How real projects configure their agents

23,307 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 agents7,541Claude Code6,614Data and AI3,687Backend and APIs3,492Languages3,397Planning3,211Git and workflow3,159Code review2,735Memory and context2,362Testing2,357DevOps and cloud2,306Writing and docs2,299Research2,296Frontend2,252Security2,009Productivity1,710

All Claude Code32,137 Codex23,307 OpenCode22,079 GitHub Copilot3,547 Gemini CLI1,916 Cursor1,738 Windsurf121 Kiro77

Project Stars Configures Files Always loaded
eclipse-mosaic/mosaic eclipse.dev Eclipse MOSAIC is a Multi-Domain and Multi-Scale Simulation Framework for Automated and Co 115 Codex, OpenCode 1 4,005 tok
dreadnode/agent-lens dreadnode.github.io Agent observability and replay tooling for AI safety & interpretability research. 115 Claude Code, Codex 2 2,762 tok
AMD-AGI/AgentKernelArena AgentKernelArena provides an end-to-end siloed-benchmarking environment where different LL 115 Claude Code, Codex, OpenCode 2 1,759 tok
render-oss/cli render.com The Official Render CLI 115 Codex, OpenCode 1 1,902 tok
nudt-sawlab/PiLoT Code for "PiLoT: Neural Pixel-to-3D Registration for UAV-based Ego and Target Geo-localiza 115 Codex, OpenCode 1 1,239 tok
dhakalnirajan/blender-open-mcp Open Models MCP for Blender Using Ollama 115 Codex, OpenCode 1 1,516 tok
backnotprop/orchestrator Agents orchestrating other agents 115 Claude Code, Codex, OpenCode 2 861 tok
DFKHelper/token-goat npmjs.com Token burn reducer and focus keeper for Claude Code, Codex, Copilot, Gemini CLI, and more: 115 Codex, GitHub Copilot, OpenCode 2 2,610 tok
Dicklesworthstone/frankenterm Terminal hypervisor for AI agent swarms: real-time pane capture, state-machine pattern det 115 Codex, OpenCode 1 19,349 tok
WackyGem/Fleur Fleur is a 100% AI-coded Shanghai and Shenzhen A-share investment research platform powere 115 Codex, OpenCode 1 3,914 tok
artcc/freelingo arturocarreterocalvo.com Open-source, self-hosted AI language learning platform with local or cloud LLMs, CEFR stud 115 Codex, OpenCode 3 5,311 tok
SeifBenayed/cloclo Open-source Claude Code SDK — single-file CLIs in Node.js, Python, Go, Rust that use direc 114 Claude Code, Codex, OpenCode 17 3,023 tok
OnlyTerp/prompt-cache-skills Drop-in prompt-caching fixes for the LLM agent harness you use. Point your AI coding agent 114 Codex, OpenCode 1 1,440 tok
aryaniyaps/lamina lamina.dev Headless product design for AI coding agents, backed by a transactional product graph | De 114 Codex, OpenCode 1 100 tok
longbkit/clisbot Agentic Coding CLI & chat bot 114 Claude Code, Codex, OpenCode 4 4,598 tok
jaychempan/coding-with-beat codebeat.top 🎵 Bring music to the AI terminal · Build a coding-focused smart DJ · A new way to listen 114 Claude Code, Codex, OpenCode 2 468 tok
DataHaskell/sabela A reactive notebook for Haskell 114 Claude Code, Codex, OpenCode 2 3,394 tok
holon-run/uxc uxc.holon.run A unified CLI for discovering and invoking tools across OpenAPI, MCP, GraphQL, gRPC, and J 114 Codex, OpenCode 1 891 tok
brenoepics/vitepress-carbon carbon.breno.tech Streamlined Theme for VitePress 114 Codex, OpenCode 1 2,042 tok
alltuner/factoryfloor factory-floor.com AI-powered macOS development workspace. Git worktrees, Claude Code sessions, and dev serve 114 Claude Code, Codex, OpenCode 2 2,581 tok
sernote/audit-prompt-caching 114 Codex, OpenCode 1 625 tok
felipelobomotta-blip/book-genesis-v4 An open-source writing runner that turns an idea into a manuscript, preserves the work, an 114 Codex, OpenCode 1 993 tok
prime-radiant-inc/superpowers-evals Behavioral eval lab (Quorum) for the superpowers project that drives real coding-agent CLI 114 Claude Code, Codex, OpenCode 2 4,604 tok
LuciusChen/clutch Interactive Emacs database client for MySQL, PostgreSQL, SQLite, MongoDB, Redis, and JDBC. 114 Codex, OpenCode 1 7,380 tok
jacob-bd/the-ai-counsel The AI Counsel — Collective AI Intelligence through multi-model deliberation and persona-d 114 Claude Code, Codex, OpenCode 2 6,203 tok
renmengwen/MuseDock MuseDock is a local-first AI short-video creation and editing workbench. Enter a topic, pa 114 Claude Code, Codex, OpenCode 2 1,476 tok
leehack/mcp_dart Dart implementation of MCP SDK 114 Codex, OpenCode 1 1,196 tok
moira-mcp/moira Agent Workflow Engine for AI agents over MCP — per-step directives, completion conditions, 114 Claude Code, Codex, OpenCode 2 3,718 tok
andry-lebedev/neobank-primitives 113 Codex, OpenCode 1 759 tok
bladeofgod/flutter-ai-harness An AI-native engineering harness for production Flutter and hybrid mobile app repositorie 113 Claude Code, Codex, OpenCode 55 6,359 tok
chaitin/chaitin-cli Chaitin CLI for products 113 Codex, OpenCode 1 748 tok
harnessworks/harness-starter-kit harnessworks.github.io 🐴 Prompt-first harness engineering for safer AI coding agent workflows. 113 Codex, OpenCode 1 2,052 tok
Peiiii/skild skild.sh The npm for Agent Skills — Discover, install, manage, and publish AI Agent Skills with eas 113 Codex, OpenCode 1 1,625 tok
shinonome123/openqqwaifu openqqwaifu is a standalone QQ Waifu console and runtime. It consolidates character cards, 113 Claude Code, Codex, OpenCode 2 3,064 tok
fuwasegu/aegis DAG-based Deterministic Context Compiler for AI Coding Agents 113 Claude Code, Codex, OpenCode 6 5,151 tok
lfaoro/ssm A fast, keyboard-driven TUI that makes your existing ~/.ssh/config delightful to use at fl 113 Codex, OpenCode 1 1,989 tok
takeshy/obsidian-gemini-helper AI chat, workflow automation, semantic search (RAG), LLM Wiki (OKF) powered by Google Gem 113 Claude Code, Codex, OpenCode 6 4,084 tok
spences10/sveltest sveltest.dev Comprehensive Svelte 5 testing examples and patterns using Vitest Browser Mode, Playwright 113 Claude Code, Codex, Cursor, OpenCode 4 4,106 tok
myunwang/LLMPET 🐙 A desktop pet watching Claude Code: changes expressions with agent status, displays mes 113 Codex 1
felinics/Autofish An AI Agent tool to automate Android devices reliably 113 Codex, OpenCode 1 684 tok
browsing-skills/browsing-skills Open-source registry of browser-automation skills for AI agents 113 Claude Code, Codex, OpenCode 2 2,833 tok
liberusoftware/real-estate-laravel liberusoftware.com Real Estate / Estate Agent, solution for your Property Agency. Application written in Lara 113 Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode 14 33,626 tok
Prism-Shadow/agenthub One interface for 1,000+ LLMs, with zero-code switching and built-in observability. (GPT-6 113 Claude Code, Codex, GitHub Copilot, OpenCode 3 1,349 tok
joungminsung/OpenDocuments joungminsung.github.io Self-hosted RAG platform for AI document search across GitHub, Notion, Google Drive, local 113 Codex, OpenCode 1 3,109 tok
wez/wiff wezfurlong.org sniff out the wiff in your diff, from the comfort of your terminal. wiff is a terminal-cen 113 Codex, OpenCode 1 568 tok
gethouston/houston gethouston.ai Open source platform for AI-native products. Pre-built AI agents with real tools and 1000+ 113 Claude Code, Codex, OpenCode 2 3,498 tok
majiayu000/litellm-rs A high-performance AI Gateway written in Rust — call 100+ LLM APIs using OpenAI format 113 Claude Code, Codex, OpenCode 12 3,524 tok
ossianhempel/things3-cli ossianhempel.github.io CLI for Things 3, implemented in Go 113 Claude Code, Codex, OpenCode 3 888 tok
Pandlagon/IELTS-Studio An IELTS English mock exam website that uses AI to convert PDF or Word exam papers into in 113 Claude Code, Codex, OpenCode 2 3,220 tok
unknowlei/minimax-h3-opencode-skills OpenCode skill suite for MiniMax H3 directing, routing, multishot planning, prompt generat 113 Codex, OpenCode 1 530 tok