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

    Capabilities supported by the host application.

    Hosts declare these capabilities during the initialization handshake. Guest UIs can check capabilities before attempting to use specific features.

    const result = await app.connect(transport);
    if (result.hostCapabilities.openLinks) {
      await app.sendOpenLink({ url: "https://example.com" });
    }

    McpUiInitializeResult for the initialization result that includes these capabilities

    interface McpUiHostCapabilities {
        experimental?: {};
        logging?: {};
        openLinks?: {};
        serverResources?: { listChanged?: boolean };
        serverTools?: { listChanged?: boolean };
    }
    Index

    Properties

    experimental? logging? openLinks? serverResources? serverTools?

    Properties

    experimental?: {}

    Experimental features (structure TBD)

    logging?: {}

    Host accepts log messages via app.App.sendLog

    openLinks?: {}

    Host supports opening external URLs via app.App.sendOpenLink

    serverResources?: { listChanged?: boolean }

    Host can proxy resource reads to the MCP server

    Type Declaration

    • OptionallistChanged?: boolean

      Host supports resources/list_changed notifications

    serverTools?: { listChanged?: boolean }

    Host can proxy tool calls to the MCP server

    Type Declaration

    • OptionallistChanged?: boolean

      Host supports tools/list_changed notifications

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