24,842 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 agents8,530Claude Code6,887Git and workflow3,618Data and AI3,582Backend and APIs3,558Languages3,485Planning3,325Code review2,903Testing2,691DevOps and cloud2,482Writing and docs2,481Memory and context2,373Research2,322Frontend2,310Security2,179Project management1,971
All Claude Code32,523 Codex24,842 OpenCode23,761 GitHub Copilot3,723 Gemini CLI2,038 Cursor1,771 Windsurf201 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| florianbuetow/arxiv-smart-mcp MCP server for searching and reading arXiv papers from AI assistants — self-rate-limited t | 1 | Codex, OpenCode | 1 | 653 tok |
| Pallas-Labs/apple-music-mcp | 1 | Claude Code, Codex, OpenCode | 5 | 1,109 tok |
| genai-tools/anygpt AnyGPT Tooling (CLI, MCP, SDK) | 1 | Codex, OpenCode | 1 | 354 tok |
| bitovi/freshbooks-mcp-server bitovi.slack.com | 1 | Claude Code, Codex | 1 | — |
| nerdalytics/mcp-git-sandbox-fix | 1 | Claude Code, Codex, OpenCode | 2 | 417 tok |
| JasonBates/whoop-mcp-server MCP server for WHOOP fitness tracker - access recovery, sleep, and strain data in Claude D | 1 | Claude Code, Codex, OpenCode | 2 | 361 tok |
| pahar0/mcp-server-splunk A Model Context Protocol server for Splunk - search, manage, and analyze Splunk data via L | 1 | Codex, OpenCode | 1 | 2,300 tok |
| nicholaspsmith/Glancey MCP plugin for semantic code search - gives AI coding agents deep context from your entire | 1 | Claude Code, Codex, OpenCode | 4 | 764 tok |
| IronAdamant/Trammel Rust planning and verification harness for AI coding agents: dependency-aware decompositio | 1 | Claude Code, Codex, OpenCode | 2 | 3,176 tok |
| nonsleepr/claude-chrome-mcp nonsleepr.github.io MCP server for browser automation via the Claude Chrome Extension (https://claude.com/chro | 1 | Codex, OpenCode | 1 | 2,000 tok |
| zeropsio/zcp | 1 | Claude Code, Codex, OpenCode | 14 | 2,935 tok |
| rlemaigre/docpack Bundles documents into a knowledge base queryable using CLI, TS or MCP. | 1 | Codex, OpenCode | 1 | 1,143 tok |
| hughmadden/MeuralMCP | 1 | Codex, OpenCode | 1 | 293 tok |
| zhangluka/grain-seo-mcp SEO analysis MCP server — Google Search Console, Bing Webmaster Tools, GA4 analytics with | 1 | Claude Code, Codex | 1 | — |
| 0xABADBABE-ops/browser-jet-pilot browser-jet-docs.awhisper.org Self-hosted MCP server for AI browser automation. Drop-in @browserbasehq/mcp alternative. | 1 | Codex, OpenCode | 1 | 1,238 tok |
| OzTamir/mcplexer A tiny MCP proxy for running multiple labeled instances of the same MCP | 1 | Claude Code, Codex, OpenCode | 2 | 732 tok |
| jjjjjjjjnnjnn/relayos-mcp Claude Code as an AI team command center — The Multi-Agent Orchestrator MCP Server for Cla | 1 | Codex, OpenCode | 1 | 511 tok |
| zhyx12/projtool Python package + Claude Code MCP server for running ML experiments across a local dev mach | 1 | Claude Code, Codex, OpenCode | 2 | 5,991 tok |
| Joncallim/pdf-inline-image-rag-mcp MCP server for searchable PDF text databases with inline image extraction and exact image | 1 | Codex, OpenCode | 1 | 551 tok |
| takuyaw-w/a5sql-mcp | 1 | Claude Code, Codex, OpenCode | 4 | 5,003 tok |
| md-riaz/google-seo-mcp md-riaz.github.io | 1 | Claude Code, Codex, OpenCode | 3 | 934 tok |
| aancw/sanban Simple kanban that just works. No bloat, no login, no SaaS. JSON-backed boards with a REST | 1 | Codex, OpenCode | 1 | 1,583 tok |
| sorryorc/mythos-mcp npmjs.com Deterministic verification gate for Codex / Claude Code. 19 tools, zero LLM and zero netwo | 1 | Codex, OpenCode | 1 | 189 tok |
| The-Syntax-Slayer/browser-mcp Browser automation + bookmark management over FastMCP 3.2. Playwright-powered: Chrome, Fir | 1 | Claude Code, Codex, OpenCode | 2 | 402 tok |
| sugukurukabe/ssw-workforce-intel-mcp MCP server for Specified Skilled Worker (SSW) workforce intelligence in Japan, powered by | 1 | Codex, OpenCode | 1 | 474 tok |
| romaco-labs/romaco-mcp | 1 | Codex, OpenCode | 1 | 679 tok |
| RoxyAPI/claude-plugin roxyapi.com Astrology API plugin for Claude Code. The Spiritual OS layer as Remote MCP: Western, Vedic | 1 | Claude Code, Codex, OpenCode | 1 | 457 tok |
| Marcelle-Labs/never-ask-twice Enterprise Support MemoryAgent on Qwen Cloud that remembers customer context across sessio | 1 | Claude Code, Codex | 1 | — |
| CorvidLabs/agent-3md corvidlabs.xyz 🗃️ Your whole agent in one file. A 3md document where plane 0 is the agent and every othe | 1 | Claude Code, Codex, Cursor, OpenCode | 7 | 499 tok |
| bblrlo/pdns-mcp-server PowerDNS MCP server | 1 | Codex, OpenCode | 1 | 898 tok |
| datarian/mcp-coco A context engine implemented through cocoindex with a minimal MCP server in front. | 1 | Claude Code, Codex, OpenCode | 6 | 169 tok |
| Xingwen37/instrument_mcp | 1 | Codex, OpenCode | 1 | 2,827 tok |
| yxb123456cy/mcp-server-dev-test mcp-server-dev-test.vercel.app An attempt to develop an MCP Server based on @modelcontextprotocol/sdk and deploy it to pl | 1 | Codex, OpenCode | 1 | 417 tok |
| Xayan/ast-outline-mcp MCP server for ast-outline — a tree-sitter-based CLI that lets AI coding agents pull exact | 1 | Codex, OpenCode | 1 | 679 tok |
| mauro3422/bridgeWEB-MCP | 1 | Codex, OpenCode | 1 | 4,188 tok |
| whmathews15/notebooklm-mcp-cli | 1 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 7,036 tok |
| Terry-Wang-Lynx/cc-in-codex Local MCP server that lets Codex use Claude Code as a persistent SDK/TUI companion. | 1 | Claude Code, Codex, OpenCode | 2 | 313 tok |
| wolverin0/wezbridge Zero-dependency MCP server to orchestrate a swarm of Claude Code / Codex sessions across W | 1 | Claude Code, Codex, OpenCode | 2 | 3,882 tok |
| kennyberg/socialmemory-mcp Local MCP connector for socialmemory X likes and bookmarks. | 1 | Codex, OpenCode | 1 | 135 tok |
| Mr-M-tastic/Power-Automate-MCP Free, open MCP server to edit Power Automate cloud flows live from GitHub Copilot, Codex, | 1 | Claude Code, Codex, OpenCode | 2 | 979 tok |
| skulidropek/figma-tunnel Figma <-> MCP bridge over WebSocket + Cloudflare tunnel: control/export Figma from any MCP | 1 | Codex, OpenCode | 1 | 372 tok |
| ecestnrkl/figjam-mcp MCP server that turns a FigJam board into queryable LLM context — read via the Figma API, | 1 | Codex, OpenCode | 1 | 588 tok |
| Vladev0/agentboard Local kanban task board for humans and AI coding agents, backed by a markdown vault | 1 | Codex, OpenCode | 1 | 4,236 tok |
| yukincom/rakuten-pantry-mcp A modified version of mrslbt/rakuten-mcp for Ichiba only. Calculates unit prices from prod | 1 | Codex, OpenCode | 1 | 302 tok |
| enihcam/opencode-webmcp MCP server bridge — exposes Chromium WebMCP tools (document.modelContext) as MCP tools. Wo | 1 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,935 tok |
| LooseWireDev/mealforge AI-planned weekly meals, self-hosted. Plan in chat with any MCP-capable agent — get recipe | 1 | Claude Code, Codex, OpenCode | 6 | 1,406 tok |
| dw18031988/ds_mcp_server ds-mcp-server-theta.vercel.app | 1 | Codex, OpenCode | 1 | 298 tok |
| RZFL/agentops-mcp Local-first MCP safety agent for AI coding workflows with checkpoints and rollback. | 1 | Codex, OpenCode | 1 | 271 tok |
| bamboovfx/houdini-mcp-codex Rock Codex Houdini MCP setup and Windows installer | 1 | Codex, OpenCode | 1 | 1,704 tok |
| khou/showrunner Realtime director/member coordination for coding-agent sessions (Claude Code + Cursor, loc | 1 | Codex, OpenCode | 1 | 305 tok |