Interface: UIResourcePart

Properties

optional meta: Record<string, unknown>;

Reserved for future passthrough of the resource/tool _meta.ui (e.g. frame-size hints). Currently always undefined — nothing populates this field yet.

resource: object;

The ui:// resource object in MCP-native shape — fed straight to the renderer.

optional blob: string;

mimeType: string;

optional text: string;

uri: string;

optional serverId: string;

Pool prefix / config key — routes interactive calls to the right MCP server.

toolCallId: string;

Links the widget to the originating tool call — correlates it with the sibling ToolCallPart/ToolResultPart in the same message.

toolName: string;

Server-native (unprefixed) MCP tool name whose UI this resource renders. Required by the renderer (@mcp-ui/client's AppRenderer toolName prop).

type: "ui-resource";