FURTHER READING
Further Reading for Gemini
Tutorials, documentation and walkthroughs for designing with Gemini, as listed in the published guide.
Gemini 
OpenDesign Design With
Gemini in
OpenDesign.
How to design interfaces with Gemini CLI in OpenDesign: a whiteboard photo as the reference, GEMINI.md as the rulebook, one operations-dashboard task from brief to reviewed file, and the limits to know before you start.
From brief to interface01 / Gemini
YOU BRING THE IDEA↗
“From a whiteboard photo
to a dashboard we can read.”
THREE WAYS INTO THIS GEMINI GUIDE
Choose Where to Start With Gemini
THIS GUIDE · UI DESIGN
Build a Product Interface With Gemini
This guide: brief, references, design rules and a reviewed HTML result.
Read this guide SETUPSet Up Gemini From Zero
Here is the full path from a clean machine to a Gemini CLI that can build and verify UI.
Go to setup COMPARISONCompare Gemini With Other Agents
How Gemini differs from Codex, Claude Code, Cursor for design work, and when to choose another workflow.
See the comparisonOn This Page Example
One Complete Gemini Design Task
A Gemini Design Task, From Brief to Interface
A single task, shown end to end: the brief and constraints you hand over, the artifact that comes back, and the checks you still run before it is done. The interface below is an illustrative example built for this page, not a recorded Gemini run.
1Design Brief and Constraints
BriefDesign an operations dashboard from the attached whiteboard photo: four headline numbers, a weekly volume chart and a queue of incidents. One screen on desktop, a scrollable summary on a phone.
- Design systemOpenDesign paper canvas: Albert Sans, one green accent
- Breakpoints1440px desktop and 390px mobile, no horizontal scroll
- InteractionsDate range, incident filters, keyboard navigation through the queue
- OutputOne self-contained HTML file with stable
data-od-idhooks
2Division of Work: You, Gemini and OpenDesign
- You
Write the brief, select the design system and define the acceptance criteria.
- Gemini
Plans the layout, writes the HTML, CSS and JavaScript and revises it on request.
- OpenDesign
Provides the design system and skill, renders the preview and stores every version as a file in the project.
- Review
Visual hierarchy, spacing on the 8px grid, both breakpoints and every interaction are checked before handoff.
3Gemini Artifact: The Operations Dashboard at 1440px and 390px
4Review Before Handoff
Layout
Grid and Spacing
Four cards, chart and queue share one 8px grid; nothing overlaps at 1440 or 390.
Hierarchy
Visual Hierarchy
Headline numbers read first, then the chart, then the queue; the accent marks one bar and one critical pill.
Responsive
Mobile Layout
Two numbers per row, chart below, queue as a list; the date range folds into a sheet.
Interaction
Interaction Checks
Switch the range, filter to critical, arrow through the queue.
Fit
When Gemini Fits the Task, and When It Does Not
Gemini Fits When
- Multimodal screenshot → UI. Strong image understanding turns a reference image into responsive markup and checks the result against it.
- 1M-token context. A whole design system, component library, and reference set fit at once, so output reuses your real primitives.
- GEMINI.md + MCP. Context files carry your conventions; the Figma MCP server brings real design context into code.
- Open and free to start. Apache-2.0 and a generous free tier via a Google account, with BYOK via the Gemini API.
Choose Another Workflow When
- You need editable vector files. The artifact is HTML, not an editable design document. Check a separate vector workflow for your required asset format.
- You have no reference and no constraints. Without a design system or examples the output tends toward a generic look; write the brief first.
- You do not have the credential this agent needs. Required: Google account (free tier) or Gemini API key (bring your own key). OpenDesign does not provide or proxy credentials.
- Your team works in Antigravity or Claude Code. Those agents have their own pages; the workspace is the same, the setup differs. See related agents.
Compatibility
Gemini Requirements Before You Start
This guide covers Gemini as connected through the OpenDesign desktop app. Published references checked on 6 September 2026.
Tool ScopeGemini, by Google
Gemini CLI is Google’s open-source (Apache-2.0) terminal AI agent. It reads your codebase, edits files, runs commands, fetches the web, and grounds answers with Google Search. This page is about designing interfaces with Gemini through OpenDesign, not about Gemini’s own interface. OpenDesign’s setup notes list the available agents.
Accounts and AuthenticationGoogle account (free tier) or Gemini API
Google account (free tier) or Gemini API key (BYOK). Authenticate with your Google account or Gemini API key (BYOK) — credentials stay on your machine. This page does not promise a quota or price.
System and VersionsDesktop app or source
Check the download page for desktop builds. The Node.js and pnpm requirements in the source quickstart apply to running from source, not to installing a desktop package. Minimum compatible Gemini version: not verified here.
Connection CheckThe success signal
Follow the connection instructions shown by your installed version, then run a small task. Confirm that Gemini handled it and that the artifact opens. A download alone does not establish a working connection.
Start with the desktop app
Gemini Setup in Three Steps
Download first, complete the Gemini setup for your installed version, then check a small result. You do not need to build OpenDesign from source to follow this path.
- 1
Download the OpenDesign Desktop App
Choose the package for your computer, install it and open the app.
Download OpenDesignCHECKPOINTThe desktop app opens. Already installed? Move to the next step; there is no need to download again. - 2
Prepare Your Gemini Connection
Follow the Gemini instructions in your installed version. Authenticate with your Google account or Gemini API key (BYOK) — credentials stay on your machine.
Gemini CLI documentation# 1. Install Gemini CLI (Node 20+) npm install -g @google/gemini-cli # or run without installing: npx https://github.com/google-gemini/gemini-cli # 2. Start it in your project and authenticate on first run cd your-project gemini # sign in with your Google account, or set GEMINI_API_KEYFrom the Gemini setup notes in the published guide; check the vendor documentation for the current command.
CHECKPOINTConfirm the intended agent and account. If it is unavailable, check compatibility before trying a larger task. - 3
Run One Small Gemini Task
Use a small brief so you can judge the whole loop, including one revision.
Starter briefBuild a settings screen with a profile form and a save confirmation. Use my design rules. Check it at desktop and mobile widths.
CHECKPOINTOpen the result, test the save state and request one specific change. A generated file is the beginning of review, not the end.
To run OpenDesign from source, follow the technical quickstart instead.
The Gemini design workflow
The Gemini Design Workflow in Five Steps
The same operations dashboard task, followed from brief to verified file. Each step lists what you provide, what Gemini does, what OpenDesign contributes and what you check.
- 1
Design Brief
Plain language, three to six lines. Name the audience, the job of the screen and the platforms.
- YouWrite the brief; attach a reference screenshot if you have one.
- GeminiReads the brief and the project’s instruction file; asks when something is ambiguous.
- OpenDesignProvides the project, the prompt surface and the skill for the artifact type.
- CheckConfirm the brief states the acceptance criteria. Adding them now is cheaper than after generation.
- 2
Design Constraints
A design system and a few hard rules. This is what separates on-brand output from a generic look.
- YouPick a design system; state breakpoints and any must-use components.
- GeminiLoads the DESIGN.md tokens and posture rules into context before writing a line.
- OpenDesignShips the design-system library and binds the chosen one into the skill template.
- CheckThe tokens match your brand. One accent, the right fonts, the right radius.
- 3
Generate the Interface
Gemini writes a self-contained HTML file: layout, styles, interactions and stable hooks.
- YouWait, or answer a clarifying question. Nothing to configure.
- GeminiPlans the sections, writes the HTML, CSS and JavaScript, runs the file and fixes what fails.
- OpenDesignSaves the artifact into the project folder and indexes it for preview.
- CheckNothing yet. Judge the file after it is rendered, not from the source.
- 4
Preview
The file renders inside OpenDesign at the widths you asked for. This is where the design is judged.
- YouSwitch widths, click through the interactions, leave comments on elements.
- GeminiReads your comments on the preview and prepares the next revision.
- OpenDesignRenders the preview, exposes
data-od-idtargets for comments and edits. - CheckHierarchy, contrast, overflow at 390px, focus states, and whether the accent is used sparingly.
- 5
Revise and Verify
Request changes by pointing at elements in the preview. Every revision is a new file; nothing is overwritten silently.
- YouTurn comments into requests; decide when the task is done.
- GeminiApplies the changes in place and re-runs the file.
- OpenDesignKeeps versions side by side; exports an image or the HTML when you are done.
- CheckRe-check only the area that changed, then the whole page once at each breakpoint.
Resources
Gemini Design Resources
Skills Browse skills Design systems Browse systems Templates Browse templates
Design Skills
The artifact types Gemini can produce in OpenDesign, one skill per type.
Design Systems
Brand tokens and components to bind before Gemini generates anything.
Templates
Starting points for decks, landing pages and product screens.
Limitations
Gemini Limitations, Manual Checks and Fallbacks
- ScopeThis page covers Gemini as an agent connected to OpenDesign, not every Gemini feature.
- Usage LimitsUsage limits and cost follow the credential you use (Google account (free tier) or Gemini API key). This page makes no claim about free quotas.
- NetworkLocal project files do not mean offline inference. Review your agent’s provider settings and data policies before sharing sensitive inputs.
- Output Is HTMLArtifacts are HTML files, not vector design files.
- Manual ReviewAccessibility, real content, brand fit and interaction correctness are reviewed by you in the preview. Treat any self-check by the agent as a first pass.
- FallbackIf the agent is unavailable or a task fails, check the installed version’s connection instructions and authentication. Preserve the error and the last working artifact before changing configuration.
FAQ
Common Questions About Gemini and OpenDesign
Can Gemini CLI Really Do Design Work?
Yes — with an aesthetic skill, a design system, and real reference images in context, Gemini CLI produces production-quality, responsive UI, and its strong multimodal models verify output against references. Without that context it tends to default to a generic look, which is the gap OpenDesign fills.
Do I Need to Pay to Design With Gemini CLI?
No — signing in with a Google account gives a generous free tier, and you can also bring a Gemini API key (BYOK) or use Vertex AI. OpenDesign never proxies your credentials either way.
What Makes Gemini CLI Good for Design Specifically?
Two things: its models are strongly multimodal, so it reads reference screenshots well, and its 1M-token context can hold an entire design system and reference set at once. Both help — but taste still comes from the design system, skill, and references you supply.
Gemini CLI or Claude Code for Frontend Design?
Both are strong. Claude Code is known for specific, codebase-aware design decisions; Gemini CLI’s edge is multimodal understanding plus a huge context and a free tier. Many teams use both — OpenDesign lets you switch agents without changing your design workflow.
How Do I Connect Gemini CLI to Figma?
Add the Figma MCP server under mcpServers in ~/.gemini/settings.json. Gemini can then pull real design context — components, variables, layout data — so the generated code matches the source instead of approximating it.
Start a First Design Task With Gemini
Start with a small task, judge the round trip, then bring the real brief. Choose the option that matches your setup; the page does not detect it.