๐จ Best DeepSeek Harness Design Plugin. The open-source Claude Design alternative. ๐ฅ๏ธ Local-first desktop app. ๐ผ๏ธ Your coding agent becomes the design engine: prototypes, landing pages, dashboards, slides, images & video โ real files, HTML/PDF/PPTX/MP4 export. ๐ค Claude Code / Codex / Cursor / DeepSeek Harness / OpenCode & 20+ CLIs via BYOK.
Auto-invoked ships a router so the right skill fires automatically as you prompt. No remembering which skill to call.
Normal is the plain upstream plugin, installed as-is. You invoke its skills yourself.
The plugin> /plugin marketplace add nexu-io/open-design> /plugin install open-design@open-designAuto-invocation> /plugin marketplace add flowy-sh/flowy-core> /plugin install flowy-core> /plugin install flowy-open-design
Repo: nexu-io/open-design
What's inside
โก OpenDesign Cloud โ the official model service. One recharge to use both agent and image models inside OpenDesign: GPT, Claude, and DeepSeek for agents; GPT Image 2.0, Seedream 5.0 Pro, and Nano Banana 2.0 for images.
๐ DeepSeek V4 Flash and V4 Pro are now available. Put top-tier intelligence to work across prototypes, decks, design systems, and everyday agent tasks. OpenDesign members can use both models without limits for two weeks, directly inside the app.
๐งฉ DeepSeek Harness is now supported. Connect DeepSeek's official
dshagent harness to OpenDesign as a native runtime, with structured thinking, tool calls, model discovery, cancellation, and session resume. Generated files stay in the OpenDesign workflow for live preview and delivery.
๐จ The open-source Claude Design alternative. ย ๐ฅ๏ธ Local-first native desktop app for macOS and Windows. ย โก Composable skills, brand-grade DESIGN.md design systems, and ready-to-use plugins. ย ๐ผ๏ธ Generates web ยท desktop ยท mobile prototypes, live dashboards / artifacts, decks, images, video, plus HyperFrames motion graphics. ๐ Sandboxed iframe preview ยท HTML / PDF / PPTX / MP4 export. ย ๐ค Runs on DeepSeek Harness (dsh) ยท Claude Code ยท OpenClaw ยท Codex ยท Cursor ยท OpenCode ยท Qwen ยท Copilot ยท Amp ยท Hermes ยท Kimi ยท Antigravity and 26 distinct local CLI executables, or any OpenAI-compatible endpoint via BYOK.
OpenDesign is what you get when the agent-native loop Anthropic shipped with Claude Design โ discover the brief, lock the direction, stream the artifact, critique, deliver โ stops being closed and becomes a filesystem of functional skills, rendering design templates, 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 โ 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 โ already shaped by your design system, already runnable inside the agent you use every day.
A quick look at the core OpenDesign workflow. Start from Home with a brief, explore reusable skills in Plugins, and turn brand references into a Design System. Then enter a project's Studio to create and refine prototypes, decks, mobile apps, images, documents, and HyperFrames in one place.
Inside a project's Studio, the conversation, generated files, and live preview stay together across six artifact types:
OpenDesign connects to mainstream coding agents in two ways: skills, CLI, and MCP for agents that consume OD, plus native runtime adapters for agents that OD launches directly. DeepSeek Harness is a first-class native runtime through the official
dshCLI, with structured streaming, model discovery, cancellation, and session resume.
| Coding agent / platform ย ย ย ย ย ย ย ย | Status ย ย | Quick setup ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย ย |
|---|---|---|
| Claude Code | โ Supported | od mcp install claude |
| Claude Desktop | โ Supportedยน | od mcp install claude-desktop |
| Codex CLI | โ Supported | od mcp install codex |
| DeepSeek Reasonix | โ Supported | od mcp install reasonix |
| DeepSeek Harness | โ Native runtime | od agent setup deepseek-harness |
| Raven | โ Supported | od mcp install raven |
| Cursor | โ Supported | od mcp install cursor |
| VS Code + GitHub Copilot | โ Supported | od mcp install copilot |
| GitHub Copilot CLI | โ Supported | od mcp install copilot |
| OpenCode | โ Supported | od mcp install opencode |
| OpenClaw | โ Supported | od mcp install openclaw |
| Antigravity | โ Supported | od mcp install antigravity |
| Cline | โ Supported | od mcp install cline |
| Trae | โ Supported | od mcp install trae |
| Kimi CLI | โ Supported | od mcp install kimi |
| Kiro | โ Supported | od mcp install kiro |
| Pi Agent | โ Supported | od mcp install pi |
| Mistral Vibe CLI | โ Supported | od mcp install vibe |
| Hermes Agent | โ Supported | od mcp install hermes |
For DeepSeek Harness, install the official dsh CLI first, then select it in OpenDesign or run od agent setup deepseek-harness to install/repair OD's connection component. For MCP integrations: od mcp install <agent> --print for a dry-run preview ยท --uninstall to remove ยท full list with od mcp install --help.
ยน Automatic MCP configuration for Claude Desktop is currently supported on macOS and Windows only.
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) โ paste baseUrl + apiKey + model, with presets for OpenAI, Atlas Cloud, Anthropic, Azure OpenAI, Google Gemini, Ollama, LM Studio, vLLM, or any OpenAI-compatible endpoint. Atlas Cloud uses https://api.atlascloud.ai/v1 with your own key and OpenAI-compatible model ids such as qwen/qwen3.5-flash. Per-target SSRF protection blocks internal IPs / link-local / CGNAT at the daemon edge.
Showing a partial view of a very large repo.
View @nexu-ioโs profileFrom the team behind Open Design โ 40kโ ยท 200+ contributors, production-grade and iterating faster. html-anything is the focused agent-era HTML editor; if it clicks for you, Open Design is where the same team ships at scale.
@nexu-ioA project in the nexu.io ยท Open Design family โ the same team's take on motion. If motion-anything clicks for you, Open Design is where the full agent-era design studio lives. Describe the feeling โ your AI ships the animation.
@nexu-io๐จ Open-source AI slide studio inside Codex: image-native decks, every slide a full visual canvas. โก 10+ high-quality slides in ~4โ5 minutes โ Fast mode renders every page in parallel. ๐ Watch the whole chain live: research โ outline โ style โ render โ edit โ present โ export PDF/PPTX. ๐ฅ๏ธ Browser-first ยท zero API keys ยท durable projects.
@nexu-ioFAQ
open-design is a Claude Code plugin of 164 hand-picked skills with a FLOW.md router. Install it once and the right skill fires as you prompt, with no slash command to remember. It is built for content work. It includes od-contribute, 8-bit-orbit-video-template, ad-creative. Free and open source.
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