45,030 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 agents8,564Claude Code6,906Git and workflow3,633Data and AI3,578Backend and APIs3,558Languages3,494Planning3,322Code review2,906Testing2,695DevOps and cloud2,496Writing and docs2,489Memory and context2,375Research2,320Frontend2,312Security2,181Project management1,980
All Claude Code32,552 Codex24,920 OpenCode23,840 GitHub Copilot3,723 Gemini CLI2,039 Cursor1,771 Windsurf202 Kiro117
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| cerbos/skills cerbos.dev Agent skills for Cerbos, the authorization management platform. Enforce fine-grained, cont | 5 | Codex, Gemini CLI, OpenCode | 2 | 1,520 tok |
| aakashg/pm-github-workflow-repo Practice repo for PMs: learn Git/GitHub for your AI artifacts (skills, CLAUDE.md, evals, a | 5 | Claude Code | 1 | 380 tok |
| staticaland/skills Ceremonial grade agent skills 🫖 | 5 | Claude Code, Codex, OpenCode | 7 | 949 tok |
| oscal-compass/agentic-agile-authoring oscal-compass.dev Compliance authoring for OSCAL artifacts based on MCP Server and GenAI agentic solution wi | 5 | Claude Code | 1 | 1,647 tok |
| specy-ai/skills specy.ai Domain-Driven Design Spec artefacts | 5 | Claude Code | 1 | 2,426 tok |
| howells/skills | 5 | Codex, OpenCode | 1 | 161 tok |
| franciscorizzo/GxObjGen-install | 5 | Claude Code | 2 | 1,361 tok |
| xwiki/xwiki-dev-llm Shared LLM resources for developers | 5 | Claude Code | 1 | 2,939 tok |
| z4ppy/playlab42 z4ppy.github.io Laboratoire ouvert pour comprendre l’IA et coder avec elle. | 5 | Claude Code, Codex, GitHub Copilot, OpenCode | 19 | 4,811 tok |
| X1AOX1A/Skills | 5 | Claude Code | 1 | 6 tok |
| agent-anatomy/claude agent-anatomy.github.io Anatomy of the .claude/ folder Claude Code configuration reference | 5 | Claude Code | 2 | 233 tok |
| tugrulguner/summonpot summonpot.modepot.io A contract-first Python framework for modernizing APIs for AI through exact application be | 5 | Claude Code, Codex, OpenCode | 4 | 918 tok |
| stratalab/strata-core In-memory database built for agents | 5 | Claude Code | 1 | 3,431 tok |
| dvcrn/tripit-js CLI and library for TripIt | 5 | Claude Code, Codex, OpenCode | 2 | 938 tok |
| accordproject/concerto-rust Implementation of Concerto runtime in Rust | 5 | Codex, OpenCode | 1 | 279 tok |
| cantian-ai/agent-skill | 5 | Codex, OpenCode | 1 | 1,950 tok |
| hanthor/gnome-gui-spec | 5 | Codex, OpenCode | 1 | 122 tok |
| Eklavya-San/CTQ-extraction eklavya-san.github.io AI agent skill for extracting Critical-To-Quality (CTQ) parameters, GD&T feature control f | 5 | Claude Code, Cursor, Gemini CLI | 3 | 231 tok |
| salehabbaas/resume-builder An advanced AI-powered resume builder skill for Claude (Cowork / Claude Code). Paste a job | 5 | Codex, OpenCode | 1 | 489 tok |
| mercato-supply-chain/mercato-dapp mercatocapital.xyz MERCATO is a supply chain finance application: it helps small and medium businesses (we us | 5 | Claude Code, Codex, OpenCode | 6 | 4,201 tok |
| vantasnerdan/substrate-framework Claim-governed, agentic workflow for substrate physics framework | 5 | Codex, OpenCode | 6 | 3,956 tok |
| marmot-protocol/whitenoise-linux committish.app Whitenoise linux. Please file issues and PRs on ngit | 5 | Claude Code, Codex, OpenCode | 4 | 7,156 tok |
| RedHatResearch/aibom-security AI BOM Security | 5 | Claude Code, Codex, OpenCode | 2 | 3,161 tok |
| hanzixuan58521/zixuan-agent-constitution A personal AI agent constitution combining Occam's razor, first principles, beginning with | 5 | Codex, OpenCode | 1 | 3,941 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 |
| TMHSDigital/CFX-Developer-Tools tmhsdigital.github.io AI-powered Cursor IDE plugin for FiveM and RedM resource development. 9 skills, 6 rules, 6 | 5 | Claude Code, Codex, Cursor, OpenCode | 3 | 6,431 tok |
| Gkrumbach07/openshell-dashboard Standalone upstream web admin UI for OpenShell | 5 | Claude Code, Codex, OpenCode | 7 | 1,415 tok |
| jherrma/calcard A CalDav and CardDav Server | 5 | Claude Code, Gemini CLI | 2 | 6,434 tok |
| Joker1796/wh-rules.ru wh-rules.ru WH Rules — bilingual EN/RU Warhammer 40k 11th ed rules reference, army list builder and of | 5 | Claude Code | 11 | 2,376 tok |
| opendatahub-io/rhaii-cluster-validation | 5 | Claude Code | 1 | 1,904 tok |
| minsu-kang/make-custom-app-skill AI Plugin for working with Make custom apps in Claude Code and Cursor | 5 | Claude Code | 2 | 2,927 tok |
| Lolaplex/agents-memory pypi.org Local markdown memory & cross-agent context engine for coding agents (MCP). | 5 | Claude Code, Codex, OpenCode | 2 | 1,011 tok |
| RazorEdge-wyh/spare-me A Skill that makes AI grovel and apologize first when angry, then write the reason for the | 5 | Claude Code, Codex, OpenCode | 2 | 646 tok |
| impactbrussels/FounderOS impact.brussels The open operating system for first-time founders. Proof before hype. 22 AI skills across | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 2,085 tok |
| muhammaddadu/outlook-cli | 5 | Codex, OpenCode | 1 | 2,473 tok |
| tszaks/ghub MCP server and JSON CLI for Gmail, Drive, Sheets, Docs and Calendar across multiple Google | 5 | Codex, OpenCode | 1 | 653 tok |
| airry12/verilog-mcp-server Verilog/SystemVerilog RTL semantic analysis MCP Server — dual tree-sitter + pyslang eng | 5 | Codex, OpenCode | 1 | 3,358 tok |
| testrelic-ai/testrelic-mcp-server testrelic.ai Official MCP server support for TestRelic AI - Build, Plan, Debug, Analyze with AI native | 5 | Claude Code, Cursor | 2 | 3,032 tok |
| SuperWangYuan/toutiaohao-mcp-server EN: An MCP server and HTTP API powered by Go and go-rod for automated Toutiao (ByteDance) | 5 | Codex, OpenCode | 1 | 6,482 tok |
| Leonezz/obsidian-mcp-server | 5 | Claude Code | 1 | 2,183 tok |
| xilu0/awesome-claude-code claude-code-academy-gamma.vercel.app A repo that collects awsome learning materials/tools for Calude Code developers, aiming at | 5 | Claude Code, Gemini CLI | 3 | 1,125 tok |
| hamzaMissewi/agent-skills | 5 | Claude Code, Codex, Gemini CLI, OpenCode | 11 | 1,942 tok |
| eristoddle/agent-skills | 5 | Claude Code | 1 | 105 tok |
| mitodl/agent-kit Team toolkit for AI agent utilities: skills, custom agents, MCP helpers, and configuration | 5 | Codex, OpenCode | 1 | 3,068 tok |
| cressie176/cressie176-claude-marketplace Personal Claude Code plugin marketplace | 5 | Claude Code | 1 | 1,077 tok |
| henkas/orderfood npmjs.com MCP server for AI-driven food delivery — search restaurants and manage orders on Uber Eats | 5 | Claude Code, Codex, OpenCode | 2 | 1,534 tok |
| Addono/gh-attach Upload images to GitHub issues, PRs, and comments — from the CLI or via MCP. | 5 | Claude Code, Codex, OpenCode | 5 | 312 tok |
| NSF-Simons-CosmicAI-Institute/manna manna.readthedocs.io MCP Architecture for NOIRLab, NRAO, and additional Archives | 5 | Claude Code | 1 | 4,302 tok |
| Lilbonner/clo3d-mcp An MCP server that lets Claude (or any MCP host) drive CLO3D for AI-assisted garment desig | 5 | Claude Code | 1 | — |
| 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 |