Open Design: The open-source Claude Design alternative

🔥 Open Design 0.10.0 is here: the all-in-one Agentic design workspace. The whole craft now lives in one window — go from a vague idea to discovering references, gathering material, editing interactively, queuing comments, polishing motion, and handing off to an editor or a Code Agent — without leaving the app. With parallel sessions, it stops feeling like one assistant and starts feeling like a local design team working for you. Download 0.10.0 · Join the discussion

⚡ Open Design AMR (Agentic Model Router) — the official model service. One recharge to use GPT, Claude, Gemini, and DeepSeek inside Open Design: 20+ flagship models, zero config, billed by real token usage. Try AMR

🏅 The Open Design Fellow program is now open. If you also believe design should be open — become an Open Design Fellow, shape the product alongside the core team, and help more people take part in defining the future of design. Details → MAINTAINERS.md and Discord.

Open Design — The open-source Claude Design alternative · 150 Design Systems · 261 Plugins · 21 Coding Agents · 14 Media Providers

Website · Download · Model Router · Discord · Follow @OpenDesignHQ

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What is Open Design

🎨 The local-first, open-source Claude Design alternative. 🖥️ Native desktop app for macOS and Windows. ⚡ 100+ skills · ✨ 150 brand-grade DESIGN.md systems · 📦 261 ready-to-use plugins. 🖼️ Generates web · desktop · mobile prototypes, live dashboards / artifacts, decks, images, video, plus HyperFrames motion graphics. 🔒 Sandboxed iframe preview · HTML / PDF / PPTX / MP4 export. 🤖 Runs on Claude Code · OpenClaw · Codex · Cursor · OpenCode · Qwen · Copilot · Amp · Hermes · Kimi · Antigravity and 22 local CLIs, or any OpenAI-compatible endpoint via BYOK.

Open Design is what you get when the agent-native loop Anthropic shipped with Claude Design — discover the brief, lock the direction, stream the artifact, critique, deliver — stops being closed and becomes a filesystem of skills, design systems, and plugins that the coding agents already on your laptop can read, write, and remix. Your CLI becomes the design engine, your laptop becomes the studio, and your team’s DESIGN.md becomes the brand contract.

It’s also the Figma alternative for the agent era — instead of pushing pixels on a canvas, it delivers single-page artifacts in real CSS, real fonts, real components, exported straight to HTML / PDF / PPTX / MP4 — already shaped by your design system, already runnable inside the agent you use every day.

Product tour

A quick look at what Open Design is and what it does. Start from Home, orchestrate repeat workflows with Automation, distill a brand contract in Design System, and extend with Plugins and integrations; inside any project’s Studio, the same design system streams out prototypes, live artifacts, HyperFrames, decks, and images.

Core pages

_{Home — the overview entry point. Pick a skill and a design system, type the brief, and kick off everything from one place.}

_{Automation — orchestrate repetitive design workflows into reusable, schedulable automations.}	_{Design System — distill your team's DESIGN.md into a brand contract that shapes every output.}
_{Plugin — browse, install, and distribute workflow plugins to extend generation on demand.}	_{Integrations — connect external systems and MCP tools, and use Open Design from any IDE, script, or automation.}

Studio — many artifact types in one project

Inside a project’s Studio, the same design system streams out multiple artifact types:

_{Prototype — single-page HTML artifacts that read your design system and render in a sandboxed iframe, previewable instantly and downloadable as source.}	_{HyperFrame — programmatic motion and animated graphics, rendered to a real MP4 (e.g. 1920×1080 · 30fps).}
_{Deck — pitch decks you can page through, navigate by keyboard, and export to PPTX / PDF.}	_{Image — brand-grade images and visual assets, with high-resolution generation and download.}

Platform Compatibility

Open Design ships as skills, a CLI, and an MCP server that mainstream coding agents consume natively. Once OD is installed, a single od mcp install <agent> wires the MCP server into that agent’s config, and you call the same tools from inside any agent.

Coding agent / platform	Status	One-line MCP server install
Claude Code	✅ Supported	`od mcp install claude`
Codex CLI	✅ Supported	`od mcp install codex`
Cursor	✅ Supported	`od mcp install cursor`
VS Code + GitHub Copilot	✅ Supported	`od mcp install copilot`
GitHub Copilot CLI	✅ Supported	`od mcp install copilot`
Gemini CLI	✅ Supported	`od mcp install gemini`
OpenCode	✅ Supported	`od mcp install opencode`
OpenClaw	✅ Supported	`od mcp install openclaw`
Antigravity	✅ Supported	`od mcp install antigravity`
Cline	✅ Supported	`od mcp install cline`
Trae	✅ Supported	`od mcp install trae`
Kimi CLI	✅ Supported	`od mcp install kimi`
Pi Agent	✅ Supported	`od mcp install pi`
Mistral Vibe CLI	✅ Supported	`od mcp install vibe`
Hermes Agent	✅ Supported	`od mcp install hermes`

od mcp install <agent> --print for a dry-run preview · --uninstall to remove · full list with od mcp install --help.

The 21 coding-agent CLIs Open Design supports — Claude Code · Codex · OpenCode · Hermes · Antigravity · Gemini · Grok Build · Kimi · Cursor Agent · Qwen · Qoder · GitHub Copilot · Pi · Kiro · Kilo · Mistral Vibe · DeepSeek · Reasonix · Aider · Devin · Trae

No CLI installed? The BYOK proxy at POST /api/proxy/{anthropic,openai,azure,google,ollama,senseaudio}/stream gives you the same loop (no process spawn) — paste baseUrl + apiKey + model, with support for OpenAI, Anthropic, Azure OpenAI, Google Gemini, Ollama, LM Studio, vLLM, or any OpenAI-compatible endpoint. Per-target SSRF protection blocks internal IPs / link-local / CGNAT at the daemon edge.

The adapter contract and stream parsers live in apps/daemon/src/agents.ts. Adding a new CLI is one entry — see docs/agent-adapters.md.

Demo

Four core product categories, all rendered by a coding agent running on your laptop. Click a thumbnail to see the real example.

1 · Prototypes — web · desktop · mobile

The default output surface. Single-page HTML artifacts that read your DESIGN.md and render in a sandboxed iframe.

_{Entry view — pick a skill, pick a design system, type the brief. One surface for prototypes, dashboards, decks, mobile apps, magazine pages.}	_{Mobile prototype — pixel-accurate iPhone 15 Pro chrome, multi-screen flows. The agent never redraws the phone frame; shared device frames live in assets/frames/.}
_{Web prototype — an editorial dashboard with scrollbars, KPIs, and charts. Rendered straight from design-templates/dating-web/.}	_{Mobile app prototype — a three-screen gamified flow with XP ribbons and quest detail. Hand off straight to Cursor / Codex / Claude Code to turn into React/Next/Vue.}

2 · Live artifacts & dashboards

Live dashboards, decision rooms, KPI walls — single-page artifacts that pull data through a tweaks panel and stay editable in place.

_{Live dashboard — an editable KPI wall whose tweaks panel surfaces the parameters worth nudging. The agent emits a manifest, and the iframe re-renders without a reload.}	_{Decision room — a multi-source briefing artifact for product / research / ops meetings.}
_{GitHub-style dashboard — repo metrics presented as a live artifact.}	_{Flow live-dashboard template — a domain-specific KPI template, branded through the active DESIGN.md.}

3 · Decks — magazine decks, weekly updates, pitches

_{Deck mode (guizang-ppt) — magazine layouts, WebGL hero, P0/P1/P2 checklists. Bundled verbatim from op7418/guizang-ppt-skill with its original license preserved.} _{Swiss International-style deck — grid-anchored, monochrome accents. One of 15 deck templates and 36 themes under design-templates/html-ppt-*/.}

Every deck exports to HTML (single file, inlined assets), PDF (browser print, deck-aware), PPTX (agent-driven skill), ZIP (archive), or Markdown.

4 · Images — `gpt-image-2`, ImageRouter, custom API

_{Illustrated city food map
Hand-drawn editorial travel poster}

_{Cinematic elevator scene
Single-frame editorial still}

_{Cyberpunk portrait
Profile avatar — neon face text}

_{3D stone staircase
Hewn-stone infographic}

_{Glamorous portrait
Editorial studio shot}

93 ready-to-replicate prompts live in prompt-templates/ — preview thumbnails, full prompt body, target model, aspect ratio, and source attribution. One click drops a brief into the composer.

5 · Video & HyperFrames — agent-native motion graphics

HyperFrames is HeyGen’s open-source, agent-native video framework, integrated as a first-class citizen in Open Design. The agent writes HTML + CSS + GSAP, and HyperFrames renders it to a deterministic MP4 via headless Chrome + FFmpeg. Pair it with Seedance 2.0 for cinematic t2v / i2v, Veo 3 / Sora 2 / Kling 2 for routed model variants, and Suno v5 / Lyria 2 for the audio layer.

_{30s SaaS product promo · 16:9 · UI 3D reveals}	_{TikTok karaoke talking-head · 9:16 · TTS + word-synced captions}	_{30s brand sizzle reel · 16:9 · audio-reactive kinetic type}	_{Bar chart race · 16:9 · NYT-style data infographic}
_{Flight map · 16:9 · Apple-style route reveal}	_{4s cinematic logo outro · 16:9 · piece-by-piece assembly + bloom}	_{$0 → $10K money counter · 9:16 · Apple-style hype}	_{Website-to-video · 16:9 · captures the site at 3 viewports}

11 HyperFrames templates + 39 Seedance prompts ship with the repo. Catalog thumbnails © HeyGen; the framework is Apache-2.0. The OD-specific render workflow (composition cache, sandbox-exec workaround, MP4-as-chip) is detailed in design-templates/hyperframes/.

Why Open Design

In April 2026, Anthropic released Claude Design — the first time an LLM stopped writing prose and started delivering design artifacts directly. It went viral. But it stayed closed-source, paid-only, cloud-only, locked to Anthropic’s model, Anthropic’s skills, Anthropic’s surface. No checkout, no self-host, no Vercel deploy, no swap-in-your-own-agent.

Open Design (OD) is the open-source alternative. Same loop, same artifact-first mental model, none of the lock-in:

🤖 Agent-native, model-agnostic. We don’t ship an agent. The claude / codex / cursor-agent / copilot / hermes / kimi already on your PATH are the design engine. Swap with one click.
🧠 Brand-grade by default. Every render reads the active DESIGN.md — a 9-section schema covering palette, type, spacing, motion, voice, anti-patterns. 150 systems ship with the repo (Linear, Stripe, Vercel, Airbnb, Apple, Tesla, Notion, Anthropic, Cursor, Supabase, Figma…). Drop a folder in, the picker finds it.
🖥️ Local-first, BYOK at every layer. Native desktop apps for macOS (Apple Silicon + Intel) and Windows (x64). Linux AppImage on the optional release lane. No telemetry, no cloud round-trip. Before describing daemon data paths, contributors and operators MUST read AGENTS.md → Daemon data directory contract. This README MUST NOT restate it.
🌍 Composable on three planes. Plugins carry runnable workflows · skills carry the agent’s design taste · design systems carry the brand. All three are plain files anyone can author, version, and publish.
🔁 Refresh an existing codebase. Hand a git repo + DESIGN.md to the agent and it refactors your real components to the brand spec. Dedicated plugins migrate Figma / Pencil workflows into React / Next.js / Vue code.
🔒 Privacy by conviction. Everything runs where your data lives — your laptop, your team’s server, your Vercel project. When the network is needed, the BYOK proxy is SSRF-guarded.

Comparison

	Claude Design	Figma	Lovable / v0 / Bolt	Open Design
Open source	❌	❌	❌	✅ Apache-2.0
Self-host / desktop	❌	❌	❌	✅ macOS + Windows + Vercel
Agent-native (runs in your CLI)	Anthropic only	❌	Cloud agent only	✅ 22 CLIs + BYOK
Brand-grade `DESIGN.md`	Proprietary	Theme JSON	Limited tokens	✅ 150 systems shipped
Skills / plugins / templates	Closed	Plugin store	Closed	✅ 100+ skills · 261 plugins
HyperFrames (HTML→MP4)	❌	❌	❌	✅ First-class
Refresh an existing repo to brand	❌	❌	❌	✅ via agent + `DESIGN.md`
Minimum billing	Pro / Max / Team	Pro / Org	Pro / Team	BYOK · any compatible endpoint

Quick start

🖥️ Download the desktop app (recommended — zero config)

The fastest way to use Open Design. No Node, no pnpm, no clone.

macOS (Apple Silicon · Intel x64) → open-design.ai or GitHub Releases
Windows (x64) → open-design.ai or GitHub Releases
Linux (AppImage, optional lane) → GitHub Releases

After install: the app auto-detects every coding-agent CLI on your PATH, loads 100+ skills and 150 design systems, and lets you type a brief in the entry view.

🤖 Install into your coding agent (no UI)

You can use Open Design without ever opening the GUI — call it as a skill, plugin, or MCP server inside Claude Code, Codex, Cursor, Copilot, OpenClaw, Antigravity, Hermes, Kimi, and more.

# One-line install into the agent you're using:
od mcp install <agent>
# <agent> = claude | codex | cursor | copilot | openclaw | antigravity | gemini
#         | pi | vibe | hermes | cline | kimi | trae | opencode

Then, inside the agent:

> Use open-design to generate a landing page with the Linear design system

The agent reads skills/, picks the right SKILL.md, binds the DESIGN.md you named, and emits an <artifact> previewable at http://localhost:7456.

🐳 Run with Docker

git clone https://github.com/nexu-io/open-design.git
cd open-design/deploy
cp .env.example .env
echo "OD_API_TOKEN=$(openssl rand -hex 32)" >> .env
docker compose up -d
# open http://localhost:7456

macOS users: If the web UI shows Authorization: Bearer <OD_API_TOKEN> required, Docker Desktop bridge networking is the cause. See Docker Desktop on macOS for the fix.

🚀 Deploy on Sealos

The Sealos App Store template runs the published Open Design Docker image with persistent workspace storage and Basic Auth on the public proxy. For custom public or shared Docker deployments, follow the reverse-proxy and OPEN_DESIGN_ALLOWED_ORIGINS guidance in deploy/README.md.

🧑‍💻 Run from source

git clone https://github.com/nexu-io/open-design.git
cd open-design
corepack enable && pnpm install
pnpm tools-dev run web

Node ~24, pnpm 10.33.x. Windows users, see docs/windows-troubleshooting.md. Full quickstart, env vars, Nix flake, and packaged build flow → QUICKSTART.md.

A full workflow — from brief to artifact

brief → plugin → direction → design system → artifact → handoff → memory

A PM submits a brief. The plugin picker offers landing page · pitch deck · dashboard · social post · PM spec · OKR scorecard…
A designer (or the agent) locks the direction. No brand? Pick from 5 curated directions. Have a brand? Drop a screenshot / URL → the agent connects GitHub, imports Figma, and codifies a reusable DESIGN.md.
The agent emits the first <artifact>. Plugin + skill + DESIGN.md are bound. It streams into a sandboxed iframe, editable in place — not “regenerate from scratch.”
Hand off to engineering. The artifact is real HTML/CSS — drop it into Cursor, Codex, or Claude Code to keep building as code. Or export PPTX / PDF / MP4 straight to marketing.
Open Design gets smarter as you use it. Your screenshots, fonts, palettes, and confirmed artifacts accumulate as defaults for the next session. Less rework, less drift.

Use Open Design from your coding agent

Open Design ships a stdio MCP server and per-agent install scripts. Any MCP-compatible agent in another repo can read files from your local Open Design projects directly — tokens CSS, JSX components, entry HTML — as a structured API queryable by name. The agent always sees the live file, not a stale export.

# One-line install (16+ CLIs supported):
od mcp install <agent>

# Then the agent can:
od search-files "primary button"      # search files across projects
od get-file design-systems/linear-app/DESIGN.md
od get-artifact <slug>                # latest rendered artifact
od plugin run web-prototype --brief "..."
od skill list --scenario marketing

Why MCP? Exporting and re-attaching a zip every iteration breaks flow. MCP exposes the design source directly — the agent always sees the live file.

For an agent starting from scratch, the installer places ~/.config/<agent>/open-design.json (or the platform equivalent) plus a copy-paste MCP snippet. Cursor gets a one-click deeplink; Claude Code gets a claude mcp add-json one-liner; every other agent gets JSON in the schema its config expects. Full per-agent flow → Settings → MCP server in the desktop app, or docs/agent-adapters.md.

Security model. Read-only by default, the daemon binds to 127.0.0.1, and SSRF is blocked at the proxy edge. LAN exposure requires an explicit OD_BIND_HOST plus OD_ALLOWED_ORIGINS. Connector credentials and live-artifact preview routes stay loopback-only regardless.

Skills

100+ skills ship in the box — each is a folder under skills/ following the Claude Code SKILL.md convention, extended with an od: frontmatter (mode, platform, scenario, preview.type, design_system.requires, default_for, fidelity, example_prompt). Drop a folder in, restart the daemon, it appears in the picker.

Two modes anchor the catalog: prototype (web/mobile/desktop single-page artifacts) and deck (horizontal-swipe presentations). Also image, video, audio, template, design-system, and utility modes. The scenario field groups them by audience: design · marketing · operation · engineering · product · finance · hr · sale · personal.

Skill	Mode	Scenario	What it produces
`web-prototype`	prototype	design	Default landing page / hero
`saas-landing`	prototype	marketing	Hero / features / pricing / CTA
`dashboard`	prototype	operation	Admin / analytics (with sidebar)
`mobile-app`	prototype	design	iPhone 15 Pro / Pixel framed app
`mobile-onboarding`	prototype	design	Splash · value-prop · sign-in flow
`social-carousel`	prototype	marketing	3-card 1080×1080 carousel
`email-marketing`	prototype	marketing	Table-fallback-safe brand email
`magazine-poster`	prototype	marketing	Single-page magazine layout
`motion-frames`	prototype	marketing	Looping CSS motion hero
`sprite-animation`	prototype	marketing	8-bit pixel animated explainer
`pm-spec`	prototype	product	PM spec doc (with TOC + decision log)
`team-okrs`	prototype	product	OKR scorecard
`eng-runbook`	prototype	engineering	Incident runbook
`finance-report`	prototype	finance	Exec finance summary
`hr-onboarding`	prototype	hr	Role onboarding plan
`guizang-ppt`	deck	marketing	Magazine-style web PPT (deck default)
`html-ppt-*`	deck	marketing	15 deck templates × 36 themes (master template in `design-templates/html-ppt/`)
`hyperframes`	video	marketing	HTML → MP4 motion graphics (HeyGen OSS framework)
`critique`	utility	design	Five-dimensional self-critique scoresheet
`tweaks`	utility	design	AI-emitted tweaks-panel manifest

Full skill protocol → docs/skills-protocol.md. Skill registry endpoint: GET /api/skills.

Design Systems

150 brand-grade DESIGN.md systems ship with the repo — each a single Markdown file with a 9-section schema (color, typography, spacing, layout, components, motion, voice, brand, anti-patterns), from VoltAgent/awesome-design-md. Switch a system → the next render uses the new tokens. No theme JSON.

Full catalog (click to expand)

AI & LLM — claude · cohere · mistral-ai · minimax · together-ai · replicate · runwayml · elevenlabs · ollama · x-ai

Developer Tools — cursor · vercel · linear-app · framer · expo · clickhouse · mongodb · supabase · hashicorp · posthog · sentry · warp · webflow · sanity · mintlify · lovable · composio · opencode-ai · voltagent

Productivity — notion · figma · miro · airtable · superhuman · intercom · zapier · cal · clay · raycast

Fintech — stripe · coinbase · binance · kraken · mastercard · revolut · wise

E-commerce — shopify · airbnb · uber · nike · starbucks · pinterest

Media — spotify · playstation · wired · theverge · meta

Automotive — tesla · bmw · ferrari · lamborghini · bugatti · renault

Other — apple · ibm · nvidia · vodafone · resend · spacex

Starters — default (Neutral Modern) · warm-editorial

Re-import the library via scripts/sync-design-systems.ts. Add your own brand → drop a DESIGN.md into design-systems/<brand>/. Full guide → design-systems/README.md.

Plugins

261 official plugins live in plugins/_official/. Each plugin is a portable agent-skill folder — a SKILL.md (readable by any agent that supports Agent Skills), plus an optional open-design.json manifest that gives Open Design marketplace metadata, inputs, previews, pipelines, and capability declarations. Jump straight to a category:

Category	Count	Contents
`scenarios/`	11	Complete design scenarios — `od-default`, `od-design-refine`, `od-figma-migration`, `od-code-migration`, `od-react-export`, `od-nextjs-export`, `od-vue-export`, `od-media-generation`, `od-new-generation`, `od-tune-collab`, `od-plugin-authoring`
`image-templates/`	45	One-shot image prompts — editorial, cinematic, product, portrait
`video-templates/`	50	HyperFrames / Seedance / Veo motion templates
`design-systems/`	142	Brand `DESIGN.md` wrapped as plugins
`atoms/`	13	Reusable UI fragments (buttons, heroes, KPI cards)
`examples/`	140	Remixable reference outputs

Also plugins/community/ for community plugins and plugins/registry/ for the publishing flow.

What plugins can do

🤖 Run in any coding agent — Claude Code, Codex, Cursor, Copilot, OpenClaw, Antigravity, Hermes, Kimi… through the same skill protocol the agent already knows.
🔁 Migrate Figma / Pencil workflows → React, Next.js, or Vue source. See od-figma-migration.
🛠️ Refresh an existing codebase to a brand spec — point a plugin at a git repo + DESIGN.md, get a PR. See od-code-migration.
💾 Persist custom workflows — your team’s reusable templates sit next to the shipped ones.

Using plugins

Plugins are at full parity across the web UI and the od CLI — same /api/plugins endpoints, pick whichever fits.

In the desktop / web app: open the Plugin page to browse the marketplace and click Install; inside a project’s Studio, plugins appear as composer chips you click to apply (with the inputs they declare).

On the command line (runs without a UI — this is the path external agents use):

od plugin list                       # list installed plugins (--task-kind / --mode / --tag filters)
od plugin search "landing page"      # search by keyword
od plugin info od-default            # inspect a plugin's metadata, inputs, capabilities
od plugin install od-figma-migration # install from a registry; also accepts ./local-folder or an https://… link
od plugin apply od-default --input brief="a one-page pitch for our seed round"
od plugin upgrade od-default         # upgrade
od plugin uninstall od-default       # uninstall

Every command supports --json, so you can pipe it through jq / xargs into automation.

Building a plugin

A plugin needs only a SKILL.md at minimum; to list it in the Open Design marketplace, add an open-design.json:

my-plugin/
├── SKILL.md            ← required: YAML frontmatter (name · description) + trigger phrasing + workflow (aim for < 500 lines)
├── open-design.json    ← needed to list: marketplace metadata + inputs + pipeline + capabilities
├── README.md           ← optional: usage, install, registry links
├── preview/            ← optional: index.html / poster.png (strongly recommended for visual plugins)
└── examples/           ← optional: concrete use cases

Core open-design.json fields: specVersion (currently 1.0.0), name (stable ID), version (semver), compat.agentSkills[].path (points at ./SKILL.md), od.kind (skill / scenario / atom / bundle), od.taskKind (new-generation / figma-migration / code-migration / tune-collab), od.mode (the output surface, e.g. prototype / deck / live-artifact / image / video / hyperframes / audio / design-system / scenario), od.capabilities[] (declare the minimum — a restricted install grants only prompt:inject by default), od.inputs[] (apply-time parameters).

Scaffold + validate locally:

od plugin scaffold --id my-plugin --title "My Plugin"   # generate the skeleton
od plugin validate ./my-plugin                          # check manifest / file layout
pnpm guard && pnpm --filter @open-design/plugin-runtime typecheck

Full field set and runtime contract → plugins/spec/SPEC.md; developing a plugin with a coding agent → plugins/spec/AGENT-DEVELOPMENT.md; copy-paste minimal templates → plugins/spec/examples/.

Contributing a plugin

Drop the plugin folder into plugins/community/ (third-party plugins), or — to ship it bundled with Open Design — into the matching tier of plugins/_official/.
Pass validation: od plugin validate, pnpm guard, pnpm --filter @open-design/plugin-runtime typecheck.
Fill the PR using the template in plugins/spec/CONTRIBUTING.md (ID, version, lane, mode, capabilities, trigger examples; attach a screenshot / preview for visual plugins).
To publish to an external registry (skills.sh / ClawHub / standalone GitHub) → plugins/spec/PUBLISHING-REGISTRIES.md.

Plugin registry endpoint: GET /api/plugins. Directory overview → plugins/README.md (简体中文).

Architecture

┌────────────────── browser (Next.js 16) / Electron shell ──────────────┐
│  chat · file workspace · iframe preview · settings · import · MCP     │
└──────────────┬─────────────────────────────────────┬─────────────────┘
               │ /api/*                              │
               ▼                                     ▼
   ┌─────────────────────────────────┐   /api/proxy/{provider}/stream (SSE)
   │  local daemon (Express+SQLite)  │   ─→ any OpenAI-compatible BYOK,
   │                                  │       SSRF-guarded at the edge
   │  /api/skills    /api/plugins    │
   │  /api/design-systems            │
   │  /api/chat (SSE)   /api/proxy/* │
   │  /api/projects/:id/files/...    │
   │  /api/artifacts/{save,lint}     │
   │  /api/import/claude-design      │
   │  MCP stdio server                │
   └─────────┬───────────────────────┘
             │ spawn(cli, [...], { cwd: managed project cwd })
             ▼
   ┌──────────────────────────────────────────────────────────────────┐
   │  claude · codex · cursor-agent · copilot · openclaw · antigravity ·│
   │  gemini · opencode · qwen · qoder · hermes (ACP) · kimi (ACP) ·    │
   │  pi (RPC) · kiro · kilo · vibe (ACP) · cline · trae · deepseek     │
   │  reads SKILL.md + DESIGN.md, writes artifacts to disk             │
   └──────────────────────────────────────────────────────────────────┘

Layer	Stack
Frontend	Next.js 16 App Router + React 18 + TypeScript
Daemon	Node 24 · Express · SSE streaming · `better-sqlite3`
Storage	Before changing or documenting daemon storage paths, you MUST read `AGENTS.md` → Daemon data directory contract. This README MUST NOT restate it.
Preview	Sandboxed `srcdoc` iframe + streaming `<artifact>` parser
Export	HTML (inlined) · PDF (browser print) · PPTX (agent-driven) · ZIP · Markdown · MP4 (HyperFrames)
Desktop	Electron shell + sandboxed renderer + sidecar IPC (STATUS · EVAL · SCREENSHOT · CONSOLE · CLICK · SHUTDOWN)
Lifecycle	One entry point: `pnpm tools-dev` (start / stop / run / status / logs / inspect / check)

Full architecture → docs/architecture.md. Skill protocol → docs/skills-protocol.md. Agent adapter contract → docs/agent-adapters.md.

Roadmap

Daemon + 22 coding-agent CLI adapters + skill registry + design-system catalog
Web app + chat + question form + 5-direction picker + todo progress + sandboxed preview
100+ skills · 150 design systems · 5 visual directions · 5 device frames
SQLite-backed projects · conversations · messages · tabs · templates
Multi-provider BYOK proxy (/api/proxy/{anthropic,openai,azure,google,ollama,senseaudio}/stream) + SSRF guard
Claude Design ZIP import (/api/import/claude-design)
Sidecar protocol + Electron desktop + IPC automation
Artifact lint API + 5-dim self-critique pre-emit gate
0.8.0 — plugin marketplace infrastructure (261 official plugins, manifest spec, per-agent install scripts)
0.9.0 — Open Design AMR (official Model Router built into the app: zero config, one-click sign-in)
Packaged Electron builds — macOS (Apple Silicon + Intel) + Windows (x64) + Linux AppImage (optional lane)
Comment-mode surgical edits — partially shipped; reliable targeted patching in progress
AI-emitted tweaks panel UX — not yet implemented
npx od init to scaffold a project with DESIGN.md
Plugin SDK + od plugin {add,list,remove,test,publish} CLI
Figma / Pencil → React / Next / Vue migration plugins (alpha)
Refresh-existing-codebase plugin (point at a git repo + DESIGN.md)

Phased delivery → docs/roadmap.md.

Community

Real people behind every channel.

💬 Discord — daily chat, plugin sharing, questions → discord.gg/9ptkbbqRu
🐦 X / Twitter — release notes, milestones, behind the scenes → @OpenDesignHQ
🗣️ GitHub Discussions — deep Q&A, RFCs, “show your work” → Discussions
🐛 GitHub Issues — bug reports, feature requests → Issues

The good-first-issue and help-wanted labels are the easiest way in.

Contributing

Open Design keeps moving because contributors — designers, engineers, prompt authors — keep showing up. Many of the most-used skills, design systems, and plugins were written by people outside the core team.

🎯 Where to start (max leverage, min change)

Want to ship…	How	Where
A new skill	Drop a folder with `SKILL.md` + `assets/` + `references/`	`skills/` · spec in `docs/skills-protocol.md`
A new design system	Drop a `DESIGN.md` using the 9-section schema	`design-systems/<brand>/`
A new plugin	Drop `open-design.json` + manifest under a category folder	`plugins/community/` · spec in `plugins/spec/SPEC.md` · agent dev guide in `plugins/spec/AGENT-DEVELOPMENT.md`
Support a new coding-agent CLI	One adapter entry + stream parser	`apps/daemon/src/agents.ts`
Fix a bug or polish UI	Browse the `good-first-issue` label	Issues →
Translate the docs	Update the `README.<lang>.md` files	`TRANSLATIONS.md`

🤖 Contributing as an agent

If you are the agent reading this, the fastest path is:

# 1. Boot locally
git clone https://github.com/nexu-io/open-design.git
cd open-design && corepack enable && pnpm install
pnpm tools-dev run web

# 2. Find a good-first-issue and assign yourself
gh issue list --label "good first issue" --state open --limit 20
gh issue develop <number>   # create a branch and worktree

# 3. Make the change, run the checks
pnpm guard && pnpm typecheck
pnpm --filter @open-design/<package> test

# 4. Open the PR
gh pr create --fill

Full agent-friendly contribution flow, code style, and PR bar → CONTRIBUTING.md (Deutsch · Français · 简体中文 · 日本語 · Português).

🏅 Open Design Fellow program

We’re recruiting Open Design Fellows around the world — Fellows shape the product alongside the core team, represent Open Design officially in their region, and grow the community locally, backed by funded support ($1,000 / MR), free LLM credits, and a direct review track. Details → MAINTAINERS.md and the announcement on Discord.

Maintainers

They carry a lot of the load — daily maintenance, review, and community support.

_{@Nagendhra-web}
_Maintainer

_@Sid-Qin
_Maintainer

_@YOMXXX
_Maintainer

Maintainer rules, promotion criteria, and the exit protocol → MAINTAINERS.md (also Deutsch · Français · 简体中文 · 日本語 · Português).

Contributors

Thanks to everyone who has taken part — code, docs, feedback, a sharp issue, a new skill, a new design system.

Repository activity

The SVG above is regenerated daily by .github/workflows/metrics.yml using lowlighter/metrics.

Star us

If this saved you thirty minutes, give it a ★. Stars don’t pay rent — but they tell the next designer, agent, and contributor that this experiment is worth their attention. One click, three seconds, a real signal.

References & lineage

Project	Role
Claude Design	The closed-source product this repo is the open-source alternative to.
`alchaincyf/huashu-design`	The design-philosophy compass — junior-designer workflow, brand-asset protocol, anti-AI-slop checklist, five-dimensional critique.
`op7418/guizang-ppt-skill`	The magazine-style web PPT skill, bundled verbatim under `design-templates/guizang-ppt/`. Default for deck mode.
`lewislulu/html-ppt-skill`	The HTML PPT Studio family — 15 deck templates, 36 themes, 31 page layouts, animation runtime, magnetic-card presenter mode.
`OpenCoworkAI/open-codesign`	The first open-source Claude Design alternative; UX patterns we borrow (streaming-artifact loop, sandboxed iframe, live agent panel).
`multica-ai/multica`	The daemon + adapter architecture — PATH-scan agent detection, local daemon as the only privileged process.
`VoltAgent/awesome-design-md`	Source of the 9-section `DESIGN.md` schema and 70 product systems.
`bergside/awesome-design-skills`	Source of the 57 design skills added under `design-systems/`.
`heygen-com/hyperframes`	The HTML→MP4 motion-graphics framework, integrated as the first-class `hyperframes-html` in Open Design.
Claude Code skills	The `SKILL.md` convention we adopt verbatim.

Detailed provenance → docs/references.md.

License

Apache-2.0. The bundled design-templates/guizang-ppt/ retains its original LICENSE (MIT, @op7418). The bundled design-templates/html-ppt/ retains its original LICENSE (MIT, @lewislulu).