ruleset.xml

<?xml version="1.0"?>
<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="ExternalFilesMediaLibrary" namespace="ExternalFilesMediaLibraryCS\ExternalFilesMediaLibrary" xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/squizlabs/PHP_CodeSniffer/master/phpcs.xsd">

    <description>External Files for Media Library Coding Standards</description>

    <!--
    Included via WordPress-Extra.
    <rule ref="WordPress-Core"/>
    -->
    <rule ref="WordPress-Docs"/>
    <rule ref="WordPress-Extra"/>
    <rule ref="WordPress">
        <exclude name="WordPress.DB.SlowDBQuery.slow_db_query_meta_query"/>
        <exclude name="WordPress.DB.SlowDBQuery.slow_db_query_tax_query"/>
        <!-- Exclude direkt db query warnings -->
        <exclude name="WordPress.DB.DirectDatabaseQuery"/>
        <!-- Exclude base64-warnings for backwards-compatibility with older plugin-version, but it also disabled serialize-warning .. -->
        <exclude name="WordPress.PHP.DiscouragedPHPFunctions"/>
        <!-- Excluded in favour to match PSR-4-namings of classes. -->
        <exclude name="WordPress.Files.FileName"/>
        <!-- Exclude override of globals -->
        <exclude name="WordPress.WP.GlobalVariablesOverride"/>
    </rule>

</ruleset>