/lien lien.dev Local-first semantic code search for AI coding assistants. Indexes your codebase with loca | 2 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 7,645 tok |
| Wenri/siyuan-mcp OAuth authentication proxy for MCP servers using Cloudflare Access | 2 | Codex, OpenCode | 1 | 6,918 tok |