44,817 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 agents8,442Claude Code6,875Data and AI3,584Git and workflow3,574Backend and APIs3,550Languages3,468Planning3,315Code review2,876Testing2,653DevOps and cloud2,462Writing and docs2,461Memory and context2,373Research2,315Frontend2,301Security2,167Project management1,944
All Claude Code32,436 Codex24,692 OpenCode23,614 GitHub Copilot3,700 Gemini CLI2,016 Cursor1,769 Windsurf202 Kiro113
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| NirDiamant/Prompt_Engineering diamant-ai.com 22 prompt engineering techniques with hands-on Jupyter Notebook tutorials, from fundamenta | 7,926 | Codex, OpenCode | 1 | 767 tok |
| deanpeters/Product-Manager-Skills Product Management skills framework built on battle-tested methods for Claude Code, Cowork | 7,891 | Claude Code, Codex, OpenCode | 2 | 12,521 tok |
| gilbarbara/react-joyride react-joyride.com Create guided tours in your apps | 7,891 | Claude Code | 1 | 1,893 tok |
| ed-donner/llm_engineering Repo to accompany my mastering LLM engineering course | 7,890 | GitHub Copilot | 1 | 90 tok |
| datahaven-xyz/datahaven datahaven.xyz An EVM compatible Substrate chain, powered by StorageHub and secured by EigenLayer | 7,876 | Claude Code | 1 | 1,227 tok |
| vercel-labs/native native-sdk.dev Toolkit for building native desktop apps | 7,828 | Codex, OpenCode | 1 | 851 tok |
| Gentleman-Programming/engram engram.gentlemanprogramming.com Persistent memory system for AI coding agents. Agent-agnostic Go binary with SQLite + FTS5 | 7,815 | Codex, OpenCode | 1 | 1,042 tok |
| Azure-Samples/azure-search-openai-demo azure.microsoft.com A sample app for the Retrieval-Augmented Generation pattern running in Azure, using Azure | 7,803 | Codex, GitHub Copilot, OpenCode | 2 | 5,951 tok |
| HuLaSpark/HuLa hulaspark.com 🍀 A cross-platform instant messaging desktop application with exceptional performance bui | 7,801 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode, Windsurf | 5 | 5 tok |
| MystenLabs/sui sui.io Sui, a next-generation smart contract platform with high throughput, low latency, and an | 7,782 | Claude Code, Codex, OpenCode | 9 | 1,691 tok |
| openai/plugins OpenAI Plugins | 7,777 | Codex | 1 | — |
| Osmantic/ODS discord.gg ODS V3 Pre-Release: Public testing and refinement ahead of the official V3 launch. Turn yo | 7,775 | Claude Code, GitHub Copilot | 13 | 2,312 tok |
| JetBrains/thinkrail thinkrail.ai Vibe code with pi in a lightweight, real IDE that customises itself around the way you wor | 7,763 | Codex, OpenCode | 1 | 2,153 tok |
| mufeedvh/code2prompt code2prompt.dev A CLI tool to convert your codebase into a single LLM prompt with source tree, prompt temp | 7,747 | Claude Code, Codex, OpenCode | 7 | 299 tok |
| algorithmicsuperintelligence/openevolve Open-source implementation of AlphaEvolve | 7,718 | Claude Code, GitHub Copilot | 2 | 1,195 tok |
| magnitudedev/magnitude magnitude.dev Open source inference engine that tunes its kernels on your hardware to find the fastest w | 7,713 | Claude Code, Codex, OpenCode | 2 | 2,276 tok |
| anthropics/defending-code-reference-harness claude.com Skills for threat modeling, scanning, triage, patching, plus an autonomous scanning harnes | 7,710 | Claude Code | 2 | 4,052 tok |
| aidenybai/react-grab react-grab.com Copy any UI element for your agent | 7,703 | Codex, OpenCode | 1 | 2,639 tok |
| samuelclay/NewsBlur newsblur.com NewsBlur is a personal news reader that brings people together to talk about the world. A | 7,680 | Claude Code, Codex, OpenCode | 17 | 7,143 tok |
| ningzimu/codex-ppt-skill ppt-skill.ningzimu.vip GPT-Image-2 PPT Generator Skill for Creating Image-Based PowerPoint Presentations in Codex | 7,666 | Codex, OpenCode | 1 | 340 tok |
| microsoft/TinyTroupe LLM-powered multiagent persona simulation for imagination enhancement and business insight | 7,641 | GitHub Copilot | 4 | 2,629 tok |
| lijigang/ljg-skills | 7,632 | Claude Code | 1 | 959 tok |
| tailcallhq/forgecode forgecode.dev AI enabled pair programmer for Claude, GPT, O Series, Grok, Deepseek, Gemini and 300+ mode | 7,630 | Codex, OpenCode | 1 | 1,742 tok |
| xerrors/Yuxi xerrors.github.io A self-hosted multi-tenant knowledge agent platform: unified RAG, knowledge graphs, multi- | 7,613 | Claude Code, Codex, OpenCode | 2 | 2,299 tok |
| mnfst/manifest manifest.build Open Source LLM Gateway 🦚 | 7,611 | Claude Code, Codex, OpenCode | 4 | 20,357 tok |
| TheCraigHewitt/seomachine seomachine.io A specialized Claude Code workspace for creating long-form, SEO-optimized blog content for | 7,578 | Claude Code | 62 | 1,368 tok |
| Sequel-Ace/Sequel-Ace sequel-ace.com MySQL/MariaDB database management for macOS | 7,560 | Codex, OpenCode | 1 | 3,550 tok |
| refly-ai/refly refly.ai The first open-source agent skills builder. Define skills by vibe workflow, run on Claude | 7,547 | Cursor | 1 | 194 tok |
| wbh604/UZI-Skill This is how cold hard cash flows into my warm pockets — hot-money trader (UZI) Skills — we | 7,537 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 7,005 tok |
| FastLED/FastLED fastled.io The FastLED library for colored LED animation on Arduino. Please direct questions/request | 7,525 | Claude Code, Codex, Cursor, Gemini CLI, OpenCode | 64 | 27,759 tok |
| traceloop/openllmetry traceloop.com Open-source observability for your GenAI or LLM application, based on OpenTelemetry | 7,523 | Claude Code | 1 | 636 tok |
| tw93/Waza 🥷 Engineering habits you already know, turned into skills AI assistants like Claude Code, | 7,522 | Codex, OpenCode | 1 | 5,127 tok |
| anomalyco/models.dev models.dev An open-source database of AI models. | 7,521 | Codex, OpenCode | 5 | 6,575 tok |
| zhukunpenglinyutong/jetbrains-cc-gui plugins.jetbrains.com Jetbrains Claude Code and Codex GUI Plugin | 7,508 | Claude Code, Codex | 1 | — |
| mutonby/openshorts openshorts.app Open source AI clip generator: turns long videos into viral 9:16 shorts with AI moment det | 7,508 | Claude Code | 1 | 2,260 tok |
| modelcontextprotocol/registry A community driven registry service for Model Context Protocol (MCP) servers. | 7,445 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 381 tok |
| NVIDIA-NeMo/Guardrails docs.nvidia.com NeMo Guardrails is an open-source toolkit for easily adding programmable guardrails to LLM | 7,439 | Claude Code, Codex, OpenCode | 2 | 2,438 tok |
| Zipstack/unstract unstract.com LLM-Driven Extraction of Unstructured Data — Built for API Deployments & ETL Pipeline Work | 7,421 | Claude Code | 4 | — |
| wiremock/wiremock wiremock.org A tool for mocking HTTP services | 7,418 | Claude Code, Codex, OpenCode | 3 | 596 tok |
| TraderAlice/OpenAlice openalice.ai Your one-person Wall Street. An AI trading agent covering equities, crypto, commodities, f | 7,411 | Claude Code, Codex, OpenCode | 2 | 787 tok |
| xirong/my-git Git as the control plane for AI-native software engineering | A Git change-control handboo | 7,403 | Codex, OpenCode | 1 | 493 tok |
| Tencent/AI-Infra-Guard tencent.github.io A full-stack AI Red Teaming platform securing AI ecosystems via Agent Scan, Skills Scan, M | 7,392 | Claude Code, Codex, OpenCode | 2 | 2,177 tok |
| Devin-AXIS/iPolloWork ipollo.ai Enterprise-grade, local-first Agent Workbench for people and agent teams. A unified multi- | 7,392 | Codex, OpenCode | 1 | 1,722 tok |
| gosom/google-maps-scraper scrape data from Google Maps. Extracts data such as the name, address, phone number, webs | 7,382 | Codex, OpenCode | 1 | 289 tok |
| kyegomez/swarms docs.swarms.world The Enterprise-Grade Multi-Agent Orchestration Framework. Website: https://swarms.ai | 7,353 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 11,047 tok |
| telepresenceio/telepresence telepresence.io Local development against a remote Kubernetes or OpenShift cluster | 7,326 | Claude Code, Codex, OpenCode | 10 | 5,219 tok |
| Serial-Studio/Serial-Studio serial-studio.com Open-source telemetry dashboard. Supports UART, BLE, MQTT, Modbus, CAN Bus and more. | 7,312 | Claude Code, Codex, OpenCode | 22 | 14,489 tok |
| civitai/civitai civitai.com A repository of models, textual inversions, and more | 7,311 | Claude Code, Codex, OpenCode | 73 | 2,848 tok |
| BrowserMCP/mcp browsermcp.io Browser MCP is a Model Context Provider (MCP) server that allows AI applications to contro | 7,297 | Codex, OpenCode | 1 | 861 tok |
| htdt/godogen x.com Autonomous game development with Claude Code and Codex | 7,295 | Claude Code, Codex, OpenCode | 2 | 435 tok |