31,984 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 |
|---|---|---|---|---|
| spxrogers/agentsync agentsync.cc Sync AI coding-agent configs (Claude Code, OpenCode, Codex, and more) from one canonical, | 10 | Claude Code, Codex, OpenCode | 3 | 12,439 tok |
| tidymodels/skills skills.tidymodels.org Claude Code Skills for Tidymodels | 10 | Claude Code | 2 | — |
| Rul1an/assay getassay.dev Open evidence profile for MCP tool actions. Enforce configured tool-call policies and reco | 10 | Claude Code, Codex, OpenCode | 3 | 7,506 tok |
| Lancetnik/slop-writer Claude Code skill that scrapes a Telegram channel into SQLite, answers analytics questions | 10 | Claude Code | 3 | 2,963 tok |
| agentic-lineage/lineage agenticlineage.vercel.app Package and share AI agent workflows, skills, agents, and policies across Claude Code, Cod | 10 | Claude Code, Codex, OpenCode | 5 | 742 tok |
| e-t-y-b/etyb-skills etyb.ai ETYB — your AI engineering team as one open-source skill (/etyb). 14 specialists, 9 always | 10 | Claude Code, Codex, OpenCode | 2 | 966 tok |
| itallstartedwithaidea/MiniAgent googleadsagent.ai The Cowork Agent for Everything — trainable advertising AI + 14 platform MCP servers + age | 10 | Claude Code | 1 | 438 tok |
| Postpartum-genushyacinthus29/dotnet-skills Teach AI agents modern .NET skills for ASP.NET Core, EF, Blazor, MAUI, and more with a gro | 10 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 9,378 tok |
| edholofy/dojo.md dojo.md University for AI agents. 92 courses, 4400+ scenarios, any model via OpenRouter. Auto-trai | 10 | Claude Code | 11 | 3,168 tok |
| footprintjs/hcifootprint footprintjs.github.io Turn a web app's interaction surface into a typed, traversable skill graph an LLM can plan | 10 | Claude Code | 1 | 3,772 tok |
| redhuntlabs/wizard Build AI spells for what you do - a meta-builder that turns recurring tasks into reusable | 10 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,340 tok |
| zander-zyx/claude-mini-hud zdking.com A lighter alternative to claude-hud's core features, limited to 7 lines. Built-in usage qu | 10 | Claude Code, Codex, OpenCode | 2 | 2,695 tok |
| EvilFreelancer/secs SECS (SECurity aSsistant) turns an AI coding agent (Claude Code, Cursor, Codex) into an au | 10 | Claude Code, Codex, OpenCode | 2 | 4,071 tok |
| freibergergarcia/phone-a-friend CLI relay for Claude Code, Codex, and OpenCode. Delegate to Antigravity, Claude, Codex, Ge | 10 | Claude Code, Codex, OpenCode | 2 | 12,165 tok |
| Dometrain/getting-started-claude-code dometrain.com Source code for the "Getting Started: Claude Code" course | 10 | Claude Code | 1 | — |
| NullSpace-BitCradle/ats-resume-agent AI agent for Claude Code that tailors resumes to job descriptions with ATS optimization an | 10 | Claude Code | 1 | 465 tok |
| devopam/MCPg devopam.github.io Postgres MCP Server | 10 | Claude Code | 1 | 1,295 tok |
| tosin2013/documcp documcp.dev DocuMCP is an intelligent Model Context Protocol (MCP) server that revolutionizes document | 10 | Claude Code, GitHub Copilot | 6 | 1,894 tok |
| coinpaprika/claude-marketplace api.coinpaprika.com Official Claude Code plugins for CoinPaprika & DexPaprika - free crypto market data & DeFi | 10 | Claude Code | 1 | — |
| cyanheads/secedgar-mcp-server npmjs.com Query SEC EDGAR filings, XBRL financials, and company data through MCP. STDIO & Streamable | 10 | Claude Code, Codex, OpenCode | 2 | 27,696 tok |
| memenow/persona-agent A Python-based API server for creating AI persona agents using Google A2A protocol and Mod | 10 | Claude Code, Codex, OpenCode | 2 | 4,170 tok |
| nyo16/conduit_mcp Elixir implementation of the Model Context Protocol (MCP) — build servers to expose tools, | 10 | Claude Code | 1 | 2,352 tok |
| hannsxpeter/scriveno Spec-driven creative writing, publishing, and translation pipeline for AI coding agents. F | 10 | Claude Code, Codex, OpenCode | 2 | 8,372 tok |
| Y0lan/laws-of-software-engineering 56 laws of software engineering as an installable Claude Code skill, paraphrased from laws | 10 | Claude Code | 1 | 1,698 tok |
| jamiew/spotify-mcp jamiew.github.io Modern MCP to connect AI agents like Claude to Spotify. This fork is token-efficient, impl | 10 | Claude Code | 2 | 1,951 tok |
| linxule/mineru-mcp | 10 | Claude Code | 2 | 1,532 tok |
| jamditis/mooc-starter-kit mooc.amditis.tech Starter repo for Advanced Prompt Engineering for Journalists — a Knight Center MOOC on AI | 10 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,497 tok |
| Aureliolo/synthorg synthorg.io SynthOrg is a synthetic organisation: it staffs the roles, splits the work into jobs that | 10 | Claude Code, Codex, OpenCode | 64 | 28,656 tok |
| kevinkaylie/AgentNexus Decentralized communication infrastructure for AI Agents — DID identity, federated discove | 10 | Claude Code, Codex, OpenCode | 4 | 5,157 tok |
| lhpaul/ai-dev-framework-template A tool-agnostic AI-assisted development framework template. Structured workflow (Spec → Pl | 10 | Claude Code, Codex, Gemini CLI, OpenCode | 4 | 4,854 tok |
| Diversus23/1c-feature-dev softonit.ru AI workflow for 1C development. Analysis, architecture, coding, and review, with installat | 10 | Claude Code | 1 | 1,732 tok |
| profplum700/etsy-mcp-server | 10 | Claude Code, Codex, OpenCode | 2 | 354 tok |
| samber/awesome-ai-native samber.github.io A curated list of AI-native products: apps and tools where the LLM is the product itself, | 10 | Claude Code | 1 | 913 tok |
| hyhmrright/market-sages 13 legendary investors analyzing stocks for you — Buffett to Taleb. Real-time data via web | 10 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 1,689 tok |
| brandonwie/codex-hud brandonwie.github.io Single-line local context HUD for Codex CLI sessions. | 10 | Claude Code, Codex, OpenCode | 2 | 46 tok |
| ariadoss/superskills Curated AI skills pack for Claude Code & OpenCode — TDD, debugging, security, spec workflo | 10 | Claude Code | 1 | 1,423 tok |
| Szesnasty/Jarvis Local-first knowledge system that turns notes, files, and AI chats into durable memory. | 10 | Claude Code | 13 | 5,025 tok |
| karthikrshet/ClaudeMark Open-source, local-first AI watermark & provenance forensics platform — statistical detect | 10 | Claude Code, Codex | 1 | — |
| dangindev/antigravity-awesome-workspace-skill | 10 | Claude Code, Codex, Kiro, OpenCode | 66 | 387 tok |
| stevenn/ctxlayer Context-sharing MCP Gateway on Cloudflare | 10 | Claude Code, Codex, OpenCode | 8 | 6,843 tok |
| ZMR0zhangmouren/DOT.NET-Code-Security-Audit-Platform Self-hosted white-box .NET security audit platform. Loads 38 audit Skills via OpenAI Agent | 10 | Claude Code | 4 | 10,067 tok |
| andrewii23/ii23-skills Agent Skills for Claude Code — video understanding (grid-packed frames + transcript, ~7x c | 10 | Claude Code | 1 | 400 tok |
| uk-agents/uk-legal-plugins bouch.dev UK jurisdiction legal plugins for Claude Code and Cowork — employment, commercial, corpora | 10 | Claude Code | 1 | 2,219 tok |
| hjsh200219/korea-public-data-mcp A Korean public data MCP (Model Context Protocol) server. Integrates APIs from the Ministr | 10 | Claude Code, Codex, Cursor, OpenCode | 3 | 3,125 tok |
| fugle-dev/fugle-mcp-server | 10 | Claude Code | 1 | 595 tok |
| Legorobotdude/yt-analysis-mcp MCP server for YouTube video analysis using Gemini API | 10 | Claude Code | 1 | 741 tok |
| EgorKurito/apple-calendar-mcp | 10 | Claude Code | 1 | 890 tok |
| elgatosf/elgato-mcp-server A Model Context Protocol (MCP) server that provides automation capabilities with Elgato ap | 10 | Claude Code | 1 | 962 tok |
| nic01asFr/QgisStreamMCP QGIS Desktop as an MCP Server — Full GUI via noVNC, PyQGIS scripting, 1000+ Processing alg | 10 | Claude Code | 1 | 2,355 tok |
| RS-Nocsi/codex-cua-mcp MCP server wrapping Codex Computer Use — bring Codex Computer Use to any MCP-compatible ag | 10 | Claude Code | 1 | 928 tok |