Roblox UI
Read ../../references/roblox-engineering.md. Preserve the project's visual language, UI architecture, and existing input abstraction before introducing new patterns.
Build for changing screens and inputs
- Separate authoritative game state from client presentation state. UI sends intent and renders server-confirmed state; it does not decide purchases, rewards, inventory, cooldowns, or progression.
- Prefer layouts, constraints, automatic sizing, and content-driven composition over scripts that continuously place pixels. Use scale and offset deliberately; test aspect ratio, text expansion, safe areas, and reserved touch controls.
- Bind gameplay actions, not device-specific keys. Support touch, keyboard and mouse, and gamepad through the project's current action layer; update prompts when the preferred input changes.
- Use activation events that work across input types. Define gamepad selection order, initial focus, focus restoration, modal trapping, back/cancel behavior, and a non-pointer path to every required action.
- Give touch controls sufficient reach and target size. Preserve legibility at small screens and distance viewing; allow localization and dynamic text to expand without clipping critical controls.
- Render from explicit state. Prefer event-driven updates and targeted reconciliation over rebuilding the full tree or polling every frame. Own and clean up connections, tweens, input bindings, and transient instances.
- Keep animation responsive and cosmetic. Do not delay authoritative actions behind a tween, and respect any project setting for reduced motion or disabled effects.
Deliverable
State the UI state owner, component boundaries, action bindings, responsive layout rules, selection behavior, lifecycle cleanup, and server interaction. Verify pure state and layout helpers locally. Give the user a compact Studio matrix covering phone, tablet, desktop, and gamepad; never run that playtest through MCP.
1---2name: roblox-ui3description: Design or review responsive Roblox interfaces across touch, keyboard, mouse, and gamepad input.4---56# Roblox UI78Read [`../../references/roblox-engineering.md`](../../references/roblox-engineering.md). Preserve the project's visual language, UI architecture, and existing input abstraction before introducing new patterns.910## Build for changing screens and inputs1112- Separate authoritative game state from client presentation state. UI sends intent and renders server-confirmed state; it does not decide purchases, rewards, inventory, cooldowns, or progression.13- Prefer layouts, constraints, automatic sizing, and content-driven composition over scripts that continuously place pixels. Use scale and offset deliberately; test aspect ratio, text expansion, safe areas, and reserved touch controls.14- Bind gameplay actions, not device-specific keys. Support touch, keyboard and mouse, and gamepad through the project's current action layer; update prompts when the preferred input changes.15- Use activation events that work across input types. Define gamepad selection order, initial focus, focus restoration, modal trapping, back/cancel behavior, and a non-pointer path to every required action.16- Give touch controls sufficient reach and target size. Preserve legibility at small screens and distance viewing; allow localization and dynamic text to expand without clipping critical controls.17- Render from explicit state. Prefer event-driven updates and targeted reconciliation over rebuilding the full tree or polling every frame. Own and clean up connections, tweens, input bindings, and transient instances.18- Keep animation responsive and cosmetic. Do not delay authoritative actions behind a tween, and respect any project setting for reduced motion or disabled effects.1920## Deliverable2122State the UI state owner, component boundaries, action bindings, responsive layout rules, selection behavior, lifecycle cleanup, and server interaction. Verify pure state and layout helpers locally. Give the user a compact Studio matrix covering phone, tablet, desktop, and gamepad; never run that playtest through MCP.
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