24,785 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 agents8,489Claude Code6,881Git and workflow3,605Data and AI3,580Backend and APIs3,556Languages3,486Planning3,323Code review2,893Testing2,681Writing and docs2,477DevOps and cloud2,477Memory and context2,375Research2,318Frontend2,308Security2,170Project management1,960
All Claude Code32,505 Codex24,785 OpenCode23,702 GitHub Copilot3,719 Gemini CLI2,034 Cursor1,771 Windsurf202 Kiro114
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| BoxLogoDev/sapstack Universal SAP skills and agents for Claude Code — FI, CO, TR, MM, SD, PP, HCM, SFSF, ABAP, | 20 | Claude Code, Codex, GitHub Copilot, Kiro, OpenCode, Windsurf | 11 | 15,008 tok |
| natnew/awesome-ai-scientists natnew.github.io A curated collection of resources for building “AI Scientist” systems: AI that assists sci | 20 | Claude Code, Codex, OpenCode | 2 | 4,164 tok |
| lestrrat-ai/claude-code-plugins | 20 | Claude Code, Codex, OpenCode | 2 | 4,025 tok |
| viteinfinite/sync-skills Synchronize agent skill definitions between .claude and .codex directories | 20 | Claude Code, Codex, OpenCode | 12 | 277 tok |
| ilgizar-valiullin/mcp-web-hound npmjs.com Unified MCP search server with 8 providers, caching, reranking, and rate limits | 20 | Codex, OpenCode | 1 | 519 tok |
| hjqcan/GoodMemory npmjs.com Local-first, auditable memory layer for AI apps and coding agents — Codex, Claude Code, MC | 20 | Claude Code, Codex, OpenCode | 2 | 3,320 tok |
| shane9coy/Agent-Skill-Architecture-Guide katana-agent.com A comprehensive reference for building and organizing AI agent skills across Claude Code, | 20 | Codex, OpenCode | 1 | 2,387 tok |
| PrunaAI/pruna-skills dashboard.pruna.ai Agent skills and plugins to give your agents access to Pruna API and generation workflows. | 20 | Codex, OpenCode | 1 | 1,105 tok |
| risingwavelabs/risingwave-mcp go.risingwave.com RisingWave MCP Server. | 20 | Codex, OpenCode | 1 | 578 tok |
| donnfelker/loop-skills Autonomous, self-re-prompting agent loops for Claude Code — packaged as independently-inst | 20 | Claude Code, Codex, OpenCode | 2 | 1,262 tok |
| j4th/mtg-mcp-server Unified MCP server composing Scryfall, Commander Spellbook, 17Lands, EDHREC, Moxfield, Spi | 20 | Claude Code, Codex, OpenCode | 28 | 4,668 tok |
| epicsagas/epic-harness epicsagas.github.io Multi-tool AI agent harness — 22 skills, self-evolving engine, unified memory, autonomous | 20 | Claude Code, Codex, OpenCode | 3 | 4,815 tok |
| ZenMux/skills ZenMux Skills Repo | 20 | Claude Code, Codex, OpenCode | 2 | 1,286 tok |
| wd041216-bit/zero-api-key-web-search pypi.org Jev-powered search infrastructure for AI agents: zero API keys, MCP-ready, LLM-context awa | 20 | Claude Code, Codex, Gemini CLI, Kiro | 5 | 644 tok |
| ashlrai/phantom-secrets phm.dev Stop AI coding agents from leaking your API keys. Local proxy + MCP that swaps real secret | 20 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode | 4 | 7,553 tok |
| ChouChiu/heya-skill hs.wwchun.top In-depth analysis based on Bilibili creator Heya's video titles, teaching AI to learn Heya | 20 | Codex, OpenCode | 1 | 1,318 tok |
| hypercycle-development/mosaic-companion Open desktop runtime for AI agents, tools, and integrations — MCP servers, sandboxed WASM | 20 | Codex, OpenCode | 1 | 2,534 tok |
| Azure/azure-functions-skills A repository for Azure Functions skills, prompts, and reusable definitions to support agen | 20 | Claude Code, Codex, GitHub Copilot, OpenCode | 12 | 2,310 tok |
| redhat-developer/rhdh-skills Claude Code skill for RHDH plugin lifecycle management | 20 | Claude Code, Codex, OpenCode | 2 | 2,272 tok |
| jrollin/cartog cartog.dev Pre-indexed code knowledge graph via treesitter, enchanced query with RAG, MCP server, pri | 20 | Claude Code, Codex, OpenCode | 2 | 14,264 tok |
| higebu/3gpp-mcp | 20 | Claude Code, Codex, OpenCode | 2 | 3,112 tok |
| jamarpl21/prawo-pl-eli Prawo polskie i UE oraz orzecznictwo z oficjalnych źródeł — 8 skilli (Agent Skills) dla Cl | 20 | Codex, OpenCode | 1 | 599 tok |
| davertor/take-notes Turn a YouTube video or a web article into didactic study notes, rendered as a self-contai | 20 | Codex, OpenCode | 1 | 779 tok |
| tyql688/sessionview Browse, search, resume and manage your AI coding sessions in one local desktop app. (Claud | 20 | Claude Code, Codex, OpenCode | 4 | 2,360 tok |
| patchloom/patchloom patchloom.github.io Structured file edits for AI agents (JSON/YAML/TOML, markdown, AST, dry-run, MCP). Not a g | 20 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 10,152 tok |
| alexfrmn/murmur murmurconnect.com Murmur Connect (Murmur) — encrypted agent-to-agent messaging for AI coding agents. Claude | 20 | Codex, OpenCode | 1 | 810 tok |
| sandraschi/virtualization-mcp MCP Server and Webapp for VirtualBox, Hyper-V and Windows sandbox. VM operations, network | 20 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 8 | 1,672 tok |
| javded-itres/Holix holix-agent.ru Helix is a powerful self-learning AI agent with memory, skills, and the ability to recal | 20 | Codex, OpenCode | 1 | 293 tok |
| helderberto/agent-skills Helder Berto's 🛠️ Battle-tested software engineering skills for AI coding agents 🤖 | 20 | Claude Code, Codex, OpenCode | 2 | 2,238 tok |
| mana-am/claude-f-me f.mana.am Control wearable haptics by chatting in Claude Code — MCP plugin, live console, simulator, | 20 | Codex, OpenCode | 1 | 1,179 tok |
| BnJam/stac-mcp An MCP Server for STAC requests | 20 | Codex, GitHub Copilot, OpenCode | 2 | 5,711 tok |
| pome-sh/digital-twins pome.sh Test mode for your integrations, built for the way agents build | 20 | Codex, OpenCode | 1 | 2,928 tok |
| o-1717986918/arcvellum ArcVellum: a local Agent creative platform for long-form novels, screenplays, and pseudo-d | 20 | Codex, OpenCode | 1 | 810 tok |
| fixed-width/glass fixedwidth.tech MCP server: build → see → interact → debug loop over native GUI apps | 20 | Claude Code, Codex, OpenCode | 2 | 2,569 tok |
| shahlaukik/money-manager-mcp An MCP (Model Context Protocol) server that enables AI assistants to manage personal finan | 20 | Claude Code, Codex, OpenCode | 2 | 2,196 tok |
| Muvon/octobrain octomind.run Persistent memory for AI assistants — semantic search, knowledge graph, and MCP server int | 20 | Codex, OpenCode | 1 | 2,898 tok |
| dustinblack/agent-dashboard Real-time dashboard for spawning and controlling AI coding agents across multiple hosts. S | 20 | Claude Code, Codex, Gemini CLI, OpenCode | 3 | 898 tok |
| jjuanrivvera/canvas-cli canvas-cli.jjuanrivvera.com A powerful command-line interface for Canvas LMS, built with Go. | 20 | Claude Code, Codex, OpenCode | 3 | 2,828 tok |
| preslandallan-ui/marketingskills Marketingskills from Corey Haynes | 20 | Claude Code, Codex, OpenCode | 2 | 2,263 tok |
| zaplitny/atimelogger-mcp | 20 | Claude Code, Codex, OpenCode | 2 | 2,787 tok |
| wyattjoh/herdr-plugin-renamer Renames an auto-generated herdr worktree branch and workspace from the agent's first promp | 20 | Claude Code, Codex, OpenCode | 2 | 3,035 tok |
| wolfenazz/YzPzCode YzPzCode - The Unified Workspace for AI Coding Agents | 20 | Claude Code, Codex, Gemini CLI | 7 | 19,830 tok |
| Lykhoyda/rn-dev-agent lykhoyda.github.io Claude Code | Codex plugin for React Native — explores codebases, designs architecture, im | 20 | Claude Code, Codex, OpenCode | 1 | 7,952 tok |
| apinizer/testnizer testnizer.com Free, fully offline cross-platform desktop API client — HTTP, SOAP, gRPC, WebSocket, Graph | 20 | Codex, OpenCode | 1 | 520 tok |
| ravinperera/ai-token-efficiency-playbook Drop-in instructions, prompts, and workflows to reduce token usage across Codex, Claude Co | 20 | Claude Code, Codex, GitHub Copilot, Gemini CLI, OpenCode | 4 | 1,452 tok |
| playpip/pip-web playpip.io Poker without the casino. Texas Hold'em with friends or against AI. Play money only, no ad | 20 | Claude Code, Codex, OpenCode | 3 | 1,789 tok |
| lee259/oh-my-claudian community.obsidian.md AI Agents in Obsidian: Claude Code, Codex, Cursor, Grok, OpenCode, Oh My Pi, Pi, and DeepS | 20 | Codex, OpenCode | 1 | 2,248 tok |
| ponomr/thinking-toolkit 30 thinking models as one portable agent skill — Claude Code, Codex CLI, OpenClaw, and any | 20 | Codex, OpenCode | 1 | 455 tok |
| glslang/windbg-mcp MCP server exposing WinDbg/DbgEng (live user-mode, kernel, crash dumps, Time Travel Debugg | 20 | Claude Code, Codex, OpenCode | 9 | 1,572 tok |
| 100yenadmin/boardstate 100yenadmin.github.io Your dashboard is data. Any AI can build it; any human can edit it. A protocol + runtime f | 20 | Claude Code, Codex, OpenCode | 3 | 2,557 tok |