Claude Code plugin
Design OS
Design CLI for Claude Code, Codex and Antigravity: describe the UI in plain words, get production-grade web, Figma and SwiftUI output through deterministic taste gates.
Install
/plugin marketplace add jangtrinh/design-osFound in the project README. Check it for setup steps after installing.
git clone https://github.com/jangtrinh/design-os.gitFrom the README
DESIGN:OS (design-os) Multi-runtime design operating system and CLI for Claude Code, OpenAI Codex, Gemini CLI, and Google Antigravity. Install once to equip any AI coding agent with 12+ domain design skills, deterministic verification gates, 2:1 axonometric art direction, and live Figma / SVG / 3D / SwiftUI / packaging workflows. DESIGN:OS is free to use and modify. Source-available under PolyForm Shield 1.0.0. Install with npx @easestart/design-os init. Quickstart · What it makes · Install · How it works · Commands · Limits Why this exists AI coding agents write functional code quickly, but their default visual output suffers from inconsistent spacing, hallucinated tokens, rainbow badges, and zero verification gates. DESIGN:OS turns aesthetic taste and design systems engineering into deterministic, runtime-agnostic contracts. Quickstart 1. Install the plugin or CLI In Claude Code: Or from your terminal (Codex, Gemini CLI, Antigravity, OpenCode, or standalone CLI): 2. Ask in plain English Open your project in your AI coding agent and describe what you need: "Initialize DESIGN:OS in this repo and wire our design tokens and verification gates for Claude Code and Codex." "Audit our current frontend components against DESIGN:OS typography, spacing, and WCAG 2.2 AA contrast gates." "Scaffold a new product landing page with 2:1 axonometric B&W technical illustrations and SEO/AEO/GEO metadata." 3. Verify your setup What it makes Every deliverable produced by design-os is backed by a deterministic verification gate rather than freehand AI guesswork. Prompt: "Initialize DESIGN:OS in this repo and wire our design tokens and verification gates for Claude Code and Codex." architecture — Three-tier web application medallion — Survey dataset storage tiers bar —…
How plugins work
- A plugin bundles slash commands, subagents, skills, hooks, MCP servers and status lines so they install together.
- Add the marketplace inside Claude Code with /plugin marketplace add jangtrinh/design-os, then run /plugin to pick what to install.
- You can turn a plugin off again from /plugin without deleting anything.
Details
- Repository
- jangtrinh/design-os
- Website
- jangtrinh.github.io/design-os
- Language
- TypeScript
- Last updated
- 1 November 2026
- Topics
- accessibilityai-agentsantigravityclaude-codecodexdesign-clidesign-systemdesign-tokensdeveloper-toolsfigmafigma-pluginswiftui
FAQ
What is Design OS?
Design CLI for Claude Code, Codex and Antigravity: describe the UI in plain words, get production-grade web, Figma and SwiftUI output through deterministic taste gates. It is a plugin for Claude Code, from jangtrinh/design-os on GitHub.
How do I install Design OS?
Run /plugin marketplace add jangtrinh/design-os inside Claude Code, then follow the setup in the README.
Is Design OS popular?
jangtrinh/design-os has 36 GitHub stars and 3 forks. It was last updated on 1 November 2026.
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