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 |
|---|---|---|---|---|
| Beneficial-AI-Foundation/FloatSpec Formally Verified Float Implementation with lean4 | 21 | Claude Code, Codex, OpenCode | 2 | 7,741 tok |
| zitadel/nextgen zitadel-next-docs.vercel.app A Zitadel Preview | 21 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 10 | 9,606 tok |
| ishandutta2007/Awesome-Agent-Skills Skills for coding agents 🌟 Star if you like it! 🌟 | 21 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,117 tok |
| GCWing/Sparo-OS gcwing.github.io Sparo OS is an agentic OS born for the AI era. It explores "AI as a system," making softwa | 21 | Codex, OpenCode | 1 | 2,819 tok |
| jtvargas/SnipKey | 21 | Codex, OpenCode | 1 | 7,751 tok |
| Lifecharger/auto-game-builder Self-hosted game project management system for indie developers | 21 | Claude Code, Codex, OpenCode | 2 | 12,320 tok |
| Cznorth/winkterm cznorth.github.io AI that shares your terminal session. Open-source AI terminal where the AI types commands | 21 | Claude Code, Codex, OpenCode | 2 | 5,157 tok |
| bradautomates/focus-group Clone your customers from real sales-call transcripts and run them as a standing focus gro | 21 | Claude Code, Codex, OpenCode | 2 | 935 tok |
| meesii/codex-mcp Codex-MCP for ChatGPT Web | 21 | Codex, OpenCode | 1 | 2,201 tok |
| ariklapid/pyslang-mcp pyslang-mcp is a read-only Model Context Protocol server for compiler-backed Verilog and S | 21 | Codex, OpenCode | 1 | 1,439 tok |
| pyck-ai/pyck-oss pyck.ai An Open-Source warehousing framework, engineered for the AI era | 21 | Claude Code, Codex, OpenCode | 2 | 1,959 tok |
| Joe-rq/harness-lab A Harness Engineering practice framework inspired by OpenAI, gstack, and Tencent engineeri | 21 | Claude Code, Codex, OpenCode | 16 | 4,859 tok |
| ufna/VaCuus Modern, ultra-optimized multithreaded web UI for Unreal Engine (Win/Mac/Linux/Android/iOS) | 21 | Claude Code, Codex, OpenCode | 5 | 5,787 tok |
| nokkies/ModbusForge ModbusForge — .NET 8 Avalonia Modbus TCP/RTU/ASCII client/server with simulation, trending | 21 | Claude Code, Codex, OpenCode | 2 | 1,115 tok |
| MylesBorins/athanor personal LLM alchemy | 21 | Codex, OpenCode | 1 | 4,837 tok |
| AyanbekDos/ponystack Think expensive, write cheap. A Claude Code plugin that marries gstack's process with pony | 21 | Codex, OpenCode | 1 | 325 tok |
| skwashd/ccodolo Multi-Agent Coding Environment | 21 | Claude Code, Codex, OpenCode | 2 | 2,790 tok |
| bb8ad8/addroid-oss AdDroid OSS — self-hostable, GitOps-driven Meta ad operations console. | 21 | Codex, OpenCode | 1 | 701 tok |
| ekbatan-io/ekbatan ekbatan-io.github.io Modern Java persistence framework for Event-driven systems. Built-in outbox pattern. Atomi | 21 | Claude Code, Codex, OpenCode | 5 | 18,159 tok |
| yideng966/LightAgent | 21 | Codex, OpenCode | 1 | 19,455 tok |
| mikekelly/promode A Claude Code plugin designed to make efficient use of Fable on usage credits. | 21 | Claude Code, Codex, OpenCode | 3 | 2,123 tok |
| opensupplyhub/open-supply-hub | 21 | Claude Code, Codex, OpenCode | 24 | 1,404 tok |
| itcaat/rcmd Use the right ⌘ + key to switch application | 21 | Codex, OpenCode | 1 | 974 tok |
| justinwetch/Skill-RSI Skill RSI is a recursive self-improvement loop for Agent Skills, grounded in evals. Standa | 21 | Claude Code, Codex, OpenCode | 2 | 780 tok |
| niyazmft/droid-ai-toolkit High-performance toolkit for running AI tools (OpenClaw, Pi Agent, n8n, Ollama, Hermes) na | 21 | Codex, OpenCode | 1 | 4,978 tok |
| JoeChen2me/RK-MediaProject | 21 | Claude Code, Codex, OpenCode | 2 | 650 tok |
| krivitsky/professional-agentic-product-engineering professional-agentic-product-engine.vercel.app A guide on Professional Agentic Product Engineering with Claude Code — from tier 1 to tier | 21 | Claude Code, Codex, OpenCode | 5 | 8,049 tok |
| clear0215/research-planning-architect a research planning skills | 21 | Codex, OpenCode | 1 | 163 tok |
| rv198-star/Mindthus If you think AI’s analytical and judgment capabilities are inferior to humans, perhaps you | 21 | Codex, OpenCode | 1 | 3,808 tok |
| Gaurav-Gosain/golars golars.gaurav.zip Pure-Go DataFrames modeled on polars, built on Apache Arrow. No cgo. | 21 | Claude Code, Codex, OpenCode | 2 | 2,162 tok |
| nirholas/analyze-ethereum-address Analyze Efficient Ethereum Addresses | 21 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 616 tok |
| obetomuniz/web-ai-sdk web-ai-sdk.dev web-ai-sdk: TypeScript SDK for the Web AI surface (Prompt, Writer, Rewriter, Proofreader, | 21 | Codex, OpenCode | 1 | 5 tok |
| MnemeHQ/mneme mnemehq.com Open-source architectural drift prevention for the agentic AI SDLC. Deterministic guardrai | 21 | Claude Code, Codex, OpenCode | 2 | 1,308 tok |
| standardbeagle/agnt dev.standardbeagle.com MCP Server for Development Tooling - Project Detection, Process Management, and Reverse Pr | 21 | Claude Code, Codex, OpenCode | 8 | 5,968 tok |
| starslingdev/skills starsling.dev Agent skills from StarSling | 21 | Claude Code, Codex, OpenCode | 2 | 3,264 tok |
| cyijun/china-financial-services AI agent plugins & managed-agent templates for China A-share market research and financial | 21 | Claude Code, Codex, OpenCode | 2 | 1,506 tok |
| lac5q/beastmode Beastmode: MofA (Mixture of Agents) orchestration framework for Hermes/OpenClaw/Codex with | 21 | Claude Code, Codex, OpenCode | 8 | 1,900 tok |
| cz1993/vibe-coding-repository-standard Open-source repository standard, starter template, validator, and multi-agent workflow for | 21 | Codex, OpenCode | 1 | 646 tok |
| riccardoerra/designer-to-builder Companion repository for the Figma Designer to Builder webinar series | 21 | Codex, OpenCode | 1 | 175 tok |
| riccardoerrafigma/designer-to-builder | 21 | Codex, OpenCode | 1 | 175 tok |
| yeasy/AgentGo One step to enable best-practices for AI agents — drop into any project and enjoy the magi | 21 | Codex, OpenCode | 1 | 5,798 tok |
| Intense-Visions/harness-engineering Mechanical constraints for AI agents. Ship faster without the chaos. | 21 | Claude Code, Codex, OpenCode | 6 | 24,734 tok |
| smekai/taskplanner | 21 | Claude Code, Codex, Cursor, OpenCode | 4 | 8,035 tok |
| AgriciDaniel/sync Evidence-gated Claude and Codex council orchestration. | 21 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 475 tok |
| samzong/gmc gmc.samzong.me Parallel git worktrees for parallel AI agents — plus AI-generated commits. | 21 | Codex, OpenCode | 1 | 2,386 tok |
| Qswhisper/PVF-Ai-Agent-Workbench tieba.baidu.com Portable AI Agent Workbench for safer DNF/DFO Script.pvf inspection and editing. Self-cont | 21 | Codex, OpenCode | 2 | 4,535 tok |
| emircbngl/blender-optics-simulator Blender add-on to design, simulate, align & render optical setups — live beam tracing, kin | 21 | Claude Code, Codex, OpenCode | 7 | 1,085 tok |
| awslabs/AutoHelix Agent-powered iterative optimization: put an AI agent in a verified improvement loop. | 21 | Claude Code, Codex, OpenCode | 2 | 1,656 tok |
| AeonDave/malskill Offensive oriented Skill for agentic AI | 21 | Codex, OpenCode | 1 | 1,209 tok |
| harness/harness-ai | 21 | Claude Code, Codex, OpenCode | 2 | 2,692 tok |