How to build Roblox UI with AI

Roblox UI is tedious to build by hand. A single menu can mean a ScreenGui, a dozen Frames, UIListLayouts, UIPadding, UICorners, TextLabels, and a LocalScript to wire up the buttons. An AI agent that can create instances directly turns a description into that whole tree.

What you can describe

Good UI prompts cover four things:

Purpose. What is the screen for? A shop, an inventory, a health bar, a settings menu.
Contents. The elements and the information they show.
Layout. Where it sits and how it is arranged.
Behavior. What happens when the player presses each button.

Example:

Build a shop menu opened with a Shop button at the bottom left. A centered panel lists four upgrades in a grid. Each card shows a name, a price, and a Buy button. Buying subtracts coins and plays no sound yet.

Start clean, then add style

Kiwari builds UI in a clean, neutral style by default. That is deliberate: it gives you a readable baseline that is easy to restyle. When you want a theme such as rounded or studded, say so in the prompt or set a place theme, and the agent will carry it across screens so they match.

Build the structure first

Ask for layout before decoration. A solid structure uses:

UIListLayout and UIGridLayout instead of hand-placed positions.
UIPadding for consistent spacing.
Scale over offset where possible, so the UI adapts to different screens.
UIAspectRatioConstraint for elements that must keep a shape.

If the structure is right, restyling later is a quick change.

Make it work on every screen

Roblox games run on phones, tablets, consoles, and desktops. Tell the agent your target devices. Ask it to use scale-based sizing and to check the result at a small and a large size. Mobile is where most UI problems show up, such as buttons that are too small to tap or panels that run off the edge.

Check it visually

UI is a visual job, so look at it. Kiwari can render your UI and take a screenshot to judge spacing, alignment, and overlap. You can also attach a reference image and ask it to match the layout. After a build, ask: "Take a screenshot and tell me what looks off." It often catches clipped text or uneven padding that a quick glance misses.

Wire up behavior

Buttons need scripts. A good request names the event and the effect: "When Buy is pressed, send a RemoteEvent to the server. The server checks the player has enough coins, subtracts the price, and sends back the new total." Ask for server validation on anything that touches currency or inventory, since the client can never be trusted.

Iterate in small steps

Ask for the layout of one screen.
Review it in Studio.
Ask for adjustments: "More space between cards, make the title larger."
Ask for the behavior.
Playtest it.

Short, specific follow-ups beat starting over.

Common problems

Text that does not fit. Ask for TextScaled with a UITextSizeConstraint.
Elements overlapping. Ask the agent to use layouts instead of fixed positions.
A UI that vanishes. Check ResetOnSpawn and whether the ScreenGui is in StarterGui.
Inconsistent style. Ask it to reuse the same colors and corner radius as the existing screens.

Tips

Provide a reference screenshot when you have a style in mind.
Name your colors once, for example "dark gray panels with a green accent", and reuse the phrase.
Keep one screen per prompt.
Ask it to name instances clearly so scripts stay readable.

Start for free and describe your first menu.

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