22,145 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 |
|---|---|---|---|---|
| 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 |
| lyr1cs/rein Multi-source cross-validated memory MCP server for AI agents (Rust, jieba CJK, local-first | 10 | Codex, OpenCode | 1 | 17,034 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 |
| 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 |
| SawyerHan-AI/TideMind tidemind.ai A living second brain that connects everything you think with — your AI agents, your notes | 10 | Codex, OpenCode | 1 | 3,307 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 |
| unknowbug/qlens QLens — HDR image viewer (QuickView) + image manager with open tag database (qltag.db) + M | 10 | Codex, OpenCode | 1 | 987 tok |
| 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 |
| ZeroMadLife/sage-agent A local-first Personal AI Learning Companion that connects goals, personal knowledge, real | 10 | Codex, OpenCode | 1 | 1,056 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 |
| canoo/agent-nexus nexus.codelogiic.com Multi-model agentic orchestration framework — route tasks to cloud or local LLMs, manage p | 10 | Codex, OpenCode | 1 | 90 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 |
| 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 |
| joshrotenberg/tower-mcp docs.rs Tower-native Model Context Protocol (MCP) implementation | 10 | Codex, OpenCode | 1 | 402 tok |
| Aether-Grid/openticker openticker.com OpenTicker is a multi-crate Rust workspace for configurable spot-trading across equities a | 10 | Codex, OpenCode | 1 | 1,204 tok |
| aksika/abtars aksika.github.io Agent harness with persistent memory, skills, scheduled tasks, extended messaging connecti | 10 | Codex, OpenCode | 1 | 1,386 tok |
| sebastienrousseau/noyalib sebastienrousseau.github.io A YAML 1.2 parser and serialiser for Rust: zero unsafe, full serde integration, lossless C | 10 | Codex, OpenCode | 1 | 485 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 |
| profplum700/etsy-mcp-server | 10 | Claude Code, Codex, OpenCode | 2 | 354 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 |
| slok/gosimov Simple AI agent library in go (general usage but focused on infra/platform tooling automat | 10 | Codex, OpenCode | 1 | 28 tok |
| Kevin-Liu-01/Sigil-UI sigil-ui-web.vercel.app Opinionated design language + token-driven React components. 31 presets, 70+ components, o | 10 | Codex, OpenCode | 1 | 5,549 tok |
| kongsol-83/boardgame-studio An AI board game design studio for Cursor. Turn a one-line idea into BGG reference researc | 10 | Codex, Cursor, OpenCode | 9 | 3,092 tok |
| dangindev/antigravity-awesome-workspace-skill | 10 | Claude Code, Codex, Kiro, OpenCode | 66 | 387 tok |
| cosen1024/awesome-academic-skills A curated, machine-validated catalog of public Agent Skills for academic research workflow | 10 | Codex, OpenCode | 1 | 474 tok |
| yfge/agent-harness-skills Turn real software repos into agent-ready engineering environments with entrypoints, valid | 10 | Codex, Gemini CLI, OpenCode | 2 | 561 tok |
| xinghang-ee-cs/dev-runtime-skill AI coding assistant skills that structure the full development lifecycle into planning → i | 10 | Codex, OpenCode | 1 | 3,346 tok |
| 0xNyk/unmachined Anti-AI-slop agent skill: makes text read written and UI look made, not generated. Determi | 10 | Codex, OpenCode | 1 | 606 tok |
| stevenn/ctxlayer Context-sharing MCP Gateway on Cloudflare | 10 | Claude Code, Codex, OpenCode | 8 | 6,843 tok |
| devag7/linkedin-mcp LinkedIn for AI assistants (MCP) — profiles, people/job/company search, feed & messaging a | 10 | Codex, OpenCode | 1 | 582 tok |
| NotNull92/workforge-mcp WorkForge is a Windows MCP gateway that lets ChatGPT inspect files, resume Git work, make | 10 | Codex, OpenCode | 1 | 149 tok |
| Friz-zy/ai-capability-registry Curated AI Workflows, Skills & MCP servers for secure multi-agent development | 10 | Codex, OpenCode | 1 | 758 tok |
| yunfeizhu/TDesign-Vue-Next-Skill AI agent skill for TDesign Vue Next - comprehensive guidance for component usage, forms, t | 10 | Codex, OpenCode | 1 | 938 tok |
| zzxCoding/Flydb flydb.zzxcoding.dev A Schema versioning migration tool for JDBC databases: a zero-dependency Java 8 core, buil | 10 | Codex, OpenCode | 1 | 1,778 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 |
| henryiii/skills Some agent skills that are useful for coding. | 10 | Codex, OpenCode | 1 | 381 tok |
| alexsmirnov/obsidian-second-brain-mcp | 10 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 286 tok |
| exiao/pm-skills Skills for the whole product R&D process: strategy, UXR, PM, design, QA, launch. For Claud | 10 | Codex, OpenCode | 1 | 845 tok |
| lvcoi/solidJSkills A repo intended to be an mcp server for SolidJS Agentic Skills | 10 | Codex, Gemini CLI, OpenCode | 2 | 534 tok |
| sinch/skills sinch.com AI agent skills for Sinch communication APIs. Get expert guidance on getting started, best | 10 | Claude Code, Codex, OpenCode | 2 | 2,639 tok |
| CometWorks/skills Skill library for Space Engineers plugin, mod and in-game script development. Usable with | 10 | Codex, GitHub Copilot, OpenCode | 2 | 218 tok |
| maojiebc/majia-chatcut-koubo clawhub.ai ChatCut voiceover · Practical production edition｜v1.6.0 Reliable one-sentence editing and | 10 | Codex, OpenCode | 1 | 524 tok |
| a275618631/codex-antigravity-collaboration a275618631.github.io Reference architecture and working case study for Codex × Antigravity agent-runtime collab | 10 | Codex, OpenCode | 1 | 216 tok |
| grimoire-rs/grimoire grimoire.rs Package manager for AI-agent config. grim installs, updates, and publishes skills, rules, | 10 | Claude Code, Codex, OpenCode | 9 | 4,196 tok |
| 3aKHP/prts-mcp MCP Server for Arknights PRTS Wiki and local game data | 10 | Claude Code, Codex, OpenCode | 2 | 7,121 tok |