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 |
|---|---|---|---|---|
| endlessblink/clean-cut-mcp Simply describe your animation, and watch Claude create stunning React-powered videos in a | 4 | Claude Code, Codex, OpenCode | 10 | 903 tok |
| consetto/calmcp consetto.com Cloud ALM MCP Server. Supports Tasks, Projects, Features, Requirements, Documents, Tests, | 4 | Claude Code, Codex, OpenCode | 2 | 1,440 tok |
| x0c/arthas-mcp MCP server that exposes Alibaba Arthas Java diagnostics to AI agents, with zero-config JVM | 4 | Codex, OpenCode | 1 | 991 tok |
| k-rister/ephemeral-buffer-mcp Ephemeral in-memory command output capture and hybrid search MCP server for coding agents. | 4 | Claude Code, Codex, OpenCode | 2 | 1,375 tok |
| sandraschi/bilibili-mcp Bilibili (B站) content-intelligence bridge - search, trending, video intel and transcript s | 4 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 6 | 2,097 tok |
| zai-one/telegram-ads-mcp zai.one MCP server for Telegram Ads (ads.telegram.org, TON): create, target, pause ads and read st | 4 | Claude Code, Codex, OpenCode | 2 | 413 tok |
| Muqaram0/oscp-companion oscp-companion.vercel.app OSCP methodology knowledge base with web UI and MCP server | 4 | Claude Code, Codex, OpenCode | 2 | 79 tok |
| Getopir/AgentCAD Independent agent-oriented parametric CAD platform based on FreeCAD, with a typed MCP gate | 4 | Codex, OpenCode | 1 | 2,245 tok |
| E-R-Butch/Goofish-Z Complete Xianyu integration package — GUI + Agent dual-driven (CLI/MCP/HTTP API). Combines | 4 | Codex, OpenCode | 1 | 200 tok |
| seonglae/openportfolio openportfolio.app Self-hosted portfolio tracker: every account as one net worth, the investor flows behind t | 4 | Codex, OpenCode | 1 | 1,997 tok |
| upgrade-ventures/upgradeseo upgrade.ventures Truly free, open-source SEO tools you self-host: keyword research, rank tracking, backlink | 4 | Claude Code, Codex, OpenCode | 18 | 1,300 tok |
| no-materials/hird A typed language for LLM agent systems on BEAM: effect-row tracking, auditable tool effect | 4 | Claude Code, Codex, OpenCode | 2 | 1,667 tok |
| frankxai/awesome-design-agent-skills Web-first design-agent skills: hierarchy, accessibility, interaction quality, and visual Q | 4 | Codex, OpenCode | 1 | 462 tok |
| qut-dmrc/buttermilk | 4 | Claude Code, Codex, Gemini CLI, OpenCode | 9 | 75 tok |
| panoptes/panoptes-utils panoptes.github.io A set of Astronomical utility functions. PANOPTES style. :hammer_and_wrench: :telescope: : | 4 | Codex, GitHub Copilot, Gemini CLI, OpenCode | 3 | 8,008 tok |
| skyengpro/iviss | 4 | Claude Code, Codex, OpenCode | 6 | 1,559 tok |
| solacecommunity/spring-solace-leader-election leader election for spring boot based on solace PubSub+ exclusive queue | 4 | Claude Code, Codex, GitHub Copilot | 2 | 792 tok |
| coze-dev/coze-sdk-gen | 4 | Codex, OpenCode | 2 | 2,931 tok |
| 1r0nw1ll/quantum-arithmetic-research Quantum Arithmetic (QA) System: Novel modular arithmetic framework for signal processing, | 4 | Claude Code, Codex, Gemini CLI, OpenCode | 9 | 5,478 tok |
| danstis/ado-asana-sync WIP: A tool to sync tasks from Azure DevOps -> Asana | 4 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 9,518 tok |
| multei/web multei.com.br Multei web app | 4 | Codex, Cursor, OpenCode | 2 | 828 tok |
| kyle-chalmers/ticketwright Ticket-driven analysis with Claude Code and other coding agents: prior work recalled, ever | 4 | Claude Code, Codex, OpenCode | 1 | 5,673 tok |
| Pattyboi101/indiestack indiestack.ai Dependency guardrail for AI coding agents — validates packages, catches hallucinations, 6, | 3 | Claude Code, Codex, OpenCode | 14 | 1,614 tok |
| jackin-project/jackin-dev Development-workflow skills plugin for the jackin project — spec-driven feature, PR, resea | 3 | Claude Code, Codex, OpenCode | 2 | 442 tok |
| Birfy/agentdescent thinkflowlab.github.io Gradient descent, but the parameters are agents — a parallel, asynchronous framework for s | 3 | Claude Code, Codex, OpenCode | 3 | 2,582 tok |
| Onlyicing1/Telegram-self-bot | 3 | Codex, OpenCode | 1 | 11,279 tok |
| bobbyjohnstx/tinycode Local-first, model-agnostic AI coding assistant — single Go binary, no runtime dependencie | 3 | Claude Code, Codex, OpenCode | 2 | 3,000 tok |
| kagan-sh/kagan kagan.sh Open-source desktop app for AI coding agents. Run Claude Code, Codex, and more in terminal | 3 | Codex, OpenCode | 1 | 2,027 tok |
| liangyou09/lyshell AI-native terminal & SSH client built for vibe coding. Harness launches DeepSeek, Codex, a | 3 | Claude Code, Codex, OpenCode | 2 | 6,976 tok |
| MineRoma/nekocode t.me Neko CLI for vibecoding | 3 | Codex, OpenCode | 1 | 112 tok |
| arsenyspb/comet-boundary hashicorp.com React Single Page Application (SPA) web client for Hashicorp Boundary | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,170 tok |
| Baughn/machine-config-template NixOS machine config template, preconfigured for AI assistance | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 5 | 1,484 tok |
| agent-sh/glidemq glide-mq message queue skills for agentsys - greenfield, BullMQ migration, Bee-Queue migra | 3 | Codex, OpenCode | 1 | 508 tok |
| AndyAnh174/vibe-hnindex hnindex.cloud | 3 | Claude Code, Codex, OpenCode | 2 | 3,793 tok |
| j7an/nexus-mcp MCP server that delegates tasks to coding agents (Claude, Codex, Antigravity) | 3 | Codex, OpenCode | 1 | 1,681 tok |
| vraj-ai/skills Agent skills for running software work as a factory, not a conversation: a four-stage pipe | 3 | Codex, OpenCode | 1 | 487 tok |
| namanxdev/MCPHub mcp-hub-pi.vercel.app Postman but for MCP Servers | 3 | Codex, OpenCode | 1 | 1,829 tok |
| Humiris/wwa-transform WWA Transform — Turn any website into an AI-powered agentfront. Claude Code plugin + Codex | 3 | Codex, OpenCode | 1 | 252 tok |
| astandrik/codex-pets pets.ydb-qdrant.tech Community gallery, CLI, and MCP service for Codex-compatible animated pets, backed by YDB. | 3 | Codex, OpenCode | 1 | 2,048 tok |
| jackychanisnotme/ccNexus Smart API endpoint rotation proxy and local API provider for Codex CLI/GUI, Claude Code CL | 3 | Claude Code, Codex, OpenCode | 2 | 5,065 tok |
| holetexvn/memgw npmjs.com Shared long-term memory for AI coding agents — one local store for Claude Code, Codex CLI, | 3 | Claude Code, Codex, OpenCode | 2 | 1,022 tok |
| like-a-freedom/rusty-intervals-mcp Fast and lightweight MCP server for intervals.icu | 3 | Claude Code, Codex, OpenCode | 4 | 1,579 tok |
| tkpratardan/lemma AI harness for DS/ML workflows. | 3 | Codex, GitHub Copilot, OpenCode | 2 | 558 tok |
| renanflustosa/octo-cluster Lean Claude Code plugin: ship logical commits safely (direct or PR, never force-push), tur | 3 | Claude Code, Codex, OpenCode | 9 | 947 tok |
| msolecki/founder-os Claude Code / Codex plugin: the executive team you can't afford yet | 3 | Claude Code, Codex, OpenCode | 2 | 92 tok |
| jwilger/ai-plugins Development plugins for codex | 3 | Codex, OpenCode | 1 | 4,035 tok |
| alanhoff/newrelic-mcp | 3 | Codex | 3 | — |
| scrollDynasty/BrowserMesh npmjs.com Multi-agent browser MCP runtime for isolated, persistent, parallel Playwright sessions. Ru | 3 | Claude Code, Codex, OpenCode | 7 | 9,540 tok |
| ShiftinBits/constellation-mcp docs.constellationdev.io Code Intelligence Platform for AI Coding Assistants | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 5 | 3,330 tok |
| Dhi13man/oorep-mcp npmjs.com Model Context Protocol (MCP) server and client SDK that provides AI assistants with access | 3 | Codex, OpenCode | 1 | 917 tok |