24,815 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 agents8,505Claude Code6,886Git and workflow3,611Data and AI3,580Backend and APIs3,556Languages3,487Planning3,327Code review2,899Testing2,686Writing and docs2,480DevOps and cloud2,479Memory and context2,375Research2,323Frontend2,308Security2,172Project management1,965
All Claude Code32,517 Codex24,815 OpenCode23,733 GitHub Copilot3,719 Gemini CLI2,034 Cursor1,770 Windsurf202 Kiro114
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| sphinx-contrib/mcp sphinx-contrib.github.io Sphinx extension for documenting MCP tools, prompts, resources and resource templates. | 8 | Claude Code, Codex, OpenCode | 2 | 755 tok |
| V-Songbird/razor YAGNI checks for Claude Code and Codex: reconsider dependencies, file growth and unnecessa | 8 | Claude Code, Codex, OpenCode | 2 | 1,232 tok |
| ABMJ/tenable-sc-mcp-server Production-ready MCP server for Tenable Security Center with intelligent caching. 90% toke | 8 | Codex, OpenCode | 1 | 1,269 tok |
| trentisiete/endy npmjs.com Multi-agent control plane for coding CLIs (Codex, OpenCode, CommandCode, Hermes) with one | 8 | Codex, OpenCode | 1 | 3,029 tok |
| luckeyfaraday/frontier-orchestrator Multi-agent orchestration for Claude Code: MCP server + skill that keeps Claude as lead en | 8 | Claude Code, Codex | 1 | — |
| vibestackdev/vibe-stack vibestack0.gumroad.com 29 .mdc architecture rules that prevent AI coding assistants from hallucinating insecure a | 8 | Claude Code, Codex, OpenCode | 2 | 2,642 tok |
| hslee16/Archy Architectural sensor for Python codebases - keeps structure honest under AI-assisted devel | 8 | Claude Code, Codex, OpenCode | 2 | 3,992 tok |
| kazakago/cc-mascot kazakago.github.io A desktop mascot that speaks responses from AI coding agents. | 8 | Codex, OpenCode | 1 | 1,341 tok |
| ojamin/okf-loom Toolkit for turning Markdown docs bundles into validated OKF knowledge graphs, with a loca | 8 | Claude Code, Codex, OpenCode | 2 | 877 tok |
| Supersynergy/agent-token-saver Cuts what your coding assistant spends per task, and shows you the numbers. Works with Cod | 8 | Claude Code, Codex, OpenCode | 2 | 474 tok |
| ehurrn/newsroom-extension AI investigative journalism toolkit — OSINT, FOIA engineering, corporate veil piercing, li | 8 | Codex, Gemini CLI, OpenCode | 2 | 2,571 tok |
| tb0hdan/wass-mcp Web Application Security Scanner MCP Server | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 191 tok |
| snyk/saw-mcp | 8 | Claude Code, Codex, OpenCode | 2 | 1,968 tok |
| yashau/dexgram Lightweight Telegram bridge for Codex on Windows | 8 | Claude Code, Codex, OpenCode | 2 | 1,834 tok |
| Trenza1ore/GitCode-API gitcode-api.readthedocs.io Easy-to-use Python SDK for the GitCode REST API. Providing a built-in CLI tool and optiona | 8 | Claude Code, Codex, OpenCode | 2 | 3,160 tok |
| art9mid/arc-skill AI agent skill for scaffolding production-ready React Native (Expo) projects. Architecture | 8 | Claude Code, Codex, Cursor, OpenCode | 4 | 2,221 tok |
| tsnAnh/flutter-agentic-starter The production-ready Flutter starter built for Claude Code, Cursor, Codex, and modern AI c | 8 | Claude Code, Codex, OpenCode | 2 | 3,715 tok |
| Bundl-AI/bundl-cli bundl.ai Bundl - The open corpus standard for AI employees. Define how your company works once. Eve | 8 | Claude Code, Codex, OpenCode | 2 | 306 tok |
| alficlaw01/claw3d claw3d-office-alfi1.vercel.app 3D AI agent office — forked from iamlukethedev/Claw3D | 8 | Codex, OpenCode | 1 | 129 tok |
| classicchins/compounding-marketing cmo-skills.com A Claude Code + ChatGPT/Codex plugin for world-class Marketing & GTM workflows | 8 | Claude Code, Codex, OpenCode | 2 | 8,473 tok |
| DropFan/claude-code-plugins Claude Code plugins collection - custom plugins and curated favorites. chat-saver/skill-ex | 8 | Claude Code, Codex, OpenCode | 2 | 1,569 tok |
| sfc-gh-myoung/ai_coding_rules One universal AI coding rule set for all AI assistants, IDEs, and agents — portable, intel | 8 | Codex, OpenCode | 1 | 711 tok |
| sylphiette269/premiere-mcp-editor-cn A Premiere Pro MCP editing assistant for Claude Code, Codex, and OpenClaw, supporting roug | 8 | Codex | 16 | — |
| markpasternak/canvas-drop canvas-drop.com Turn web artifacts into tools your team can use. Publish from files or an AI agent, contro | 8 | Claude Code, Codex, OpenCode | 2 | 4,677 tok |
| 777genius/infinity-context Reliable memory and context infrastructure for AI coding agents: source-backed facts, revi | 8 | Codex, OpenCode | 1 | 284 tok |
| eduair94/cambio-uruguay cambio-uruguay.com cambio-uruguay.com: Uruguay exchange rates, rentals, used cars and prices. Public API, rem | 8 | Claude Code, Codex, OpenCode | 2 | 31,086 tok |
| slayerlabs/slay-paper Slayer's universal paper formatka & workflow — dialectic reasoning (thesis↔antithesis→synt | 8 | Claude Code, Codex, OpenCode | 2 | 3,807 tok |
| mreider/agilemarkdown agilemarkdown.com Run your backlogs in markdown | 8 | Claude Code, Codex, GitHub Copilot, OpenCode | 11 | 3,597 tok |
| actual-software/actual-cli cli.actual.ai Architecture questions, answered from your ADRs. | 8 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,269 tok |
| lookatitude/guild Self-evolving Claude Code plugin for specialist agent guilds, structured planning, persist | 8 | Claude Code, Codex, OpenCode | 2 | 8,662 tok |
| cwensel/arcaneum CLI tools and Claude Code plugins for semantic and full-text search across code, docs, and | 8 | Claude Code, Codex, OpenCode | 2 | 1,885 tok |
| P4ST4S/mcp-audit A transparent Go proxy that intercepts, signs, and audits all MCP tool calls between any c | 8 | Claude Code, Codex, OpenCode | 5 | 2,890 tok |
| burgebj/claude_everything | 8 | Claude Code, Codex, Kiro | 58 | — |
| bharath03-a/GitCortex bharath03-a.github.io Branch-aware code knowledge graph for Git repos — indexes your codebase on every commit vi | 8 | Claude Code, Codex, OpenCode | 25 | 764 tok |
| josix/agent-flow josix.github.io A Claude Code plugin that transforms Claude into a multi-agent orchestrated system with sp | 8 | Claude Code, Codex, OpenCode | 1 | 681 tok |
| peterblazejewicz/claude-plugins .NET C# cross-platform Claude Code plugins | 8 | Claude Code, Codex, OpenCode | 2 | 3,389 tok |
| pamelafox/azure-cosmosdb-identity-aware-mcp-server pamelafox.github.io A code sample and presentation about building an identity-aware MCP server with FastMCP, A | 8 | Codex, OpenCode | 1 | 690 tok |
| CiscoDevNet/CiscoFMC-MCP-server-community | 8 | Codex, OpenCode | 1 | 303 tok |
| sumup/sumup-mcp mcp.sumup.com SumUp MCP Server. | 8 | Codex, OpenCode | 1 | 471 tok |
| Aradotso/OpenAra ara.so Open-source Computer Use in any agent. | 8 | Codex, OpenCode | 1 | 319 tok |
| tensorfreitas/lunatask-mcp Unofficial Lunatask MCP server | 8 | Claude Code, Codex, OpenCode | 2 | 3,320 tok |
| DanWahlin/ai-repo-adventures danwahlin.github.io A fun, Model Context Protocol (MCP) server and/or HTML generator that transforms code repo | 8 | Codex, OpenCode | 1 | 3,282 tok |
| norandom/ragflow-claude-desktop-local-mcp because-security.com What if your AI agents could talk to your documents, so that you don't have to repeat your | 8 | Codex, OpenCode | 1 | 92 tok |
| bcharleson/smartlead-cli CLI and MCP server for the Smartlead.ai API — 142 commands for campaigns, leads, email acc | 8 | Codex, OpenCode | 1 | 2,096 tok |
| bartolli/kmd Knowledge-markdown CLI + MCP server. Validate, index, and serve a structured markdown vaul | 8 | Claude Code, Codex, OpenCode | 1 | 1,875 tok |
| antruongnguyen/mcp-server-manager A Model Context Protocol Server Manager (MCPSM) that orchestrates the MCP servers, manage | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,980 tok |
| hydrosquall/vega-mcp-server Custom interactive charts in LLM conversations using MCP Apps | 8 | Codex, OpenCode | 1 | 160 tok |
| drohi-r/beyond-mcp ecube-entertainment.com MCP server for Pangolin BEYOND with 117 tools for cue control, zones, effects, projector a | 8 | Claude Code, Codex, OpenCode | 4 | 195 tok |
| teamchrisfromthelc/local-wp-mcp MCP server providing WP-CLI, MySQL, and filesystem access for Local by Flywheel WordPress | 8 | Codex, OpenCode | 1 | 333 tok |
| Radek44/mcp-tauri-automation MCP Server for Tauri Application Automation | 8 | Claude Code, Codex, OpenCode | 2 | 651 tok |