What it is
OpenDesign is a collaborative design agent workspace licensed under Apache 2.0 and positioned as an open-source Claude Design alternative. You start with a brief, and your coding agent (or OpenDesign Cloud) builds a prototype that follows your design system. It ships skills, design templates, design systems and plugins, and it connects to coding agents via skills/CLI/MCP or native runtime adapters such as DeepSeek Harness.
Who it's for
- Developers who already use a coding agent CLI (Claude Code, Codex, Cursor, OpenCode, DeepSeek Harness, etc.) and want it to produce design artifacts
- Teams that want an inspectable, self-hostable alternative to Claude Design
- Designers and teams who want brand-consistent output driven by a DESIGN.md and design systems
- Users who want to bring their own API key via the BYOK proxy rather than install a CLI
Requirements
Requirements
- macOS (Apple Silicon or Intel) or Windows (x64) for the prebuilt desktop app; Linux currently requires running from source
- A coding-agent CLI on your PATH, or a BYOK API key (baseUrl + apiKey + model) for the proxy
- For DeepSeek Harness: the official dsh CLI installed first
- Claude Desktop automatic MCP configuration works on macOS and Windows only
Setup
Download the desktop app
Recommended zero-config route: no Node, no pnpm, no clone. Download for macOS or Windows from open-design.ai or GitHub Releases. The app auto-detects coding-agent CLIs on your PATH. No prebuilt Linux artifact is published; run from source instead.
Install into your coding agent (no UI)
Use OpenDesign as a skill/plugin/MCP server inside your agent. Replace <agent> with one of: claude, codex, reasonix, raven, cursor, copilot, openclaw, antigravity, pi, vibe, hermes, cline, kimi, kiro, trae, opencode.
bashod mcp install <agent>Hosted curl-based install
Equivalent hosted wrapper around od mcp install.
bashcurl -fsSL https://open-design.ai/install.sh | sh -s <agent>Set up DeepSeek Harness
Install the official dsh CLI first, then select it in OpenDesign or run this command to install/repair OD's connection component.
bashod agent setup deepseek-harness
Examples
Install MCP into Claude Code
bashod mcp install claudeWhat it does: Quick setup command from the compatibility table for Claude Code.
Preview an MCP install without changing anything
bashod mcp install <agent> --printWhat it does: Dry-run preview; --uninstall removes the integration and od mcp install --help lists all agents.
Connect DeepSeek Harness as native runtime
bashod agent setup deepseek-harnessWhat it does: Installs or repairs OD's connection component for the dsh agent harness.
Pros & cons
Pros
- Pro:Model- and agent-agnostic: works with 20+ coding-agent CLIs and offers a BYOK proxy with presets for several providers
- Pro:Real deliverables: decks export to HTML, PDF, PPTX, ZIP or Markdown, and HyperFrames renders HTML to MP4
- Pro:Open-source (Apache 2.0) with shipped design systems, skills, templates and plugins that can be inspected and adapted
- Pro:Local-first desktop apps for macOS and Windows, with SSRF protection on the BYOK proxy
Cons
- Con:No prebuilt Linux desktop release; Linux users must run from source
- Con:On macOS the bare od command may resolve to Apple's /usr/bin/od, requiring the Settings → MCP server snippet instead
- Con:Product analytics and session replay are consent-gated, but scrubbed safety and reliability telemetry is always on
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