diff --git a/phpcs.xml.dist b/phpcs.xml.dist
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--- /dev/null
+++ b/phpcs.xml.dist
@@ -0,0 +1,61 @@
+<?xml version="1.0"?>
+<ruleset name="WP-CLI">
+	<description>Custom ruleset for WP-CLI</description>
+
+	<!-- For help in understanding this file: https://github.com/squizlabs/PHP_CodeSniffer/wiki/Annotated-ruleset.xml -->
+	<!-- For help in using PHPCS: https://github.com/squizlabs/PHP_CodeSniffer/wiki/Usage -->
+
+	<!-- What to scan -->
+	<file>.</file>
+	<!-- Ignoring Files and Folders:
+		https://github.com/squizlabs/PHP_CodeSniffer/wiki/Advanced-Usage#ignoring-files-and-folders -->
+	<exclude-pattern>*/.git/*</exclude-pattern>
+	<exclude-pattern>*/ci/*</exclude-pattern>
+	<exclude-pattern>*/features/*</exclude-pattern>
+	<exclude-pattern>*/packages/*</exclude-pattern>
+	<exclude-pattern>*/tests/*</exclude-pattern>
+	<exclude-pattern>*/utils/*</exclude-pattern>
+	<exclude-pattern>*/vendor/*</exclude-pattern>
+
+	<!-- How to scan -->
+	<arg value="sp"/> <!-- Show sniff and progress -->
+	<arg name="colors"/> <!-- Show results with colors -->
+	<arg name="extensions" value="php"/> <!-- Limit to PHP files -->
+
+	<!-- Rules: Check PHP version compatibility - see
+		https://github.com/PHPCompatibility/PHPCompatibilityWP -->
+	<rule ref="PHPCompatibilityWP">
+		<!-- Polyfill package is used so array_column() is available for PHP 5.4- -->
+		<exclude name="PHPCompatibility.PHP.NewFunctions.array_columnFound"/>
+		<!-- Both magic quotes directives set in wp-settings-cli.php to provide consistent starting point. -->
+		<exclude name="PHPCompatibility.PHP.DeprecatedIniDirectives.magic_quotes_runtimeDeprecatedRemoved"/>
+		<exclude name="PHPCompatibility.PHP.DeprecatedIniDirectives.magic_quotes_sybaseDeprecatedRemoved"/>
+	</rule>
+
+	<!-- For help in understanding this testVersion:
+		https://github.com/PHPCompatibility/PHPCompatibility#sniffing-your-code-for-compatibility-with-specific-php-versions -->
+	<config name="testVersion" value="5.3-"/>
+
+	<!-- Ignore php_uname mode issue, we're conditionally providing a callback -->
+	<rule ref="PHPCompatibility.PHP.NewFunctionParameters.php_uname_modeFound">
+		<exclude-pattern>*/php/commands/src/CLI_Command.php</exclude-pattern>
+	</rule>
+
+	<!-- Rules: WordPress Coding Standards - see
+		https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards -->
+	<rule ref="WordPress-Core">
+		<exclude name="Squiz.PHP.DisallowMultipleAssignments.Found" />
+		<exclude name="WordPress.NamingConventions.ValidVariableName.NotSnakeCaseMemberVar" />
+		<exclude name="WordPress.NamingConventions.ValidVariableName.MemberNotSnakeCase" />
+		<exclude name="WordPress.NamingConventions.ValidVariableName.NotSnakeCase" />
+	</rule>
+
+	<!-- For help in understanding these custom sniff properties:
+		https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards/wiki/Customizable-sniff-properties -->
+	<rule ref="WordPress.Files.FileName">
+		<properties>
+			<property name="strict_class_file_names" value="false"/>
+		</properties>
+		<exclude name="WordPress.Files.FileName.NotHyphenatedLowercase" />
+	</rule>
+</ruleset>