Kiro

OpenDesign

Design With
Kiro in
OpenDesign.

How to design interfaces with Kiro in OpenDesign: a spec before any code, steering files for copy and error handling, one checkout task from brief to reviewed file, and the limits to know before you start.

Download OpenDesign Go to setup

Illustrative interface · not a captured product session

THREE WAYS INTO THIS KIRO GUIDE

Choose Where to Start With Kiro

THIS GUIDE · UI DESIGN

Build a Product Interface With Kiro

This guide: brief, references, design rules and a reviewed HTML result.

Read this guide SETUP

Set Up Kiro From Zero

Here is the full path from a clean machine to a Kiro CLI that can build and verify UI.

Go to setup COMPARISON

Compare Kiro With Other Agents

How Kiro differs from Codex, Claude Code, Cursor for design work, and when to choose another workflow.

See the comparison

On This Page Example

Example
Fit
Compatibility
Setup
Workflow
Resources
Limitations
FAQ

One Complete Kiro Design Task

A Kiro 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 Kiro run.

1Design Brief and Constraints

Brief

Design a two-page checkout from the attached spec: shipping and payment, with an order summary that stays visible. Follow the steering files for copy and error handling. Desktop and phone.

Design systemOpenDesign paper canvas: Albert Sans, one green accent
Breakpoints1440px desktop and 390px mobile, no horizontal scroll
InteractionsStep navigation, address autocomplete, card validation, promo code
OutputOne self-contained HTML file with stable data-od-id hooks

2Division of Work: You, Kiro and OpenDesign

You
Write the brief, select the design system and define the acceptance criteria.
Kiro
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.

3Kiro Artifact: The Checkout Flow at 1440px and 390px

Kiro Artifact: The Checkout Flow at 1440px and 390px — Desktop — Illustrative example

Kiro Artifact: The Checkout Flow at 1440px and 390px — Mobile — Illustrative example

4Review Before Handoff

Layout

Grid and Spacing

Form and summary on the 8px grid; the summary is sticky on desktop and collapsible on the phone.

Hierarchy

Visual Hierarchy

The question, then fields, then the button; the accent marks the current step only.

Responsive

Mobile Layout

Summary becomes a collapsed total line above the form; the button spans the width.

Interaction

Interaction Checks

Trigger an address error, apply a promo code, go back to the cart.

Fit

When Kiro Fits the Task, and When It Does Not

Kiro Fits When

Spec before code. Kiro writes requirements, a design document, and a task list first, so you correct layout and scope before the build commits.
Steering files. Your standards, conventions, and tokens travel into every run, so output works against a brand instead of a default look.
Agent hooks. Automations fire on events like a file save — a place to enforce a verification or review step without relying on memory.
MCP and free to start. Kiro CLI manages MCP servers for external context, signs in with a Builder ID, Google, GitHub, or your organization, and is free to start in preview.

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: AWS Builder ID, Google, GitHub, or AWS IAM Identity Center (no AWS account required). OpenDesign does not provide or proxy credentials.
Your team works in Cursor or Antigravity. Those agents have their own pages; the workspace is the same, the setup differs. See related agents.

Compatibility

Kiro Requirements Before You Start

This guide covers Kiro as connected through the OpenDesign desktop app. Published references checked on 6 September 2026.

Tool ScopeKiro, by Amazon

Kiro is an agentic AI from Amazon (AWS) that ships as an IDE, a CLI, and a web interface, built for spec-driven development from prototype to production. It is in preview. This page is about designing interfaces with Kiro through OpenDesign, not about Kiro’s own interface. OpenDesign’s setup notes list the available agents.

Accounts and AuthenticationAWS Builder ID, Google, GitHub, or AWS IAM

AWS Builder ID, Google, GitHub, or AWS IAM Identity Center (no AWS account required). Authenticate with your AWS Builder ID or other sign-in — 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 Kiro version: not verified here.

Connection CheckThe success signal

Follow the connection instructions shown by your installed version, then run a small task. Confirm that Kiro handled it and that the artifact opens. A download alone does not establish a working connection.

Start with the desktop app

Kiro Setup in Three Steps

Download first, complete the Kiro 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 OpenDesign

CHECKPOINT
The desktop app opens. Already installed? Move to the next step; there is no need to download again.
2
Prepare Your Kiro Connection
Follow the Kiro instructions in your installed version. Authenticate with your AWS Builder ID or other sign-in — credentials stay on your machine.
Kiro CLI documentation
# 1. Install Kiro CLI (see kiro.dev/docs/cli for the macOS/Linux/Windows command) # 2. Authenticate — opens your browser to complete sign-in kiro-cli login # choose Builder ID, Google, GitHub, or your organization # 3. Confirm you are signed in kiro-cli whoami
From the Kiro setup notes in the published guide; check the vendor documentation for the current command.
CHECKPOINT
Confirm the intended agent and account. If it is unavailable, check compatibility before trying a larger task.
3

Run One Small Kiro Task

Use a small brief so you can judge the whole loop, including one revision.

Starter brief

Build a settings screen with a profile form and a save confirmation. Use my design rules. Check it at desktop and mobile widths.

CHECKPOINT
Open 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 Kiro design workflow

The Kiro Design Workflow in Five Steps

The same checkout flow task, followed from brief to verified file. Each step lists what you provide, what Kiro 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.
- KiroReads 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.
New project · PromptKiro

You
Build the checkout from the spec: shipping and payment pages, persistent order summary. Follow the steering files. Desktop and phone.
Kiro
Understood. The spec lists “gift message” as optional. Include it on shipping, or move it to payment?
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.
- KiroLoads 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.
DESIGN.md · OpenDesignbound

background #fafafa foreground #262626 border #d9d9d9 accent #63fe13 display Albert Sans 800 radius 8px · pills 999px
3
Generate the Interface

Kiro writes a self-contained HTML file: layout, styles, interactions and stable hooks.
- YouWait, or answer a clarifying question. Nothing to configure.
- KiroPlans 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.
Project files3 files
- checkout.htmlnew
- .kiro/steeringbound
- DESIGN.mdread
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.
- KiroReads your comments on the preview and prepares the next revision.
- OpenDesignRenders the preview, exposes data-od-id targets for comments and edits.
- CheckHierarchy, contrast, overflow at 390px, focus states, and whether the accent is used sparingly.
Preview · 390pxComment mode

Comment on · summary
Collapsed total line on the phone; expand on tap.
Comment on · errors
Error copy from the steering file, inline under the field.
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.
- KiroApplies 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.
Verification · v23 of 4
- ✓Summary collapses at 390px
- ✓Inline error copy matches steering
- ✓No horizontal scroll at 390px
- Promo code flow — checked by you

Resources

Kiro Design Resources

Design Skills

The artifact types Kiro can produce in OpenDesign, one skill per type.

Browse skills Design systems

Design Systems

Brand tokens and components to bind before Kiro generates anything.

Browse systems Templates

Templates

Starting points for decks, landing pages and product screens.

Browse templates

Limitations

Kiro Limitations, Manual Checks and Fallbacks

ScopeThe Kiro CLI brings the agent to your terminal — an interactive chat session, custom agents, steering files, agent hooks, and Model Context Protocol servers. This page covers Kiro as an agent connected to OpenDesign, not every Kiro feature.
Usage LimitsUsage limits and cost follow the credential you use (AWS Builder ID, Google, GitHub, or AWS IAM Identity Center (no AWS account required)). 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 Kiro and OpenDesign

Can Kiro CLI Really Do Design Work?

Yes — with an aesthetic skill, a design system, and real reference images in context, Kiro CLI produces production-quality, responsive UI, and its spec-driven workflow keeps the build accountable to stated intent. Without that context it tends to default to a generic look, which is the gap OpenDesign fills.

Do I Need an AWS Account to Use Kiro CLI?

No — Kiro lets you sign in with an AWS Builder ID, Google, GitHub, or your organization (AWS IAM Identity Center), and you do not need an AWS account to use it. Kiro is in preview and free to start. OpenDesign never proxies your credentials either way.

What Makes Kiro CLI Good for Design Specifically?

Its spec-driven workflow: Kiro writes requirements, a design document, and a task list before it codes, so you correct layout and scope before the build commits. Steering files carry your conventions and hooks can enforce checks — but taste still comes from the design system, skill, and references you supply.

Kiro CLI or Claude Code for Frontend Design?

Both are strong. Claude Code is known for specific, codebase-aware design decisions; Kiro CLI's edge is its spec-driven, reviewable workflow with steering and hooks. Many teams use both — OpenDesign lets you switch agents without changing your design workflow.

How Do I Connect Kiro CLI to External Design Tools?

Kiro CLI manages Model Context Protocol (MCP) servers — use kiro-cli mcp to add them. An MCP server can bring real design context and tools into the agent so generated code matches the source instead of approximating it.

Start a First Design Task With Kiro

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.