43,484 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 agents7,473Claude Code6,589Data and AI3,693Backend and APIs3,491Languages3,403Planning3,201Git and workflow3,131Code review2,731Memory and context2,354Testing2,335DevOps and cloud2,298Research2,288Writing and docs2,284Frontend2,242Security1,995Productivity1,703
All Claude Code32,066 Codex23,211 OpenCode21,984 GitHub Copilot3,528 Gemini CLI1,908 Cursor1,730 Windsurf104 Kiro70
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| lopopolo/harness-engineering openai.com 🐎 Ryan Lopopolo’s anthology, field guide, and agent context bundle for harness engineerin | 2,684 | Claude Code, Codex, OpenCode | 2 | 1,339 tok |
| likaia/nginxpulse nginx-pulse.kaisir.cn A lightweight Nginx access log analysis and visualization panel providing real-time statis | 2,684 | Codex | 1 | — |
| plbrault/youre-the-os plbrault.github.io A game where you are a computer's OS and you have to manage processes, memory and I/O even | 2,682 | Codex, OpenCode | 1 | 632 tok |
| jgravelle/jcodemunch-mcp jcodemunch.com Cut AI token costs 95%+ on code exploration. The leading MCP server for precise, symbol-le | 2,678 | Claude Code, Codex, OpenCode | 24 | 37,966 tok |
| glincker/thesvg thesvg.org 6,500+ brand SVG icons for developers. Tree-shakeable, typed, open source. npm i thesvg | 2,678 | Codex, OpenCode | 1 | 1,079 tok |
| CyberStrikeus/CyberStrike cyberstrike.io Open-source AI-powered offensive security harness for automated penetration testing. | 2,676 | Claude Code | 1 | — |
| medplum/medplum medplum.com Medplum is a healthcare platform that helps you quickly develop high-quality compliant app | 2,670 | Claude Code | 1 | — |
| Windy3f3f3f3f/claude-code-from-scratch windy3f3f3f3f.github.io Build your own Claude Code from scratch. 🔍 Claude Code is open-sourced with 500,000 lines | 2,667 | Claude Code | 4 | 31 tok |
| huggingface/tau twotimespi.dev A Python port of Pi’s minimalist coding agent. | 2,667 | Codex, OpenCode | 1 | 678 tok |
| mongodb/mongo-java-driver mongodb.com The official MongoDB drivers for Java, Kotlin, and Scala | 2,661 | Claude Code, Codex, OpenCode | 4 | 1,002 tok |
| org2AI/ORG2 System of record for how agents build software: Built-in rust harness & 20+ CLIs. | 2,651 | Codex, OpenCode | 1 | 3,019 tok |
| wassim249/fastapi-langgraph-agent-production-ready-template A production-ready FastAPI template for building AI agent applications with LangGraph inte | 2,651 | Claude Code, Codex, OpenCode | 2 | 1,960 tok |
| heshengtao/super-agent-party agentparty.top ⭐ All-in-one AI companion! Super Agent Party = Self-hosted neuro sama + openclaw! ⭐ | 2,642 | Codex, OpenCode | 1 | 2,311 tok |
| gridaco/grida grida.co Grida — Open Canvas | 2,636 | Claude Code, Codex, OpenCode | 30 | 2,504 tok |
| module-federation/core module-federation.io Module Federation is a concept that allows developers to share code and resources across m | 2,636 | Claude Code, Codex, Cursor, OpenCode | 9 | 6,288 tok |
| marketcalls/openalgo docs.openalgo.in Open Source Algo Trading Platform for Everyone | 2,634 | Claude Code | 8 | 7,879 tok |
| SummerSec/ShiroAttack2 Comprehensive exploitation of Shiro deserialization vulnerabilities (for authorized testin | 2,627 | Claude Code, Codex, OpenCode | 3 | 2,182 tok |
| centminmod/my-claude-code-setup threads.com Shared starter template configuration and CLAUDE.md memory bank system for Claude Code | 2,626 | Claude Code, Codex, Gemini CLI, OpenCode | 5 | 2,545 tok |
| LearnPrompt/LearnPrompt learnprompt.pro A completely free and open-source AIGC course, currently supporting Claude Code, Codex, He | 2,623 | Claude Code | 1 | — |
| nunit/nunit nunit.org NUnit Framework | 2,623 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 719 tok |
| samuelgursky/davinci-resolve-mcp MCP server integration for DaVinci Resolve Studio | 2,622 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 30 | 7,212 tok |
| plexe-ai/plexe plexe.ai ✨ Build a machine learning model from a prompt | 2,619 | Claude Code, Codex, OpenCode | 2 | 1,434 tok |
| ForceInjection/AI-fundamentals forceinjection.github.io AI fundamentals—GPU architecture, CUDA programming, large language model basics, and AI Ag | 2,613 | Claude Code, Codex, OpenCode | 2 | 2,986 tok |
| yaojingang/yao-meta-skill YAO = Yielding AI Outcomes. A rigorous engineering, evaluation, governance, and portabilit | 2,609 | Codex, OpenCode | 1 | 3,710 tok |
| lncrawl/lightnovel-crawler lncrawl.bitanon.dev Generate and download e-books from online sources. | 2,592 | Claude Code, Codex, OpenCode | 10 | 3,111 tok |
| supabase/agent-skills supabase.com Agent Skills to help developers using AI agents with Supabase | 2,592 | Claude Code, Codex, OpenCode | 2 | 1,633 tok |
| alexbelgium/hassio-addons My homeassistant addons | 2,590 | Claude Code, GitHub Copilot | 6 | 3,120 tok |
| zilliztech/memsearch zilliztech.github.io A persistent, unified memory layer for all your AI agents (e.g. Claude Code, Codex, DSH), | 2,586 | Claude Code | 1 | 2,348 tok |
| heyitsnoah/claudesidian | 2,583 | Claude Code, Codex | 23 | — |
| HarleyCoops/Math-To-Manim Create Epic Math and Physics Animations & Study Notes From Text and Images. | 2,583 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 12,381 tok |
| oxsecurity/megalinter megalinter.io 🦙 MegaLinter analyzes 50 languages, 22 formats, 21 tooling formats, excessive copy-pastes | 2,582 | Claude Code | 34 | 2,792 tok |
| FailproofAI/failproofai befailproof.ai Observability and enforcement for AI agent harnesses. Capture every run and runtime reliab | 2,578 | Claude Code, Codex, OpenCode | 24 | 20,939 tok |
| harbor-framework/terminal-bench-1 tbench.ai A benchmark for LLMs on complicated tasks in the terminal | 2,575 | Claude Code, GitHub Copilot | 2 | 1,389 tok |
| chrisryugj/korean-law-mcp npmjs.com An MCP server for directly querying Korea's National Law Information Center through an LLM | 2,572 | Claude Code | 2 | 5,891 tok |
| itayinbarr/little-coder itayinbarr.github.io A harness optimized to smaller LLMs | 2,572 | Codex, OpenCode | 1 | 1,788 tok |
| kayba-ai/agentic-context-engine kayba.ai 🧠 Make your agents learn from experience. Now available as a hosted solution at kayba.ai | 2,568 | Claude Code, Codex, OpenCode | 19 | 2,759 tok |
| gvzdv/claudish-to-english | 2,566 | Claude Code | 2 | 1,421 tok |
| chrisbenincasa/tunarr tunarr.com Create a classic TV experience using your own media - IPTV backed by Plex/Jellyfin/Emby/NF | 2,566 | Claude Code | 8 | 2,236 tok |
| Azure/azure-sdk-for-java This repository is for active development of the Azure SDK for Java. For consumers of the | 2,565 | Claude Code, Codex, GitHub Copilot, OpenCode | 16 | 3,984 tok |
| neilotoole/sq sq.io sq data wrangler | 2,564 | Claude Code, Codex, OpenCode | 5 | 3,942 tok |
| huggingface/OpenEnv huggingface.co An interface library for RL post training with environments. | 2,563 | Claude Code, Codex, OpenCode | 32 | 3,744 tok |
| Agent-Field/agentfield agentfield.ai Build, run and scale AI agents like API and microservices | 2,559 | Claude Code, Codex, OpenCode | 2 | 4,146 tok |
| git-ai-project/git-ai usegitai.com A Git extension for tracking the AI-generated code in your repos | 2,556 | Claude Code, Codex, OpenCode | 2 | 4,601 tok |
| graphistry/pygraphistry PyGraphistry is a Python library to quickly load, shape, embed, and explore big graphs wit | 2,554 | Claude Code, Codex, OpenCode | 2 | 502 tok |
| microsoft/foundry-local foundrylocal.ai | 2,545 | GitHub Copilot | 14 | 10,736 tok |
| lichess-org/mobile Lichess mobile app | 2,534 | Claude Code | 1 | 4,362 tok |
| makecindy/cindy cindy.app Consider it done. The open-source AI agent that works out of the box · Think it, and make | 2,521 | Claude Code, Codex, OpenCode | 2 | 4,540 tok |
| kingkongshot/Pensieve tore your decisions and principles. Claude reads them to make better choices. | 2,515 | Codex | 1 | — |
| openwebf/webf openwebf.com Bring JavaScript and Web Dev to Flutter | 2,515 | Claude Code, Codex, OpenCode | 13 | 2,407 tok |
| expo/skills A collection of AI agent skills for working with Expo projects and Expo Application Servic | 2,514 | Claude Code, Codex, OpenCode | 2 | 2,546 tok |