24,815 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 agents8,505Claude Code6,886Git and workflow3,611Data and AI3,580Backend and APIs3,556Languages3,487Planning3,327Code review2,899Testing2,686Writing and docs2,480DevOps and cloud2,479Memory and context2,375Research2,323Frontend2,308Security2,172Project management1,965
All Claude Code32,517 Codex24,815 OpenCode23,733 GitHub Copilot3,719 Gemini CLI2,034 Cursor1,770 Windsurf202 Kiro114
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| compnew2006/browser-controller MCP server + Chrome extension that gives AI agents control of your real browser with exist | 9 | Codex, OpenCode | 1 | 900 tok |
| VelvetSP/web-retrieval-mcp MCP server for AI agents: high-fidelity web search (Exa) + tiered web fetch (Exa→browser→F | 9 | Codex, OpenCode | 1 | 196 tok |
| cacr92/WeReply Automatic WeChat chat reply assistant | 9 | Claude Code, Codex, Cursor, OpenCode | 50 | 4,270 tok |
| Darkflib/mcp-joplin | 9 | Codex, OpenCode | 1 | 1,942 tok |
| alanwtom/blackboard-mcp Local-first, read-only Blackboard MCP server. Reads the signed-in student's own Blackboard | 9 | Claude Code, Codex, OpenCode | 2 | 545 tok |
| yehezkieldio/firefly npmjs.com Automation release management CLI for semantic versioning, changelog generation, and GitHu | 9 | Codex, GitHub Copilot, OpenCode | 2 | 834 tok |
| bybren-llc/a-safe-pulse Enterprise-grade SAFe automation toolkit: AI-powered Agile Release Train (ART) planning, s | 9 | Claude Code, Codex, Gemini CLI, OpenCode | 19 | 6,997 tok |
| Bloodshed-Rain/TheMAGI themagi.gg Local-first AI coaching for Super Smash Bros. Melee from Slippi .slp replays. | 9 | Claude Code, Codex, OpenCode | 10 | 5,122 tok |
| Aledon8/OpenLeukemia openleukemia.com OpenLeukemia is a patient-centered platform for organizing leukemia-related medical data, | 9 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 1,924 tok |
| hotosm/ui ui.hotosm.org Shared UI components with HOT theming | 9 | Codex, OpenCode | 1 | 1,202 tok |
| sankichi92/LiveLog livelog.ku-unplugged.net A Ruby on Rails application for managing set lists within a music community | 9 | Codex, OpenCode | 1 | 657 tok |
| SamErde/TheCleaners day3bits.com PowerShell module to clean the loose ends from your Windows Servers. | 9 | Codex, GitHub Copilot, OpenCode | 2 | 1,470 tok |
| Ajiet-DevNation/dn-orbit devnation.club Anything and everything DevNation | 9 | Codex, Gemini CLI, OpenCode | 2 | 5,482 tok |
| depromeet/16th-team6-Android The Android repository for Team 16's Six-Ten Chicken 🍗💚 | 9 | Claude Code, Codex, Gemini CLI | 8 | 948 tok |
| kevinmcaleer/kevsrobots.com | 9 | Claude Code, Codex, Gemini CLI, OpenCode | 6 | 8,708 tok |
| mh-language/mhl-core-runtime mhl core runtime | 9 | Claude Code, Codex, OpenCode | 2 | 7,825 tok |
| sharat/cluster-cli sharat.github.io A fast, interactive terminal UI for monitoring Kubernetes cluster health in real-time | 9 | Claude Code, Codex, Gemini CLI, OpenCode | 6 | 2,158 tok |
| zoom/zoom-plugin Claude plugin for planning, building, and debugging Zoom integrations across REST APIs, SD | 8 | Codex, OpenCode | 1 | 436 tok |
| aplaceforallmystuff/mcp-pihole MCP server for Pi-hole v6 API - control DNS blocking from Claude Code | 8 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 357 tok |
| dryvist/ai-assistant-instructions A comprehensive, vendor-agnostic framework for consistent AI-assisted development workflow | 8 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,006 tok |
| EmZod/speak A fast CLI tool for Agents to convert their text output to speech using Chatterbox TTS on | 8 | Codex, OpenCode | 1 | 517 tok |
| ALCops/mcp-server nuget.org MCP server that brings ALCops AL code analyzers to AI assistants like Claude and Cursor | 8 | Claude Code, Codex, OpenCode | 3 | 5,814 tok |
| creatornader/atrib atrib.dev Verifiable agent actions. Every action becomes signed context for the next. Ed25519 signat | 8 | Claude Code, Codex, OpenCode | 4 | 20,384 tok |
| Andes-Software-Solutions/Andes.Extensions.AI nuget.org Composable Microsoft.Extensions.AI IChatClient middlewares for .NET — tool-call tracking w | 8 | Claude Code, Codex, GitHub Copilot, OpenCode | 4 | 5,338 tok |
| kevinslin/skillz | 8 | Claude Code, Codex, OpenCode | 2 | 2,549 tok |
| MisonL/Ling npmjs.com A Chinese AI Agent template toolkit for Gemini CLI, Antigravity, and Codex, providing one- | 8 | Claude Code, Codex, OpenCode | 69 | 1,373 tok |
| OutlineDriven/odin-reflector outlinedriven.github.io Codex CLI meta-reflection layer for Outline-Driven Development. Add-on for the Claude plug | 8 | Claude Code, Codex, OpenCode | 2 | 3,753 tok |
| edgar-durand/codeagent-mobile-clients codeagent-mobile.com Public source for CodeAgent Mobile clients: codeam-cli (npm), VS Code / Cursor / Windsurf | 8 | Claude Code, Codex, OpenCode | 4 | 14,012 tok |
| YuliiaKovalova/dotnet-template-mcp MCP server wrapping the .NET Template Engine for AI-driven template discovery, inspection, | 8 | Codex, GitHub Copilot, OpenCode | 2 | 1,696 tok |
| StringKe/std-agent One .stdai/ source of truth, fanned out to 22 AI coding tools: Claude Code, Codex, Cursor, | 8 | Claude Code, Codex, OpenCode | 3 | 806 tok |
| S3DFX-CYBER/Claude-Skills-Security A production-grade security triage skill for AI agents. | 8 | Codex, OpenCode | 1 | 1,494 tok |
| kangdacool/hwpx-editing-skill A validated ruleset + Python tool skill that enables LLM agents such as Claude Code and Co | 8 | Codex, OpenCode | 1 | 507 tok |
| Lombiq/Orchard-Core-Agent-Skills Reusable, agent-agnostic knowledge packs for Orchard Core development, focused on theming, | 8 | Codex, OpenCode | 1 | 301 tok |
| vunm-io/passdown Shift-handover workflow for AI coding agents — capture ideas into an inbox, dispatch tasks | 8 | Claude Code, Codex, OpenCode | 1 | 1,280 tok |
| kogakure/skills Collection of AI Agent Code skills | 8 | Claude Code, Codex, OpenCode | 2 | 519 tok |
| QuasarG/taste-bank tastebank.cloud An open-source frontend design manager. | 8 | Claude Code, Codex | 1 | — |
| AgenticFirst/Cerebro Cerebro is an open-source personal intelligence system for building AI experts, automating | 8 | Claude Code, Codex, OpenCode | 2 | 2,138 tok |
| d4rkNinja/infynon-cli cli.infynon.com Security-first Rust CLI for dependency risk scanning, API workflow testing, and shared cod | 8 | Claude Code, Codex, OpenCode | 2 | 997 tok |
| Luminaire1337/mtasa-docs-mcp MCP server for MTA:SA documentation with intelligent search and caching | 8 | Codex, OpenCode | 1 | 5,603 tok |
| ting-hong-shieh/polish-open-source-prose Agent Skill for Claude Code + Codex that edits open-source prose without losing facts or v | 8 | Codex, OpenCode | 1 | 128 tok |
| ivan-magda/uikit-expert-skill Agent skill for writing correct, modern UIKit code in Swift. Covers lifecycle, memory, con | 8 | Claude Code, Codex, OpenCode | 2 | 1,387 tok |
| agentverus/agentverus-scanner agentverus.ai Trust, but verify. Security scanner for AI agent skills. Detects prompt injection, data ex | 8 | Codex, OpenCode | 1 | 2,548 tok |
| sprngr/rubber-duck 🦆 Socratic assistant operating system for developers who want better-quality decisions, n | 8 | Claude Code, Codex, OpenCode | 2 | 1,517 tok |
| nbpadilha/nbp-skillforge Compose agent skills (SKILL.md / commands) from reusable bricks, with a drift-gate. | 8 | Codex, OpenCode | 1 | 524 tok |
| mooqii/OpenPanels Extensible side panels for AI agents. | 8 | Codex, OpenCode | 1 | 896 tok |
| ShaheerKhawaja/ProductionOS ProductionOS v1.0 — Claude Code plugin with 76 agents, 39 commands, and 12 hooks. Deploys | 8 | Claude Code, Codex, OpenCode | 2 | 5,986 tok |
| Lrinvl1203/world-class-web-design-os lrinvl1203.github.io 17 installable agent skills for distinctive web design: art direction, implementation, cri | 8 | Codex, OpenCode | 1 | 1,112 tok |
| gmickel/better-skill-builder Skill that teaches AI agents how to build Agent Skills for Claude Code, Codex, Amp, and Op | 8 | Claude Code, Codex, OpenCode | 2 | 360 tok |
| hariharapanigrahy/layerkit Evidence-first AI agent workbench for vendor API integrate & contract heal — real producti | 8 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,066 tok |
| SiliconEinstein/gaia-lkm-skills Agent skills for Gaia/LKM evidence-chain retrieval, evidence subgraph auditing, and schola | 8 | Codex, OpenCode | 1 | 174 tok |