ui-runtime

@bedrock-core/ui-runtime is the core rendering and component system for building Bedrock UI.

It provides the JSX component primitives, hook system, and the API surface used to mount and manage your UI trees.

Sections

Section	Description
Components	Primitive building blocks: Panel, Text, Button, Image, Fragment
Hooks	Reactive state and lifecycle: useState, useEffect, useEvent, useReducer, and more
API	Top-level functions: render, createContext

Experimental APIs

caution

The following exports are experimental and may change or be removed. They have known limitations in multi-addon worlds.

Export	Description
ItemRenderer	Renders an item icon. Requires a manual ItemAuxContext wrapping the component tree.
ItemAuxContext	Context that supplies the typeId → packed-aux map consumed by ItemRenderer.
ItemAuxMap	Type alias for Record<string, number> — the map you build and provide.