How real projects configure their agents

43,547 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
OpenYSM/YSMParser ysm.rip A Parser to recover Yes-Steve-Model Encrypted Binaries. 575 Codex, OpenCode 1 1,345 tok
run-llama/ParseBench arxiv.org ParseBench - A Document Parsing Benchmark for AI Agents 575 Claude Code 1
zosmaai/pi-llm-wiki zosmaai.github.io Self-maintaining, Obsidian-compatible knowledge base for pi — turn raw sources into an int 575 Codex, OpenCode 1 594 tok
warpdotdev/common-skills 575 Claude Code, Codex 27
pdsuwwz/chatgpt-vue3-light-mvp botkit.likemashang.com 💭 A Web-based MVP prototype template for a customizable Chat Bot single-turn conversation 574 Claude Code, Codex, OpenCode 11 357 tok
meodai/skill.color-expert Agent skill for color science expertise. Many references covering color spaces, accessibil 574 Claude Code 1 379 tok
minhnv0807/ai-business-skills opa.business 138 bilingual AI marketing skills (69 VN + 69 Global) for Claude Code, OpenCode, Codex, VS 574 Claude Code, Codex, OpenCode 2 6,002 tok
harbor-framework/terminal-bench-science terminal-bench-science.ai Terminal-Bench-Science: Evaluating AI agents on research workflows across scientific domai 574 Claude Code, Codex, OpenCode 5 13,338 tok
ZubeidHendricks/youtube-mcp-server zubeidhendricks.github.io MCP Server for YouTube API, enabling video management, Shorts creation, and advanced analy 573 Claude Code 1 1,066 tok
different-ai/opencode-browser OpenCode plugin to automate Chrome. Inspired by Claude in Chrome. 573 Codex, OpenCode 2 427 tok
obra/the-elements-of-style William Strunk Jr.'s Elements of Style (1918) in markdown format for AI agents 573 Gemini CLI 1 21 tok
mnemon-dev/mnemon LLM-supervised persistent memory for AI agents — graph-based recall, cross-session knowled 573 Claude Code, Codex, OpenCode 2 723 tok
Enderfga/claw-orchestrator Run Claude Code, Codex, Antigravity, Cursor Agent and OpenCode as one runtime — persistent 572 Claude Code, Codex 1 3,358 tok
JKorf/CryptoExchange.Net cryptoexchange.jkorf.dev A C# .netstandard base library used for implementing cryptocurrency exchange API's. 571 Codex, GitHub Copilot, OpenCode 2 3,196 tok
ZimoLiao/scholaraio zimoliao.github.io Scholar All-In-One: A research infrastructure for AI agents 571 Claude Code, Codex, GitHub Copilot, Cursor, OpenCode 51 2,598 tok
green-dalii/obsidian-llm-wiki llmwiki.greenerai.top Karpathy's LLM Wiki implementation plugin for Obsidian - turns notes and PDFs into a linke 571 Claude Code, Codex, OpenCode 2 7,934 tok
matiasbattocchia/open-bsp-api web.openbsp.dev Open-source WhatsApp + Instagram Business platform 570 Claude Code 3 1,481 tok
smallnest/autoresearch autodevelop: autoresearch for software development 570 Claude Code, Codex, OpenCode 2 3,439 tok
pyuvm/pyuvm The UVM written in Python 570 Claude Code, Codex 1
xiaolai/vmark vmark.app An AI friendly markdown editor. 570 Claude Code, Codex, OpenCode 39 11,767 tok
level09/enferno enferno.io Modern Flask framework with zero-config frontend (Vue 3 + Vuetify 3), production-ready 569 Claude Code, Codex, OpenCode 2 6,870 tok
T8mars/T8-penguin-canvas 569 Codex, OpenCode 2 1,881 tok
OpenStrap/edge openstrap.site App which allows you to use your health devices beyond subscriptions. Supports Workout Tra 569 Claude Code, Codex, OpenCode 2 4,019 tok
Azure/azure-dev aka.ms A developer CLI for working with Azure resources to build and deploy AI applications. Comm 568 Claude Code, Codex, GitHub Copilot, OpenCode 18 1,875 tok
qntx/ovo Agent behavior that compiles 568 Codex, OpenCode 1 189 tok
unifapi-agent/agents unifapi.com Open-source marketing agents for Claude, ChatGPT, Codex, OpenClaw & Hermes. One plugin: SE 567 Codex, OpenCode 1 2,523 tok
johnpapa/vscode-angular-snippets Angular Snippets for VS Code 567 Codex, GitHub Copilot, OpenCode 2 2,225 tok
neiltron/apple-health-mcp Local-first Apple Health MCP server. Lets AI assistants answer questions about your sleep, 567 Claude Code, Codex, OpenCode 2 571 tok
joske/yserver A modern X11 server written from scratch in Rust. 567 Claude Code, Codex, OpenCode 2 501 tok
uppinote20/claude-dashboard claude-dashboard.uppinote.dev Comprehensive status line plugin for Claude Code with context usage, API rate limits, and 566 Claude Code 1 4,662 tok
vinilana/dotcontext 566 Claude Code, Codex, OpenCode 2 1,013 tok
wuxiran/cc-pane Multi-instance split-pane manager for Claude Code — a cross-platform desktop app built wit 566 Claude Code, Codex, OpenCode 29 24,785 tok
yhy0/CHYing-agent zc.tencent.com Tencent Cloud Hackathon - Intelligent Penetration Testing Challenge, First Edition Top 9 566 Claude Code 1
HoangNguyen0403/agent-skills-standard npmjs.com A collection of Agent Skills Standard and Best Practice for Programming Languages, Framewo 565 Claude Code, Codex, GitHub Copilot, OpenCode 4 2,162 tok
egeominotti/bunqueue bunqueue.dev ⚡ High-performance job queue for Bun. SQLite by default, PostgreSQL multi-broker when you 565 Claude Code, Codex, OpenCode 4 11,025 tok
NextAdminHQ/nextjs-admin-dashboard nextadmin.co AI-Native Next.js admin dashboard template and UI components that come with pre-built ele 565 Claude Code, Codex, OpenCode 2 990 tok
joinly-ai/joinly joinly.ai Make your meetings accessible to AI Agents 564 Claude Code 3 1,261 tok
lnikell/loopndroll Keep Codex running forever 564 Claude Code, Codex, OpenCode 6 535 tok
crossoverJie/SkillDeck crossoverjie.top Native macOS SwiftUI app for managing multiple AI code agent skills 564 Claude Code, Codex 1 1,986 tok
amanaiproduct/personal-os Framework for a local AI agent powered task management system 563 Claude Code, Codex, OpenCode 2 786 tok
Kamalnrf/claude-plugins claude-plugins.dev Lightweight registry to discover, install, and manage all public Claude plugins and agent 563 Claude Code 1 700 tok
can1357/pon Python 3.14, compiled to metal — JIT & AoT native compiler and runtime in Rust. Cranelift 563 Codex, OpenCode 1 489 tok
rtk-ai/icm Permanent memory for AI agents. Single binary, zero dependencies, MCP native. 562 Claude Code, Codex, GitHub Copilot, OpenCode 3 6,485 tok
Azure-Samples/aisearch-openai-rag-audio azure.microsoft.com A simple example implementation of the VoiceRAG pattern to power interactive voice generat 562 Codex, OpenCode 1 3,306 tok
criptogus/HermesOffice AI-native office suite (Docs, Sheets, Slides, PDF) where the Hermes Agent is the brain — o 561 Claude Code 1 627 tok
hatayama/unity-cli-loop Let AI Drive Unity, from Editor to Play Mode. 561 Claude Code, Codex, OpenCode 22 3,773 tok
ROCm/aiter rocm.github.io AI Tensor Engine for ROCm 561 Claude Code, GitHub Copilot 9 4,759 tok
miantiao-me/cloud-code Cloud Code (Cloudflare + OpenCode), running OpenCode on Cloudflare to build a dedicated cl 560 Codex, OpenCode 1 1,921 tok
defendend/Claude-ast-index-search Cli allows AST search, ~40-50% economy tokens. Claude/Codex/Cursor searches (suitable for 560 Claude Code 4 1,229 tok
jxnl/personal-monorepo-template 560 Codex, OpenCode 16 1,084 tok