How real projects configure their agents

23,196 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
iluvmanan/fastapi-boilerplate Enterprise grade FastAPI Boilerplate 3 Claude Code, Codex, OpenCode 2 12,319 tok
Seven128/project-tiny-context-harness npmjs.com Minimal project memory and validation harness for AI coding agents. 3 Codex, OpenCode 3 992 tok
nicholaswilde/mcp-server nicholaswilde.io 🤖 An MCP server that serves custom AGENTS.md files and bash scripts. 🖥️ 3 Codex, OpenCode 1 750 tok
agent-orc/runner agent-orchestrator.dev Run coding-agent CLIs — Claude Code, Codex, Copilot, Gemini — from .NET: hardened spawning 3 Claude Code, Codex, OpenCode 2 389 tok
daniel8824-del/claude-wiki-verbs 9-verb knowledge engine for Obsidian vaults — Karpathy LLM Wiki pattern. Works with Claude 3 Claude Code, Codex, Gemini CLI, OpenCode 3 1,069 tok
DantesPeak85/the-council Multi-model advisory board for Claude Code — get second opinions from Codex and Gemini 3 Claude Code, Codex, OpenCode 2 2,915 tok
taberoajorge/loopforge Desktop AI loop orchestrator that drives open source coding CLIs (Claude Code, Codex, Curs 3 Claude Code, Codex, GitHub Copilot, Cursor, OpenCode 15 2,917 tok
HuskyDanny/OnPoint Big idea first, then fewer words, then less code. One switch for 12+ AI coding agents — me 3 Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode 4 9,020 tok
ggoodman/mcp-server-go Golang implementation of the streaming MCP HTTP transport with sessions, auth and horizont 3 Codex, OpenCode 1 701 tok
Shaumik-Ashraf/mcp-fhir-patient-index A master patient index with a FHIR API, MCP server, and web UI on Ruby on Rails 8. 3 Claude Code, Codex 2 1,105 tok
feed-mob/fm-mcp-servers feedmob.com FeedMob MCP Servers 3 Codex, OpenCode 1 547 tok
GregoriSoria/billforward-mcp A Model Context Protocol (MCP) server for integrating Billforward's billing API with LLMs. 3 Claude Code, Codex, OpenCode 22 12 tok
ColdBox/coldbox-cli coldbox.org 💻 The official ColdBox CLI 3 Claude Code, Codex, OpenCode 24 3,351 tok
rjamestaylor/cursor-rules-converter Convert Cursor rules for use by multiple AI Coding Assistants with git-hook automation for 3 Claude Code, Codex, OpenCode 2 394 tok
ddebixx/frontend-template 3 Codex, OpenCode 1 535 tok
barrosohub/frontend-stack-blueprint Canonical frontend stack blueprint for AI coding agents: TypeScript, React, Vite, Vitest, 3 Claude Code, Codex, GitHub Copilot, Cursor, OpenCode 5 6,864 tok
SyntaxWay/agent-ready-repo 3 Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode 6 1,616 tok
gjfresno/IA-Cyborg-SDD IA y gestión de proyecto 3 Claude Code, Codex, Gemini CLI, OpenCode 3 822 tok
Qapla/qapla-api-skill AI agent knowledge pack for the Qapla' public REST API (v1.3) — shipments, raw orders, car 3 Codex, OpenCode 1 748 tok
kevglynn/ai-dev-playbook AI-native development methodology — rules, skills, and scripts for working with coding age 3 Claude Code, Codex, Cursor, OpenCode 11 2,209 tok
lvjiujitsu/lvjiujitsu Sistema LV Jiu Jitsu 3 Claude Code, Codex, OpenCode 11 13,695 tok
LeoKemp223/zserial-cli A command-line serial port tool for AI coding tools. It provides unified serial port enume 3 Claude Code, Codex, OpenCode 2 486 tok
Aryanacoder/superragskills The #1 skill you need before building any production grade RAG 3 Claude Code, Codex, OpenCode 2 280 tok
pcomans/caruso Caruso allows you to take plugins that contain skills, subagents or commands from Claude C 3 Claude Code, Codex, OpenCode 4 2,823 tok
onesimplecode/agent-engineering-standards This repo hands your AI coding agent a rulebook and your CI the checks that enforce it, ca 3 Codex, OpenCode 1 7,802 tok
Lucabiz/agentscribe One source of truth for your AI agent instructions — generate and validate AGENTS.md, CLAU 3 Claude Code, Codex, GitHub Copilot, OpenCode 3 1,819 tok
hly-AI/codingplan 3 Codex, Cursor, OpenCode 7 777 tok
tecton-ai/tecton-mcp This MCP (Model Context Protocol) server provides tools to interact with tecton. 3 Claude Code, Codex, OpenCode 2 3,949 tok
shijiew/back-to-basics-skills 3 Claude Code, Codex, OpenCode 2 100 tok
Bridge-UI/core Bridge UI is a component library for React and Vue with a shared foundation. 3 Codex, OpenCode 1 359 tok
dentiny/kon multi-agent system with kon characters 3 Codex, OpenCode 1 766 tok
heyAyushh/stacc stacc.fyi A collection of AI agent configurations for coding 3 Claude Code, Codex, OpenCode 2 1,931 tok
xianyu110/my-awesome-skills A curated collection of Claude AI skills covering content creation, image generation, auto 3 Claude Code, Codex 66
ofabiodev/stfu skills.sh 🦆 forces short, direct AI answers with no filler, context, recap, preamble, or full-file 3 Codex, OpenCode 1 149 tok
tommyvo/useful-prompts A collection of useful prompts to use for coding. 3 Claude Code, Codex, GitHub Copilot, OpenCode 2 4,898 tok
beettlle/pi-spine Orchestration spine for long-running pi development — pi-native batch orchestration with T 3 Claude Code, Codex, OpenCode 8 1,464 tok
ishandutta2007/Awesome-AI-Job-Hunting AI job application framework built on Claude Code 3 Claude Code, Codex, OpenCode 3 2,565 tok
janegilring/awesome-azure-landing-zones A library of AI Skills and Agents for the Microsoft Cloud Adoption Framework (CAF) and Azu 3 Codex, OpenCode 1 2,347 tok
BanibrataChatterjee/AwesomeSalesforceSkills Reusable Salesforce skills library for AI coding agents. 100+ skills across Admin, Dev, De 3 Claude Code, Codex, OpenCode 2 3,090 tok
nullorder/agenthub agenthub.nullorder.org Community Claude Code plugin marketplace 3 Codex, OpenCode 1 1,233 tok
oculus-samples/Unity-VirtualCameraPublisher A Sample Project for the Virtual Camera Publisher API in Unity 3 Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode 6 1,080 tok
redhat-vmeperf/agent-tasks-template AI/LLM Agent Tasks Template 3 Claude Code, Codex, OpenCode 2 334 tok
gpambrozio/ClaudeCodePlugins A curated marketplace of Claude Code plugins for various development workflows 3 Claude Code, Codex, OpenCode 3 2,331 tok
weteach-app/copilot Example of instructions and agents that can be used with GitHub Copilot 3 Claude Code, Codex, GitHub Copilot 14 15,227 tok
CraigWhite81/copilot-studio-skills Use the ROCKET framework skill to improve Copilot Studio agent instructions 3 Claude Code, Codex 1
S13G/engineering-standards-plugin Cross-domain software engineering standard principles for AI coding agents (Claude Code, C 3 Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode 5 3,971 tok
gautam-achieveai/ClaudePlugins Custom Claude Code plugins — skills, agents, commands, and MCP integrations for Azure DevO 3 Claude Code, Codex, OpenCode 2 2,100 tok
benigeri/braintrust-claude-plugin Claude Code plugin for managing Braintrust prompts 3 Codex, OpenCode 1 166 tok
hidetsugu-miya/claude-plugins 3 Claude Code, Codex, OpenCode 6 1,318 tok
jskswamy/claude-plugins A curated collection of Claude Code plugins focused on developer workflows, code generatio 3 Claude Code, Codex, OpenCode 3 2,178 tok