3,700 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 agents8,442Claude Code6,875Data and AI3,584Git and workflow3,574Backend and APIs3,550Languages3,468Planning3,315Code review2,876Testing2,653DevOps and cloud2,462Writing and docs2,461Memory and context2,373Research2,315Frontend2,301Security2,167Project management1,944
All Claude Code32,436 Codex24,692 OpenCode23,614 GitHub Copilot3,700 Gemini CLI2,016 Cursor1,769 Windsurf202 Kiro113
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| craigcossairt/trellis The structure a project grows on: a free starter template for AI-assisted development. One | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 9 | 7,670 tok |
| rishapgandhi/python-skills AI-SDLC framework of skills, rules, and agent definitions that AI coding agents use to gen | 5 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode | 6 | 4,061 tok |
| SolidKeyAB/logan AI-powered log file viewer and analyzer — handles 14M+ lines with virtual scrolling, MCP a | 5 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 5,224 tok |
| AccountZero/elon-stack Five rules that stop a coding agent from optimizing things that should not exist. | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,357 tok |
| jgiox/goodvibes One command. Production-grade project. No config. | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, Kiro, OpenCode, Windsurf | 16 | 12,349 tok |
| williamisnotdefined/rubiks-cube-solver | 5 | Claude Code, Codex, GitHub Copilot | 28 | 40,799 tok |
| fokkerone/superspecs | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 28 | 1,504 tok |
| ystreibel/logseq-wiki Skill-based framework for building and maintaining a Logseq knowledge base using AI coding | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, Kiro, OpenCode | 44 | 5,599 tok |
| racecraft-lab/racecraft-plugins-public code.claude.com Open-source Claude Code plugins from Racecraft Lab | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 50 | 5,825 tok |
| DayronDLR/sap-enterprise-stack-plugin SAP Enterprise Agent Stack — Claude Code plugin (MIT) | 5 | GitHub Copilot | 26 | 60,280 tok |
| ArabAgentSkills/arab-payments-skill-atlas AI agent skill atlas for safer Arab/MENA payment and BNPL integrations. | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 803 tok |
| soenkenils/mailbox-mcp-server | 5 | Claude Code, GitHub Copilot | 8 | 1,476 tok |
| ArangoGutierrez/k8s-gpu-mcp-server NVIDIA GPU hardware introspection for Kubernetes clusters via MCP | 5 | GitHub Copilot | 1 | 1,896 tok |
| madebygps/obsidian-diary-mcp MCP server for Obsidian diary management with local AI (Ollama). Generates reflection prom | 5 | GitHub Copilot | 2 | 72 tok |
| navapbc/rebar Rebar can block work until an AI plan review passes, require signed completion verificatio | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 5 | 11,080 tok |
| petar-djukic/writing-skills Claude Code skills for rewriting AI-drafted prose to pass AI detectors: a measured three-s | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 9,303 tok |
| semanticash/cli semantica.sh Semantica makes AI code provenance, attribution, and semantic lineage visible across commi | 5 | GitHub Copilot | 1 | 309 tok |
| Lucabiz/agentscribe One source of truth for your AI agent instructions — generate and validate AGENTS.md, CLAU | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,819 tok |
| danchev/openmarkets docs.openmarkets.dev A Model Context Protocol (MCP) server for agentic retrieval of financial market data | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 8,910 tok |
| shihabshahrier/manim-coding-skill AI STEM animation skill — ManimGL for coding agents | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,024 tok |
| Stephen-studying/tech-route-maker Evidence-grounded editable technical route diagrams for research and engineering projects. | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,476 tok |
| illodev/taiga-mcp Full-featured MCP (Model Context Protocol) server for Taiga project management. Provides c | 5 | Claude Code, GitHub Copilot | 20 | 2,278 tok |
| maxgfr/conforme Sync your AI coding config from Claude Code, Codex, or any tool (rules, skills, agents, MC | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, Kiro, OpenCode | 9 | 44,667 tok |
| vodoon-cell/ai-website-cloner-template-all ai-website-cloner-template | 5 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 2,437 tok |
| ihuzaifashoukat/splicedeck A video editor an AI agent drives, running on your own machine. | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 7 | 2,541 tok |
| nikosavola/k-ruoka-mcp nikosavola.github.io MCP server for managing K-Plussa account's K-Ruoka (Finnish grocery) shopping cart from an | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 1,937 tok |
| StepFunctionLLC/mcp-server-cantera An MCP server wrapped around Cantera to facilitate use by an LLM | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,463 tok |
| Griboedow/PandocUltimateConverter mediawiki.org Pandoc converter extension for mediawiki which imports not only text, but also images | 5 | GitHub Copilot | 1 | 1,714 tok |
| klodr/mercury-invoicing-mcp Mercury Banking MCP server with full Invoicing API support. Read accounts/transactions and | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,618 tok |
| Priyans-hu/tokenmeter priyans-hu.github.io macOS menu bar app for Claude Code token usage visualization | 4 | Claude Code, GitHub Copilot, Cursor | 3 | 1,216 tok |
| zebbern/termstack An open-source agentic vibe coding platform that helps you build your own platform (Claude | 4 | Claude Code, GitHub Copilot | 12 | 15,538 tok |
| fabioc-aloha/Alex_Plug_In Transform GitHub Copilot into a sophisticated AI learning partner with meta-cognitive awar | 4 | Claude Code, Codex, GitHub Copilot | 200 | 137,391 tok |
| dryvist/ai-workflows Reusable AI agent workflows that run 24/7 — issue triage, code cleanup, multi-repo orchest | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 3,021 tok |
| mskhambaty/mumineen-coordination-whatsapp project-c94rt.vercel.app WhatsApp app for Mumineen coordination | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 6 | 1,667 tok |
| rapozoantonio/memorykit | 4 | GitHub Copilot | 3 | 2,650 tok |
| Byggarepop/TokenSaver Roslyn-powered warm start for AI coding agents: C# outlines with line ranges instead of wh | 4 | Claude Code, GitHub Copilot | 3 | 2,108 tok |
| animicaorg/all animica.org Animica — post-quantum (ML-DSA-65) proof-of-work Layer-1 blockchain by Alexander Lehman: P | 4 | Codex, GitHub Copilot, OpenCode | 2 | 4,954 tok |
| scottchronicity/ephemeris-mcp pypi.org Precision astronomical ephemeris for AI agents. An MCP server providing planetary position | 4 | Codex, GitHub Copilot, Cursor, OpenCode | 3 | 1,032 tok |
| evalor/Dida365MCP This is a Dida365/TickTick MCP server that Copilot spent 3 hours writing by itself! | 4 | GitHub Copilot | 1 | 2,628 tok |
| paarths-collab/quant-brain-mcp MCP Server for Stock Analysis, Backtesting, and Portfolio Intelligence | 4 | Claude Code, Codex, GitHub Copilot, Cursor | 3 | 1,142 tok |
| sandraschi/yahboom-mcp FastMCP 3.2 server plus Webapp for Yahboom Raspbot v2 robot car, ros2, raspberry pi | 4 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 7 | 1,209 tok |
| junyoung2015/pr-review-skill AI-powered PR review pipeline for Claude Code. Turns 30-45 min code reviews into ≤ 8 min s | 4 | GitHub Copilot | 3 | 522 tok |
| VersoXBT/claude-initial-setup 75 skills, 14 agents, 15 commands for Claude Code. Plug-and-play starter kit covering Type | 4 | Codex, GitHub Copilot, Cursor, OpenCode | 3 | 4,908 tok |
| lexCoder2/lxDIG-MCP Dynamic Intelligence Graph (DIG) MCP server for AI coding agents. Persistent code knowledg | 4 | Claude Code, GitHub Copilot | 5 | 1,103 tok |
| jenreh/appkit Reflex.dev components based on mantine.dev. Chat application and image generation UI. | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 29 | 1,610 tok |
| diomonogatari/stash-mcp MCP Server to connect with your Bitbucket Server (aka Stash) | 4 | GitHub Copilot | 1 | 600 tok |
| u9401066/medical-calc-mcp 🏥 MCP Server with 121 validated medical calculators for AI agents. DDD architecture, evid | 4 | GitHub Copilot | 1 | 1,770 tok |
| oguzhankir/fmtly fmtly.dev The high-performance, local-first data engine for developers and AI agents. Format, valida | 4 | Claude Code, GitHub Copilot, Cursor, Windsurf | 4 | 4,264 tok |
| asterixix/polish-academic-mcp Polskie bazy wiedzy (od naukowych po dane statystyczne, prawne, meteorologiczne, normy ora | 4 | Claude Code, Codex, GitHub Copilot, OpenCode | 11 | 18,482 tok |
| sidrat2612/routesmith pypi.org Host-aware model routing for coding agents. Python library + MCP server for Claude Code, C | 4 | GitHub Copilot | 1 | 634 tok |