22,145 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 |
|---|---|---|---|---|
| diyiwuyan/onebench Open-source, local-first personal workbench for everyday users. | 19 | Codex, OpenCode | 1 | 723 tok |
| CanglongCl/dsh-web-review A web preview and element annotation plugin for the DeepSeek Harness Web GUI, enabling AI | 19 | Claude Code, Codex, OpenCode | 2 | 10,046 tok |
| viteinfinite/sync-skills Synchronize agent skill definitions between .claude and .codex directories | 19 | Claude Code, Codex, OpenCode | 12 | 277 tok |
| pablostanley/efecto-plugin efecto.app AI design skills + 46 MCP tools for Claude Code, Cursor, Windsurf, Copilot, and any AI age | 19 | Codex, OpenCode | 1 | 606 tok |
| ma2za/google-news-api pypi.org Google News API Python client for Google News RSS search, top stories, async clients, URL | 19 | Claude Code, Codex, OpenCode | 3 | 763 tok |
| zapier/agent-skills skills.sh Agent skills for working with Zapier, maintained by Zapier teams. Indexed by skills.sh. | 19 | Claude Code, Codex, OpenCode | 2 | 1,628 tok |
| MarioZZJ/cc-notify-hooks mariozzj.github.io Agent response-waiting notification plugin (supports Claude Code, CodeX, DeepSeek Harness, | 19 | Claude Code, Codex, OpenCode | 2 | 2,577 tok |
| Open-Harness/open-harness open-harness.github.io | 19 | Claude Code, Codex, OpenCode | 5 | 6,022 tok |
| Corporationakht/LocalCodeCli A powerful local proxy for Claude Code CLI and Codex CLI supporting NVIDIA NIM, Google,Gem | 19 | Claude Code, Codex, OpenCode | 2 | 3,287 tok |
| drasticstatic/tradingview-mcp-jackson TradingView Desktop MCP — Fortuna trading system working copy. Upstream: LewisWJackson/tra | 19 | Claude Code, Codex, OpenCode | 2 | 4,393 tok |
| Fabric-Pro/fizzy-mcp fizzy.fabric.pro Model Context Protocol Server for Fizzy | 19 | Claude Code, Codex, OpenCode | 2 | 1,704 tok |
| sunnyday-technologies/CADCLAW The testing framework CAD never had — automated validation, interference detection, and st | 19 | Codex, OpenCode | 1 | 1,753 tok |
| donnfelker/loop-skills Autonomous, self-re-prompting agent loops for Claude Code — packaged as independently-inst | 19 | Claude Code, Codex, OpenCode | 2 | 1,262 tok |
| synthesisengineering/synthesis-skills Synthesis Skills — reusable AI agent skills built on the Agent Skills open standard. Insta | 19 | Claude Code, Codex, OpenCode | 2 | 1,326 tok |
| epicsagas/epic-harness epicsagas.github.io Multi-tool AI agent harness — 22 skills, self-evolving engine, unified memory, autonomous | 19 | Claude Code, Codex, OpenCode | 3 | 4,767 tok |
| ZenMux/skills ZenMux Skills Repo | 19 | Claude Code, Codex, OpenCode | 2 | 1,286 tok |
| aliasunder/vault-cortex npmjs.com Standalone MCP server for Obsidian vaults — hybrid search, structured memory, task managem | 19 | Claude Code, Codex, OpenCode | 5 | 20,624 tok |
| rlrghb/olkcli Outlook in your terminal | 19 | Claude Code, Codex, OpenCode | 2 | 6,203 tok |
| nikships/skills-registry skills-registry.dev Your personal GitHub registry for AI Agent Skills. One repo. EVERY agent. EVERY device. Lo | 19 | Claude Code, Codex, OpenCode | 2 | 659 tok |
| XZXZZX-Ai/bilibili-mcp Bilibili MCP tool A Bilibili MCP server | 19 | Claude Code, Codex, OpenCode | 14 | 1,197 tok |
| MackDing/andrej-karpathy-skills-zh Claude Code / Codex / Cursor AI coding rules: Chinese version of the Karpathy coding guide | 19 | Claude Code, Codex, OpenCode | 2 | 1,469 tok |
| nikandr-surkov/ai-saas-starter ai-saas-starter-six.vercel.app AI SaaS boilerplate for Next.js 16 — Better Auth, Stripe subscriptions, credits system, AI | 19 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 1,999 tok |
| lj22503/awesome-finai-tools-zn A comprehensive overview of Chinese financial AI tools: Market Data MCP, quantitative fram | 19 | Codex, OpenCode | 1 | 139 tok |
| agentmail-to/agentmail-plugins | 19 | Codex, OpenCode | 1 | 503 tok |
| ever-works/directory-web-template ever.works Open-Source Directory Website NextJs Boilerplate (part of Ever® Works™ Platform) - https:/ | 19 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 17,352 tok |
| shikokuchuo/secretbase shikokuchuo.net secretbase - Cryptographic Hash Functions and Data Encoding | 19 | Codex, OpenCode | 1 | 951 tok |
| volcengine/volcengine-skills | 19 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,793 tok |
| spotify/ads-agentic-tools A Claude Code plugin that lets you manage Spotify advertising campaigns through natural la | 18 | Claude Code, Codex, OpenCode | 2 | 4,819 tok |
| yuanqiyibiansheng/DeepSeek-Harness-GUI DeepSeek-Harness-GUI | 18 | Claude Code, Codex, OpenCode | 13 | 7,118 tok |
| eddmann/my-own-coding-agent Educational Python coding agent with provider-agnostic LLM support, skills system, and ext | 18 | Claude Code, Codex, OpenCode | 2 | 47 tok |
| sam-agents/sam SAM - Autonomous TDD agent system for Claude Code, Cursor, Gemini CLI, GitHub Copilot, and | 18 | Claude Code, Codex, OpenCode | 10 | 2,782 tok |
| paulnsorensen/easy-cheese cheeselord.dev Cheese your code 🧀 — high-quality results as easy as cheese. A portable, harness-agnostic | 18 | Codex, GitHub Copilot, OpenCode | 5 | 4,754 tok |
| speakeasy-api/skills speakeasy.com Agent Skills for SDK generation and OpenAPI tooling with Speakeasy CLI | 18 | Claude Code, Codex, OpenCode | 2 | 3,754 tok |
| jfrog/agent-belt Reproducible evaluation for AI coding agents. Multi-turn scenarios against Claude Code, Co | 18 | Codex, OpenCode | 1 | 2,594 tok |
| walkindude/gosymdb A Go symbol and call-graph database backed by SQLite. Query symbols, callers, callees, bla | 18 | Claude Code, Codex, OpenCode | 4 | 2,267 tok |
| joelazar/kagi-skills Skills for using Kagi APIs | 18 | Codex, OpenCode | 1 | 209 tok |
| kinoward/dayu-harness-skill Turn one-off AI collaboration prompts into long-running repository governance. · “把一次性的 AI | 18 | Codex, OpenCode | 1 | 4,589 tok |
| aiproxer/aiproxer Connect any LLM-powered client app, such as a coding agent, to any supported inference bac | 18 | Codex, Kiro, OpenCode | 5 | 6,638 tok |
| DocRoms/Kronn Self-hosted control plane for AI coding agents (Claude Code, Codex, Gemini, Ollama). Shar | 18 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Windsurf | 7 | 1,616 tok |
| liqiongyu/agentpack crates.io A declarative, safe control plane for deploying coding-agent assets across tools. | 18 | Codex, OpenCode | 2 | 1,011 tok |
| atomantic/UEMCP Python Unreal Engine Plugin and Node.js MCP Server | 18 | Claude Code, Codex, OpenCode | 6 | 1,656 tok |
| safe-agentic-world/nomos Test AI tool permissions in CI and require human approval before execution. Open-source CL | 18 | Claude Code, Codex, OpenCode | 2 | 2,211 tok |
| oneworks-ai/app oneworks.cloud One Works application monorepo for AI agents, plugins, desktop, web, CLI, and Relay. | 18 | Codex, OpenCode | 1 | 6,793 tok |
| pluginslab/wp-agentic-kit pluginslab.com Starter kit for agentic WordPress development. CLAUDE.md/AGENTS.md templates, the wordpres | 18 | Claude Code, Codex, OpenCode | 8 | 3,997 tok |
| Neeeophytee/ai-cost-cutter-skills flowstacks.xyz 10 skills that cut your AI bill with proof instead of vibes. MIT, works in Claude Code, Co | 18 | Claude Code, Codex, OpenCode | 2 | 1,328 tok |
| YangsonHung/awesome-agent-skills A collection of AI Agent Skills that provide professional domain capabilities for intellig | 18 | Claude Code, Codex, OpenCode | 2 | 1,651 tok |
| trabian/fluxwing-skills fluxwing.com Claude skills for generating ASCII components and screens for humans to review, and AI to | 18 | Claude Code, Codex, OpenCode | 2 | 5,484 tok |
| heurema/signum skill7.dev Risk-adaptive development pipeline with adversarial consensus code review | 18 | Codex, GitHub Copilot, OpenCode | 2 | 1,731 tok |
| O0000-code/CC-Workshop A macOS desktop app for managing Claude Code configurations — Skills, MCP Servers, and CLA | 18 | Claude Code, Codex, OpenCode | 5 | 4,012 tok |
| powersync-ja/agent-skills powersync.com Official agent skills for PowerSync | 18 | Claude Code, Codex, OpenCode | 2 | 472 tok |