23,799 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 agents8,544Claude Code6,892Git and workflow3,622Data and AI3,580Backend and APIs3,558Languages3,492Planning3,321Code review2,907Testing2,690DevOps and cloud2,489Writing and docs2,484Memory and context2,374Research2,321Frontend2,311Security2,178Project management1,971
All Claude Code32,539 Codex24,879 OpenCode23,799 GitHub Copilot3,723 Gemini CLI2,040 Cursor1,772 Windsurf202 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| synmux/myriad wonderful stuff which may or may not be of use to anyone else | 3 | Claude Code, Codex, OpenCode | 2 | 1,497 tok |
| 2023Anita/clinical-ai-agent-skills Evidence-first AI agent rules for clinicians using Codex, Claude Code, Cursor, Copilot, an | 3 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 966 tok |
| atmosware/praxia-agents | 3 | Claude Code, Codex, OpenCode | 27 | 1,771 tok |
| ayimmam/PCIC pcic.tech Internal Management tool | 3 | Codex, GitHub Copilot, Cursor, OpenCode | 4 | 1,612 tok |
| omtodkar/librarian AI coding assistant skill for 7 platforms. Turn your project into a searchable knowledge b | 3 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 4,194 tok |
| nassimna/karpathy-guidelines Cross-agent Karpathy-inspired behavioral guidelines for Claude Code, Codex, Cursor, and Ge | 3 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,564 tok |
| lazysheep-z/apdr-product-design-runtime AI Product Design Runtime by Joker — from requirements to frontend code, powered by 5 MCP | 3 | Codex, OpenCode | 1 | 947 tok |
| vepo/contraponto blogs.commit-mestre.dev Self-hostable multi-author blog platform built with Quarkus, HTMX, and PostgreSQL. Per-use | 3 | Claude Code, Codex, Cursor, OpenCode | 22 | 3,706 tok |
| Brainy-Builds/ts-inspect-cli A read-only TypeScript semantic inspection CLI built on ts-morph | 3 | Claude Code, Codex, OpenCode | 2 | 1,488 tok |
| sykopad/initra initra.vercel.app AI-powered project bootstrapping platform that generates tailored IDE agent configuration | 3 | Claude Code, Codex, OpenCode | 5 | 11,009 tok |
| systemfsoftware/constitution systemfsoftware.com The engineering constitution for unbreakable software — functional core / imperative shell | 3 | Claude Code, Codex, OpenCode | 2 | 1,850 tok |
| hemp-dev/quietscope Defensive local security audit tool for macOS, Linux, and Windows. Zero telemetry, zero ne | 3 | Codex, OpenCode | 1 | 49 tok |
| mturac/skill-hunter Pre-execution layer that makes agents check for existing skills before building from scrat | 3 | Claude Code, Codex, OpenCode | 2 | 1,477 tok |
| sanzharal/filedropbot Self-hosted Telegram bot — bidirectional phone↔server file drop for AI agents | 3 | Codex, OpenCode | 1 | 572 tok |
| Enovatr-Labs/SpecRoute Open source framework for spec-driven agentic software engineering. PRDs, prompts, agents, | 3 | Claude Code, Codex, Gemini CLI, Kiro, OpenCode | 10 | 3,768 tok |
| dakimura/guff A blazing-fast golangci-lint compatible Go linter | 3 | Codex, OpenCode | 1 | 200 tok |
| Coderrob/backstage-mcp-server A production-ready, enterprise-grade Model Context Protocol (MCP) server that exposes the | 3 | Codex, OpenCode | 1 | 348 tok |
| zhdenny/bar-assistant-mcp-server | 3 | Codex, OpenCode | 1 | 2,011 tok |
| yashodhank/whmcs-mcp-server | 3 | Claude Code, Codex, Cursor, OpenCode | 3 | 5,025 tok |
| PLAID-lib/plaid-mcp-server MCP server for converting datasets | 3 | Codex, OpenCode | 1 | 1,205 tok |
| print-yuhuan/QQ-MCP-Server | 3 | Claude Code, Codex, OpenCode | 2 | 2,952 tok |
| rediche/skills Simple, focused agent skills for planning, implementation flow, and QA. | 3 | Codex, OpenCode | 1 | 55 tok |
| igor-holt/openclaw-skills Production OpenClaw / ClawHub skills by Igor Holt (Genesis Conductor). Persistent state fo | 3 | Codex, OpenCode | 1 | 697 tok |
| lowspeclabs/Proxmox-Manager-Agent-Skill Opensource Agent Skills | 3 | Codex, OpenCode | 1 | 1,728 tok |
| lucsedirae/agent_skill_library A library of Claude skills | 3 | Codex, OpenCode | 1 | 178 tok |
| akshay5995/agent-skill-evals akshay5995.github.io Agent Skill Evals helps you test agent skills with Promptfoo. | 3 | Codex, OpenCode | 1 | 663 tok |
| kellykampen/agent-skills Reusable Claude Code agent skills — orchestration, code review, and workflow automation. | 3 | Codex, OpenCode | 1 | 293 tok |
| msobczyk-x/agent-skills Cross-agent coding skills for simplifying diffs, refactoring, pragmatic reviews, and plann | 3 | Codex, OpenCode | 1 | 966 tok |
| delacournz/agent-skills | 3 | Claude Code, Codex, OpenCode | 2 | 1,807 tok |
| sajeetharan/angular-agent-kit sajeetharan.github.io A collection of skills for AI coding agents working with Angular. Skills are packaged inst | 3 | Codex, OpenCode | 1 | 689 tok |
| fikrilal/engineering-agent-skills Portable Agent Skills for understanding, designing, and evolving software systems | 3 | Codex, OpenCode | 1 | 150 tok |
| marcos2872/agents-config Configuração pessoal do pi coding agent — agentes, skills e extensões | 3 | Codex, OpenCode | 1 | 1,686 tok |
| wanggang316/you-skill youskill.cc Keep Your Agent Skills Organized | 3 | Codex, OpenCode | 1 | 1,084 tok |
| frowang-ai/paper-agent-skills | 3 | Codex, OpenCode | 1 | 642 tok |
| asherzj/ashers-agent-skills Chinese research and development processes and composable engineering Skills for Coding Ag | 3 | Codex, OpenCode | 1 | 1,201 tok |
| curtisgalloway/public-skills Reusable agent skills for Claude Code and other agentic coding tools | 3 | Codex, OpenCode | 1 | 1,103 tok |
| devantler-tech/agent-plugins Tool-neutral agent-plugin marketplace — maintained and curated skills, MCP servers and age | 3 | Claude Code, Codex, OpenCode | 2 | 5,925 tok |
| ReScienceLab/TrySkills tryskills.sh One URL to try any agent skill — powered by Hermes Agent | 3 | Claude Code, Codex, OpenCode | 28 | 2,750 tok |
| Lzy599775/agent-auto-sci-skills lzy599775.github.io Auto-sci-research: End-to-end research writing, literature reviews, bibliometrics, GIS exp | 3 | Codex, GitHub Copilot, OpenCode | 2 | 2,013 tok |
| SidekicksStudio/marketing-agency-in-a-box Marketing Agency in a Box — 40+ AI agent skills for agencies and founders. Built on coreyh | 3 | Claude Code, Codex, OpenCode | 2 | 2,243 tok |
| vaquarkhan/Fullstack-development-agent-skills Full stack development agent skills are portable packages of instructions, scripts, and re | 3 | Claude Code, Codex, GitHub Copilot, Kiro, OpenCode | 14 | 1,067 tok |
| qte77/claude-code-plugins qte77.github.io A Claude Code plugin marketplace providing skills, rules, and scripts extracted from a pro | 3 | Claude Code, Codex, OpenCode | 3 | 906 tok |
| djimit/overheid-plugins Centrale catalogus van Claude Code plugins voor de Nederlandse overheid | 3 | Codex, OpenCode | 1 | 1,254 tok |
| SyntaxArc/archipy-plugin syntaxarc.github.io Cursor and Claude Code plugin: rules, skills, and commands for building apps with ArchiPy | 3 | Claude Code, Codex, OpenCode | 1 | 942 tok |
| lancewillett/ai-plugins Lance's AI skills, agents, commands, etc. By convention, works with Claude and Codex both. | 3 | Claude Code, Codex, OpenCode | 2 | 250 tok |
| AaronGoldsmith/mcp-printable MCP server for AI-driven 3D modeling and print validation (FDM-focused). Agent-agnostic; w | 3 | Claude Code, Codex, OpenCode | 6 | 3,519 tok |
| sandraschi/logic-analyzer-mcp FastMCP 3.2+ USB logic analyzer MCP with sigrok backend and fleet webapp | 3 | Codex, OpenCode | 1 | 496 tok |
| shenyuexin/mobile-e2e-mcp AI-first mobile E2E MCP orchestration | 3 | Claude Code, Codex, OpenCode | 8 | 2,053 tok |
| Leev1s/aa-mcp MCP server wrapping the Artificial Analysis public API. Enables AI agents to query LLM and | 3 | Codex, OpenCode | 1 | 571 tok |
| jonpspri/databeak jonpspri.github.io Model Context Protocol server providing 40+ specialized CSV data manipulation tools for AI | 3 | Claude Code, Codex, OpenCode | 3 | 1,609 tok |