diff --git a/composer.json b/composer.json
index fd9d150..215ed78 100644
--- a/composer.json
+++ b/composer.json
@@ -14,8 +14,8 @@
 	],
 	"replace": {
 		"dealerdirect/phpcodesniffer-composer-installer": "*",
-		"phpcsstandards/php_codesniffer": "*",
-		"squizlabs/php_codesniffer": "*"
+		"phpcsstandards/php_codesniffer": "3.8.1",
+		"squizlabs/php_codesniffer": "3.8.1"
 	},
 	"bin": [
 		"phpcbf",
diff --git a/phpcs.phar b/phpcs.phar
new file mode 100644
index 0000000..e380913
Binary files /dev/null and b/phpcs.phar differ
diff --git a/phpcs.phar.asc b/phpcs.phar.asc
new file mode 100644
index 0000000..96748ff
Binary files /dev/null and b/phpcs.phar.asc differ
diff --git a/phpcs.xsd b/phpcs.xsd
new file mode 100644
index 0000000..d93dd86
--- /dev/null
+++ b/phpcs.xsd
@@ -0,0 +1,136 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" attributeFormDefault="unqualified" elementFormDefault="qualified">
+
+    <xs:element name="ruleset">
+        <xs:complexType>
+            <xs:choice minOccurs="0" maxOccurs="unbounded">
+                <xs:element name="description" type="xs:string" maxOccurs="1" minOccurs="0"></xs:element>
+                <xs:element name="config" maxOccurs="unbounded" minOccurs="0">
+                    <xs:complexType>
+                        <xs:attribute name="name" type="xs:string" use="required"></xs:attribute>
+                        <xs:attribute name="value" type="xs:string" use="required"></xs:attribute>
+                        <xs:attributeGroup ref="applySelectively"/>
+                    </xs:complexType>
+                </xs:element>
+                <xs:element name="file" maxOccurs="unbounded" minOccurs="0">
+                    <xs:complexType>
+                        <xs:simpleContent>
+                            <xs:extension base="xs:string">
+                                <xs:attributeGroup ref="applySelectively"/>
+                            </xs:extension>
+                        </xs:simpleContent>
+                    </xs:complexType>
+                </xs:element>
+                <xs:element name="exclude-pattern" type="patternType" maxOccurs="unbounded" minOccurs="0"></xs:element>
+                <xs:element name="arg" maxOccurs="unbounded" minOccurs="0">
+                    <xs:complexType>
+                        <xs:attribute name="name" type="xs:string"></xs:attribute>
+                        <xs:attribute name="value" type="xs:string"></xs:attribute>
+                        <xs:attributeGroup ref="applySelectively"/>
+                    </xs:complexType>
+                </xs:element>
+                <xs:element name="ini" maxOccurs="unbounded" minOccurs="0">
+                    <xs:complexType>
+                        <xs:attribute name="name" type="xs:string" use="required"></xs:attribute>
+                        <xs:attribute name="value" type="xs:string" use="required"></xs:attribute>
+                        <xs:attributeGroup ref="applySelectively"/>
+                    </xs:complexType>
+                </xs:element>
+                <xs:element name="autoload" type="xs:string" maxOccurs="unbounded" minOccurs="0"></xs:element>
+                <xs:element name="rule" type="ruleType" maxOccurs="unbounded" minOccurs="0"></xs:element>
+            </xs:choice>
+            <xs:attribute name="name" type="xs:string"></xs:attribute>
+            <xs:attribute name="namespace" type="xs:string"></xs:attribute>
+        </xs:complexType>
+    </xs:element>
+
+    <xs:complexType name="ruleType">
+        <xs:choice minOccurs="0" maxOccurs="unbounded">
+            <xs:element name="exclude" maxOccurs="unbounded" minOccurs="0">
+                <xs:complexType>
+                    <xs:attribute name="name" type="xs:string" use="required"></xs:attribute>
+                    <xs:attributeGroup ref="applySelectively"/>
+                </xs:complexType>
+            </xs:element>
+            <xs:element name="message" type="xs:string" maxOccurs="1" minOccurs="0"></xs:element>
+            <xs:element name="severity" maxOccurs="1" minOccurs="0">
+                <xs:complexType>
+                    <xs:simpleContent>
+                        <xs:extension base="xs:integer">
+                            <xs:attributeGroup ref="applySelectively"/>
+                        </xs:extension>
+                    </xs:simpleContent>
+                </xs:complexType>
+            </xs:element>
+            <xs:element name="type" maxOccurs="1" minOccurs="0">
+                <xs:complexType>
+                    <xs:simpleContent>
+                        <xs:extension base="messageType">
+                            <xs:attributeGroup ref="applySelectively"/>
+                        </xs:extension>
+                    </xs:simpleContent>
+                </xs:complexType>
+            </xs:element>
+            <xs:element name="exclude-pattern" type="patternType" maxOccurs="unbounded" minOccurs="0"></xs:element>
+            <xs:element name="include-pattern" type="patternType" maxOccurs="unbounded" minOccurs="0"></xs:element>
+            <xs:element name="properties" type="propertiesType" maxOccurs="1" minOccurs="0"></xs:element>
+        </xs:choice>
+        <xs:attribute name="ref" type="xs:string" use="required"></xs:attribute>
+        <xs:attributeGroup ref="applySelectively"/>
+    </xs:complexType>
+
+    <xs:complexType name="patternType">
+        <xs:simpleContent>
+            <xs:extension base="xs:string">
+                <xs:attribute name="type">
+                    <xs:simpleType>
+                        <xs:restriction base="xs:string">
+                            <xs:enumeration value="relative"></xs:enumeration>
+                        </xs:restriction>
+                    </xs:simpleType>
+                </xs:attribute>
+                <xs:attributeGroup ref="applySelectively"/>
+            </xs:extension>
+        </xs:simpleContent>
+    </xs:complexType>
+
+    <xs:complexType name="propertiesType">
+        <xs:sequence>
+            <xs:element name="property" maxOccurs="unbounded" minOccurs="1">
+                <xs:complexType>
+                    <xs:sequence>
+                        <xs:element name="element" maxOccurs="unbounded" minOccurs="0">
+                            <xs:complexType>
+                                <xs:attribute name="key" type="xs:string"></xs:attribute>
+                                <xs:attribute name="value" type="xs:string" use="required"></xs:attribute>
+                            </xs:complexType>
+                        </xs:element>
+                    </xs:sequence>
+                    <xs:attribute name="type">
+                        <xs:simpleType>
+                            <xs:restriction base="xs:string">
+                                <xs:enumeration value="array"></xs:enumeration>
+                            </xs:restriction>
+                        </xs:simpleType>
+                    </xs:attribute>
+                    <xs:attribute name="name" type="xs:string" use="required"></xs:attribute>
+                    <xs:attribute name="value" type="xs:string"></xs:attribute>
+                    <xs:attribute name="extend" type="xs:boolean" default="false"/>
+                    <xs:attributeGroup ref="applySelectively"/>
+                </xs:complexType>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+
+    <xs:simpleType name="messageType">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="error"></xs:enumeration>
+            <xs:enumeration value="warning"></xs:enumeration>
+        </xs:restriction>
+    </xs:simpleType>
+
+    <xs:attributeGroup name="applySelectively">
+        <xs:attribute name="phpcs-only" type="xs:boolean" default="false"/>
+        <xs:attribute name="phpcbf-only" type="xs:boolean" default="false"/>
+    </xs:attributeGroup>
+</xs:schema>