5,291 projects whose own agent configuration covers building agents. These are not mods to install — they are how the maintainers of these repositories tell an agent what to do, and what to avoid.
All projects Claude Code6,875Data and AI3,584Git and workflow3,574Backend and APIs3,550Languages3,468Planning3,315Code review2,876Testing2,653DevOps and cloud2,462Writing and docs2,461Memory and context2,373Research2,315
Any agent Claude CodeCodexOpenCodeGitHub CopilotGemini CLICursorWindsurfKiro
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| belingud/yaicli belingud.github.io YAICLI: A powerful command-line AI assistant with 25+ LLM providers. Features chat, comman | 19 | Claude Code, Codex, OpenCode | 20 | 1,141 tok |
| johnjhughes/reclaim-mcp-server A Model Context Protocol (MCP) server implementation using TypeScript | 19 | Codex, OpenCode | 1 | 423 tok |
| jh941213/codex-lattice Codex Lattice: installable Codex skills, hooks, custom agents, MCP search, and docs-first | 19 | Codex, OpenCode | 1 | 3,523 tok |
| nevir/agentfill agentfill.dev A "polyfill" that standardizes and centralizes AGENTS.md configuration and Agent Skills su | 19 | Claude Code, Codex, OpenCode | 6 | 676 tok |
| ydeng11/rulesify Skill management tool for AI agents - discover and install pre-built workflows from Anthro | 19 | Codex, OpenCode | 1 | 4,210 tok |
| gleanwork/mcp-server-tester Playwright-based testing and eval framework for MCP servers with LLM-as-a-judge | 19 | Claude Code, Codex, OpenCode | 3 | 7,848 tok |
| devdacian/touchstone A lightweight, automated multi-model process for rapid agent-skill improvement with advers | 19 | Claude Code, Codex, OpenCode | 3 | 510 tok |
| paulyuk/snap-squad Warm-start addon for bradygaster/squad — pre-baked agent squads for hire for instant deplo | 19 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,506 tok |
| SpillwaveSolutions/architect-agent architect-agent | 19 | Claude Code, Codex, OpenCode | 2 | 2,927 tok |
| stelee410/agent-mailer amp.linkyun.co AMP (Agent Mailer Protocol) is an async mailbox system for AI agents. Instead of chaining | 19 | Claude Code, Codex, OpenCode | 10 | 627 tok |
| rsoesemann/ROBERT.md | 19 | Codex, OpenCode | 1 | 1,536 tok |
| jfrog/agent-belt Reproducible evaluation for AI coding agents. Multi-turn scenarios against Claude Code, Co | 19 | Codex, OpenCode | 1 | 2,594 tok |
| Neeeophytee/ai-cost-cutter-skills flowstacks.xyz 10 skills that cut your AI bill with proof instead of vibes. MIT, works in Claude Code, Co | 19 | Claude Code, Codex, OpenCode | 2 | 1,328 tok |
| dnlbox/ai-protocol Start with a concept, not a stack. A harness-agnostic protocol that scaffolds greenfield p | 19 | Codex, OpenCode | 1 | 1,370 tok |
| chwoerz/reporelay chwoerz.github.io A self-hosted code context engine for MCP. | 19 | Claude Code, Codex, OpenCode | 2 | 2,403 tok |
| bonginkan/fairy_tale fairytale.run Fable/Mythos-informed workflow augmentation for agent skills and plugins | 19 | Claude Code, Codex, OpenCode | 6 | 366 tok |
| Wolfe-Jam/grok-faf-mcp faf.one Persistent Project Context for xAI Grok — IANA-registered .faf format · MCP server on a UR | 19 | Claude Code, Codex, OpenCode | 2 | 1,195 tok |
| sawrus/agent-guides sawrus.github.io One set of project rules for Claude Code, Codex and OpenCode. A quality gate runs your che | 19 | Codex, OpenCode | 1 | 733 tok |
| Lykhoyda/ask-llm lykhoyda.github.io MCP server and CLI for second opinions: lets Claude Code, Codex and Cursor consult Codex, | 19 | Codex, OpenCode | 1 | 1,776 tok |
| jnPiyush/AgentX agentx-silk.vercel.app AgentX - Digital Force for Software Delivery | 19 | Claude Code, Codex, GitHub Copilot, OpenCode | 11 | 11,896 tok |
| asasugar/SuperSpec asasugar.github.io Spec-driven development (SDD) for AI-powered coding assistants | 19 | Claude Code, Codex, Cursor, OpenCode | 20 | 2,431 tok |
| ulises-jeremias/agent-toolkit agent-toolkit.io 🛠️ Composable AI agent toolkit — skills, agents, loops, and MCP templates for Claude Code | 19 | Codex, OpenCode | 1 | 3,120 tok |
| wsauret/flywheel flywl.sh The coding agent that keeps working. Terminal, web, phone, and VS Code. | 19 | Claude Code, Codex, OpenCode | 2 | 8,690 tok |
| sandraschi/virtualization-mcp MCP Server and Webapp for VirtualBox, Hyper-V and Windows sandbox. VM operations, network | 19 | Claude Code, Codex, GitHub Copilot, Cursor, OpenCode, Windsurf | 8 | 1,672 tok |
| SiniyaYousuf/everything_claudecode | 19 | Claude Code, Codex, OpenCode | 58 | — |
| o-1717986918/arcvellum ArcVellum: a local Agent creative platform for long-form novels, screenplays, and pseudo-d | 19 | Codex, OpenCode | 1 | 810 tok |
| qwize-br/wize-development-kit | 19 | Codex, OpenCode | 1 | 902 tok |
| dcc-mcp/dcc-mcp-houdini pypi.org SideFX Houdini MCP adapter for AI agents to inspect scenes, author procedural node graphs, | 19 | Codex, OpenCode | 1 | 1,834 tok |
| anomaliaso/anomalia anomalia.so Your marketing department, automated. Open-source Grok Bot alternative specialized in mark | 19 | Claude Code, Codex, OpenCode | 30 | 10,835 tok |
| whit3rabbit/clean-room-skill A skill for claude/codex to take source code and implement a clean-room of agents to gener | 19 | Claude Code, Codex, OpenCode | 2 | 4,734 tok |
| shikokuchuo/secretbase shikokuchuo.net secretbase - Cryptographic Hash Functions and Data Encoding | 19 | Codex, OpenCode | 1 | 951 tok |
| zapstore/zsp Publish apps to relays | 19 | Codex, OpenCode | 1 | 352 tok |
| floor/vlist vlist.io Accessible, batteries-included ultra efficient virtual list for every framework. Zero deps | 19 | Claude Code, Codex, OpenCode | 17 | 1,210 tok |
| danielterra/FOUNDATION | 19 | Claude Code, Codex, OpenCode | 21 | 6,918 tok |
| DimitriGeelen/agentic-engineering-framework Governance framework for AI coding agents — enforces task traceability, structural gates, | 19 | Claude Code, Codex, OpenCode | 29 | 44,416 tok |
| meshtastic/meshtastic-mcp pypi.org MCP server + agent skills for AI tooling to discover, drive, observe, and test Meshtastic | 19 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode, Windsurf | 6 | 8,026 tok |
| melodypapa/py-armodel support AUTOSAR model with python | 19 | Claude Code, Codex, OpenCode | 9 | 8,552 tok |
| nativesoil/handover nativesoil.dev An open JSON format and local toolchain for carrying an AI assisted project's working stat | 18 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 6,002 tok |
| speakeasy-api/skills speakeasy.com Agent Skills for SDK generation and OpenAPI tooling with Speakeasy CLI | 18 | Claude Code, Codex, OpenCode | 2 | 3,754 tok |
| DocRoms/Kronn Self-hosted control plane for AI coding agents (Claude Code, Codex, Gemini, Ollama). Shar | 18 | Claude Code, Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Windsurf | 7 | 1,616 tok |
| liqiongyu/agentpack crates.io A declarative, safe control plane for deploying coding-agent assets across tools. | 18 | Codex, OpenCode | 2 | 1,011 tok |
| evepupil/CloudMind An open-source, user-owned AI memory layer running in your personal Cloudflare account. | 18 | Claude Code, Codex, OpenCode | 2 | 9,868 tok |
| chuancyzhang/deepseek-cowork DeepSeek Cowork is a Windows desktop agent workspace built around DeepSeek-style reasoning | 18 | Codex, OpenCode | 1 | 2,394 tok |
| AgentConnect/awiki-agent-id-message Provide a skill that offers identity, public profile, and end-to-end messaging services fo | 18 | Claude Code, Codex, OpenCode | 2 | 5,848 tok |
| miticojo/adk-skill Agent Skill for building AI agents with Google's Agent Development Kit (ADK) in Python, Ja | 18 | Claude Code, Codex, OpenCode | 2 | 610 tok |
| castle-x/skills-x AI Agent Skills Repo | 18 | Claude Code, Codex, OpenCode | 23 | 1,183 tok |
| WayneChou-bot/LLM-Wiki-Agent-Workflow-Demo llm-wiki-agent-workflow-demo.vercel.app Karpathy-inspired LLM Wiki demo: AI agents compile raw sources into a persistent, self-lin | 18 | Codex, OpenCode | 1 | 368 tok |
| celados/mcpx Apple MCP tools ✅ | 18 | Codex, OpenCode | 1 | 102 tok |
| understudylabs/understudy-agent-tools Public MIT-licensed Understudy agent tools and skill library | 18 | Claude Code, Codex, OpenCode | 3 | 2,422 tok |
| veecle/chiplab veecle.ai Give agents access to virtual hardware. | 18 | Claude Code, Codex, GitHub Copilot, OpenCode | 3 | 2,171 tok |