@modelcontextprotocol/ext-apps - v0.0.1
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    Interface McpUiInitializeResult

    Initialization result returned from Host to Guest UI.

    Contains the negotiated protocol version, host information, capabilities, and rich context about the host environment.

    McpUiInitializeRequest

    interface McpUiInitializeResult {
        hostCapabilities: McpUiHostCapabilities;
        hostContext: McpUiHostContext;
        hostInfo: {
            icons?: { mimeType?: string; sizes?: string[]; src: string }[];
            name: string;
            title?: string;
            version: string;
            websiteUrl?: string;
        };
        protocolVersion: string;
        [key: string]: unknown;
    }

    Indexable

    • [key: string]: unknown

      Index signature required for MCP SDK Protocol class compatibility. Note: The schema intentionally omits this to enforce strict validation.

    Index

    Properties

    hostCapabilities hostContext hostInfo protocolVersion

    Properties

    hostCapabilities: McpUiHostCapabilities

    Features and capabilities provided by the host

    hostContext: McpUiHostContext

    Rich context about the host environment

    hostInfo: {
        icons?: { mimeType?: string; sizes?: string[]; src: string }[];
        name: string;
        title?: string;
        version: string;
        websiteUrl?: string;
    }

    Host application identification and version

    protocolVersion: string

    Negotiated protocol version string (e.g., "2025-11-21")

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