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Trae CLI OpenDesign

Design With
Trae CLI in
OpenDesign.

How to design interfaces with Trae CLI in OpenDesign: the model you bring, a real browser checking each pass, one landing-page task from brief to reviewed file, and the limits to know before you start.

Download OpenDesign Go to setup
From brief to interface01 / Trae CLI
YOU BRING THE IDEA↗

“A product page we can check
in a real browser, every pass.”

Illustrative interface · not a captured product session

THREE WAYS INTO THIS TRAE CLI GUIDE

Choose Where to Start With Trae CLI

THIS GUIDE · UI DESIGN

Build a Product Interface With Trae CLI

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

Read this guide SETUP

Set Up Trae CLI From Zero

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

Go to setup COMPARISON

Compare Trae CLI With Other Agents

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

See the comparison
On This Page Example
  1. Example
  2. Fit
  3. Compatibility
  4. Setup
  5. Workflow
  6. Resources
  7. Limitations
  8. FAQ

One Complete Trae CLI Design Task

A Trae CLI 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 Trae CLI run.

1Design Brief and Constraints

Brief

Design the landing page for a documentation product: hero, a live-looking search demo, three benefits and customer logos. Verify each pass in a real browser at both widths.

  • Design systemOpenDesign paper canvas: Albert Sans, one green accent
  • Breakpoints1440px desktop and 390px mobile, no horizontal scroll
  • InteractionsSearch demo focus state, CTA states, logo row scroll
  • OutputOne self-contained HTML file with stable data-od-id hooks

2Division of Work: You, Trae CLI and OpenDesign

  • You

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

  • Trae CLI

    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.

3Trae CLI Artifact: The Product Page at 1440px and 390px

Trae CLI Artifact: The Product Page at 1440px and 390px — Desktop
Illustrative example

4Review Before Handoff

Layout

Grid and Spacing

Hero and benefits on the 8px grid; the search demo keeps a fixed height so the page does not jump.

Hierarchy

Visual Hierarchy

Headline, search demo, then benefits; the accent marks the start button only.

Responsive

Mobile Layout

Copy, then the demo, then benefits; logos scroll horizontally inside their own row.

Interaction

Interaction Checks

Focus the demo, follow both CTAs, scroll the logo row.

Fit

When Trae CLI Fits the Task, and When It Does Not

Trae CLI Fits When

  • Bring your own model. Model-agnostic by design, so you route UI work to whichever LLM provider reasons best about your frontend — and swap it later.
  • Open and config-driven. MIT-licensed and pinned in a trae_config.yaml, so agent behavior is transparent and reproducible across a team.
  • Real browser loop. File, shell, and reasoning tools let it build, run a dev server, and verify the UI across breakpoints.
  • Free to start. The agent itself is free; your only cost is your chosen provider — or nothing with a local Ollama model.

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: Your own LLM provider API key (bring your own key) — OpenAI, Anthropic, Google, OpenRouter, Doubao, Azure, or local Ollama. OpenDesign does not provide or proxy credentials.
  • Your team works in Qoder or Kimi. Those agents have their own pages; the workspace is the same, the setup differs. See related agents.

Compatibility

Trae CLI Requirements Before You Start

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

Tool ScopeTrae CLI, by ByteDance

Trae CLI is ByteDance’s open-source (MIT) terminal AI agent, shipped as the trae-agent project. It reads your codebase, edits files, and runs shell commands from natural-language tasks. This page is about designing interfaces with Trae CLI through OpenDesign, not about Trae CLI’s own interface. OpenDesign’s setup notes list the available agents.

Accounts and AuthenticationYour own LLM provider API key (BYOK) —

Your own LLM provider API key (BYOK) — OpenAI, Anthropic, Google, OpenRouter, Doubao, Azure, or local Ollama. Authenticate with your own LLM provider 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 Trae CLI version: not verified here.

Connection CheckThe success signal

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

Start with the desktop app

Trae CLI Setup in Three Steps

Download first, complete the Trae CLI setup for your installed version, then check a small result. You do not need to build OpenDesign from source to follow this path.

  1. 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. 2

    Prepare Your Trae CLI Connection

    Follow the Trae CLI instructions in your installed version. Authenticate with your own LLM provider key (BYOK) — credentials stay on your machine.

    Trae documentation 
    # 1. Get Trae CLI (trae-agent) from source — needs uv
git clone https://github.com/bytedance/trae-agent.git
cd trae-agent
uv sync --all-extras
source .venv/bin/activate

# 2. Authenticate by pointing it at your LLM provider key
#    set it in the environment (or a trae_config.yaml file)
export OPENAI_API_KEY=...        # or ANTHROPIC_API_KEY, GOOGLE_API_KEY, etc.

    From the Trae CLI 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. 3

    Run One Small Trae CLI 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 Trae CLI design workflow

The Trae CLI Design Workflow in Five Steps

The same product page task, followed from brief to verified file. Each step lists what you provide, what Trae CLI does, what OpenDesign contributes and what you check.

  1. 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.
    • Trae CLIReads 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. 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.
    • Trae CLILoads 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. 3

    Generate the Interface

    Trae CLI writes a self-contained HTML file: layout, styles, interactions and stable hooks.

    • YouWait, or answer a clarifying question. Nothing to configure.
    • Trae CLIPlans 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. 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.
    • Trae CLIReads 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.
  5. 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.
    • Trae CLIApplies 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

Trae CLI Design Resources

Skills

Design Skills

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

Browse skills Design systems

Design Systems

Brand tokens and components to bind before Trae CLI generates anything.

Browse systems Templates

Templates

Starting points for decks, landing pages and product screens.

Browse templates

Limitations

Trae CLI Limitations, Manual Checks and Fallbacks

  • ScopeIt is model-agnostic — you bring your own LLM provider key (OpenAI, Anthropic, Google, OpenRouter, Doubao, Azure, or a local Ollama model) — and its behavior is pinned in a config file you can commit. This page covers Trae CLI as an agent connected to OpenDesign, not every Trae CLI feature.
  • Usage LimitsUsage limits and cost follow the credential you use (Your own LLM provider API key — OpenAI, Anthropic, Google, OpenRouter, Doubao, Azure, or local Ollama). 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 Trae CLI and OpenDesign

Can Trae CLI Really Do Design Work?
Yes — with an aesthetic skill, a design system, and real reference context, Trae CLI produces production-quality, responsive UI, and because it is model-agnostic you can route the work to the provider that reasons best about your frontend. 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 Trae CLI?
Trae CLI itself is free and open-source (MIT). You bring your own LLM provider key, so your only cost is whatever that provider charges — or nothing if you run a local model via Ollama. OpenDesign never proxies your credentials either way.
What Makes Trae CLI Good for Design Specifically?
Two things: it is model-agnostic, so you choose the LLM provider best suited to frontend work, and it is fully open and config-driven, so its behavior is transparent and reproducible across a team. But taste still comes from the design system, skill, and references you supply.
Trae CLI or Claude Code for Frontend Design?
Both are capable. Claude Code is known for specific, codebase-aware design decisions; Trae CLI’s edge is being open-source and provider-flexible, so you are never locked to one model. Many teams use both — OpenDesign lets you switch agents without changing your design workflow.
What Does OpenDesign Need to Run Trae CLI?
OpenDesign drives Trae CLI’s trae-cli binary over the Agent Client Protocol (ACP) and uses your configured LLM provider key. You select Trae CLI as your agent, point it at a provider, and OpenDesign supplies the curated design context around it.

Start a First Design Task With Trae CLI

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.

Where are you in the setup?
Download OpenDesign See the setup checklist

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