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 |