22,053 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 agents7,521Claude Code6,606Data and AI3,688Backend and APIs3,494Languages3,401Planning3,209Git and workflow3,151Code review2,736Memory and context2,361Testing2,351DevOps and cloud2,300Writing and docs2,296Research2,295Frontend2,250Security2,004Productivity1,709
All Claude Code32,116 Codex23,280 OpenCode22,053 GitHub Copilot3,543 Gemini CLI1,915 Cursor1,736 Windsurf119 Kiro77
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| callstackincubator/agent-react-devtools Gives AI agents access to React DevTools ⚛️🤖 | 243 | Codex, OpenCode | 1 | 148 tok |
| NanmiCoder/open-image-prompts openimages.relakkesyang.org Open, local-first visual prompt archive with traceable prompt-image references and install | 243 | Codex, OpenCode | 1 | 1,323 tok |
| arcee-ai/nac Give AI agents ambitious work without losing the plot. nac is an open-source harness for l | 243 | Codex, OpenCode | 1 | 1,970 tok |
| Dictation354/paper-fetch-skill Fetch papers as agent-ready markdown — DOI/URL/title in, structured full text out. CLI · M | 242 | Codex, OpenCode | 1 | 709 tok |
| surendranb/google-analytics-mcp ga4mcp.com Google Analytics 4 data to AI agents, agentic workflows, and MCP clients. Give agents anal | 242 | Codex, OpenCode | 1 | 1,032 tok |
| felipebarcelospro/igniter-js igniterjs.com Igniter is a modern, type-safe HTTP framework designed to streamline the development of sc | 242 | Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 26,005 tok |
| jdrhyne/agent-skills A collection of AI agent skills for Clawdbot, Claude Code, Codex | 241 | Codex, OpenCode | 1 | 603 tok |
| masc-ucsc/livehd Live Hardware Development (LiveHD), a productive infrastructure for Synthesis and Simulati | 241 | Claude Code, Codex, OpenCode | 3 | 3,607 tok |
| osovv/grace-marketplace GRACE (Graph-RAG Anchored Code Engineering): open Agent Skills for contract-driven AI cod | 241 | Claude Code, Codex, OpenCode | 3 | 671 tok |
| doka-guide/platform doka.guide Doki platform: templates, styles, scripts, and everything needed to build a website. | 241 | Claude Code, Codex, OpenCode | 2 | 2,985 tok |
| responsibleai/ASSERT responsibleai.github.io Requirement-driven evaluation harness for AI agents and LLM applications. Generate behavio | 241 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 6 | 6,087 tok |
| vishalsachdev/canvas-mcp canvas-mcp.illinihunt.org Canvas LMS MCP server — up to 102 tools and 8 agent skills for students & educators. Works | 241 | Claude Code, Codex, OpenCode | 4 | 15,466 tok |
| johnku2011/boilerplates-with-ai-skills boilerplates-with-ai-skills.vercel.app | 240 | Codex, OpenCode | 1 | 936 tok |
| laiso/ts-bench laiso.github.io Benchmark CLI for comparing AI coding agents on TypeScript workloads. | 240 | Codex, GitHub Copilot, OpenCode | 2 | 343 tok |
| rayxuln/hastur-operation-plugin A plugin providing ability for executing any code on Godot Editor. So that any coding agen | 240 | Claude Code, OpenCode | 10 | — |
| udecode/plate-playground-template playground.platejs.org Plate AI template with React 19, Next 16, Tailwind 4, MCP. | 240 | Claude Code, Codex, OpenCode | 5 | 1,397 tok |
| scarletkc/vexor pypi.org A semantic search engine for files and code. | 240 | Claude Code, Codex, OpenCode | 2 | 990 tok |
| coconut-svsm/svsm COCONUT-SVSM | 240 | Codex, OpenCode | 1 | 4,005 tok |
| bitloops/bitloops bitloops.com Give AI coding agents the context they need to ship production-quality software. | 240 | Codex, OpenCode | 1 | 124 tok |
| langfuse/langfuse-docs langfuse.com 🪢 Open source agent evals & observability: Trace, evaluate, and improve LLM applications | 240 | Claude Code, Codex, OpenCode | 7 | 9 tok |
| cyanheads/git-mcp-server npmjs.com A Git MCP server for AI agents. STDIO & Streamable HTTP. | 240 | Claude Code, Codex, OpenCode | 2 | 5,716 tok |
| barretlee/agent-pulse barretlee.github.io Evidence-backed AI industry intelligence — trends, source updates, daily data refreshes, a | 240 | Codex, OpenCode | 1 | 2,533 tok |
| maxwell2732/codex-stata-for-economists A Codex Stata pipeline for Economists by 朱晨 | Genetic Social Science Research. | 240 | Claude Code, Codex, OpenCode | 33 | 5,263 tok |
| harshalgajjar/Reminal reminal.app Close the lid and walk away — every window, desktop and terminal on your machines, live in | 240 | Codex, OpenCode | 1 | 955 tok |
| easemob/im_flutter_sdk Easemob IM Flutter SDK for quickly integrating instant messaging functionality. | 239 | Codex, OpenCode | 1 | 2,448 tok |
| lalitgehani/SnackBase snackbase.dev SnackBase is a Python/FastAPI-based BaaS providing auto-generated REST APIs, multi-tenancy | 239 | Claude Code, Codex, OpenCode | 2 | 4,006 tok |
| ProjectDXAI/labrat dxrg.ai Autonomous multi-branch research lab. Branches compete for compute budget. The system conv | 239 | Claude Code, Codex, OpenCode | 3 | 1,280 tok |
| LoD-Dawn/Fast-Vben-Admin 114.132.74.2 Fast Vben Admin is a modular full-stack administration platform for back-office and multi- | 239 | Codex, OpenCode | 1 | 2,503 tok |
| codecoradev/uteke codecora.dev 🧠 The Brain for Your AI — Local-first memory engine for AI agents. Store, recall, and sea | 239 | Claude Code, Codex, OpenCode | 2 | 661 tok |
| tim-smart/effect-mcp | 239 | Codex, OpenCode | 1 | 3,645 tok |
| OpenTouryoProject/OpenTouryo opentouryo.osscons.jp OpenTouryo is an application framework for .NET developed from the accumulated know-how of | 238 | Claude Code, Codex, OpenCode | 2 | 5,802 tok |
| gridaco/cors.sh cors.sh Sick of CORS Errors? | 238 | Claude Code, Codex, OpenCode | 2 | 830 tok |
| syabro/mdtask The spec-driven development system where specs and tasks live in your repo and never drift | 238 | Claude Code, Codex, OpenCode | 2 | 713 tok |
| acryldev/acryl acryl.dev ACRYL - Agent Context Relay Yielding Lifecycles. One persistent workspace, one canonical c | 238 | Claude Code, Codex, OpenCode | 12 | 2,382 tok |
| justrach/codegraff codegraff.com graff — a fast agentic coding harness in Zig: multi-provider, MCP, workflows, DGM evolutio | 238 | Claude Code, Codex, OpenCode | 2 | 2,417 tok |
| Hoylon/peerbridge-mcp Local-first, auditable multi-agent control room for coding, review, evidence, and private | 238 | Codex, OpenCode | 1 | 200 tok |
| PerforatedAI/PerforatedAI Add Dendrites to your PyTorch Project | 237 | Codex, OpenCode | 1 | 438 tok |
| coollabsio/maxio MaxIO, a better MinIO | 237 | Claude Code, Codex, OpenCode | 2 | 3,883 tok |
| Alexwtlf/agentic-product-demo Create polished product demo videos with AI coding agents and Remotion. The UI is code, no | 237 | Claude Code, Codex, OpenCode | 2 | 1,158 tok |
| feiskyer/codex-settings Curated skills, profiles, and config templates that supercharge Codex CLI — multi-model, d | 236 | Codex, OpenCode | 1 | 1,236 tok |
| TryGhost/ActivityPub activitypub.ghost.org A full-featured ActivityPub server for networked publishing with Ghost | 236 | Claude Code, Codex, OpenCode | 2 | 1,811 tok |
| oculus-samples/Unity-MRMotifs The developer community is beginning to show the world why Mixed Reality can be special. D | 236 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 6 | 1,089 tok |
| Khalidabdi1/design-ai | 236 | Codex, OpenCode | 1 | 337 tok |
| lynote-ai/humanize-text-skill lynote.ai Free AI Humanizer: Humanize AI Text Online | 236 | Claude Code, Codex, OpenCode | 2 | 392 tok |
| yuque/yuque-mcp-server Yuque MCP Server - Model Context Protocol server for Yuque API | 236 | Codex, OpenCode | 1 | 714 tok |
| alyraffauf/hoenn Multi-host NixOS, Darwin, and system-manager configurations with Nix. | 235 | Codex, OpenCode | 1 | 384 tok |
| fugazi/test-automation-skills-agents A practical library of agents, instructions, and skills designed specifically for QA Autom | 235 | Claude Code, Codex, OpenCode | 2 | 1,789 tok |
| gameknife/gkNextEngine gameknife.github.io gkNextEngine: cross platform 3D game engine written in modern c++ and vulkan with modern r | 235 | Claude Code, Codex, OpenCode | 2 | 8,586 tok |
| cyjake/leoric leoric.js.org 👑 JavaScript ORM for MySQL, PostgreSQL, and SQLite. | 234 | Codex, OpenCode | 1 | 1,259 tok |
| holtwood/awesome-cursorrules-zh lessup.github.io A curated collection of Cursor AI programming rules | 132+ rules covering 32 areas, includ | 234 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,162 tok |