Open Design is the open-source, local-first alternative to Claude Design. Web-deployable, BYOK at every layer — 16 coding-agent CLIs auto-detected on your PATH (Claude Code, Codex, Devin for Terminal, Cursor Agent, Gemini CLI, OpenCode, Qwen, Qoder CLI, GitHub Copilot CLI, Hermes, Kimi, Pi, Kiro, Kilo, Mistral Vibe, DeepSeek TUI) become the design engine, driven by 137 composable Skills and 150 brand-grade Design Systems.