diff --git a/.codeclimate.yml b/.codeclimate.yml
deleted file mode 100644
index 1299fc1bb..000000000
--- a/.codeclimate.yml
+++ /dev/null
@@ -1,6 +0,0 @@
-version: "2"         # required to adjust maintainability checks
-plugins:
-  sonar-java:
-    enabled: true
-    config:
-      sonar.java.source: "14"
\ No newline at end of file
diff --git a/src/main/java/de/bixilon/minosoft/data/commands/parser/CommandParsers.kt b/src/main/java/de/bixilon/minosoft/data/commands/parser/CommandParsers.kt
index d948b38f8..57d761217 100644
--- a/src/main/java/de/bixilon/minosoft/data/commands/parser/CommandParsers.kt
+++ b/src/main/java/de/bixilon/minosoft/data/commands/parser/CommandParsers.kt
@@ -49,7 +49,7 @@ object CommandParsers {
             // swizzle
             // team
             // item_slot
-            // resource_location
+            ModIdentifier("resource_location") to IdentifierParser.IDENTIFIER_PARSER,
             ModIdentifier("mob_effect") to IdentifierListParser.MOB_EFFECT_PARSER,
             // function
             // entity_anchor
diff --git a/src/main/java/de/bixilon/minosoft/data/commands/parser/IdentifierListParser.kt b/src/main/java/de/bixilon/minosoft/data/commands/parser/IdentifierListParser.kt
index 4e1d4a40e..c996001a2 100644
--- a/src/main/java/de/bixilon/minosoft/data/commands/parser/IdentifierListParser.kt
+++ b/src/main/java/de/bixilon/minosoft/data/commands/parser/IdentifierListParser.kt
@@ -14,6 +14,7 @@ package de.bixilon.minosoft.data.commands.parser
 
 import de.bixilon.minosoft.data.commands.parser.exceptions.CommandParseException
 import de.bixilon.minosoft.data.commands.parser.exceptions.EnchantmentNotFoundCommandParseException
+import de.bixilon.minosoft.data.commands.parser.exceptions.InvalidIdentifierCommandParseException
 import de.bixilon.minosoft.data.commands.parser.exceptions.MobEffectNotFoundCommandParseException
 import de.bixilon.minosoft.data.commands.parser.properties.ParserProperties
 import de.bixilon.minosoft.data.mappings.ModIdentifier
@@ -26,7 +27,13 @@ class IdentifierListParser : CommandParser() {
     override fun isParsable(connection: Connection, properties: ParserProperties?, stringReader: ImprovedStringReader) {
         val argument = stringReader.readUntilNextCommandArgument()
 
-        val identifier = ModIdentifier(argument)
+
+        val identifier: ModIdentifier
+        try {
+            identifier = ModIdentifier.getIdentifier(argument)
+        } catch (exception: IllegalArgumentException) {
+            throw InvalidIdentifierCommandParseException(stringReader, argument)
+        }
 
         if (this == ENCHANTMENT_PARSER) {
             if (!connection.mapping.doesEnchantmentExist(identifier)) {
diff --git a/src/main/java/de/bixilon/minosoft/data/commands/parser/IdentifierParser.kt b/src/main/java/de/bixilon/minosoft/data/commands/parser/IdentifierParser.kt
new file mode 100644
index 000000000..f287e1685
--- /dev/null
+++ b/src/main/java/de/bixilon/minosoft/data/commands/parser/IdentifierParser.kt
@@ -0,0 +1,38 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program.If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+package de.bixilon.minosoft.data.commands.parser
+
+import de.bixilon.minosoft.data.commands.parser.exceptions.CommandParseException
+import de.bixilon.minosoft.data.commands.parser.exceptions.InvalidIdentifierCommandParseException
+import de.bixilon.minosoft.data.commands.parser.properties.ParserProperties
+import de.bixilon.minosoft.data.mappings.ModIdentifier
+import de.bixilon.minosoft.protocol.network.Connection
+import de.bixilon.minosoft.util.buffers.ImprovedStringReader
+
+class IdentifierParser : CommandParser() {
+
+    @Throws(CommandParseException::class)
+    override fun isParsable(connection: Connection, properties: ParserProperties?, stringReader: ImprovedStringReader) {
+        val argument = stringReader.readUntilNextCommandArgument()
+
+        try {
+            ModIdentifier.getIdentifier(argument)
+        } catch (exception: IllegalArgumentException) {
+            throw InvalidIdentifierCommandParseException(stringReader, argument)
+        }
+    }
+
+    companion object {
+        val IDENTIFIER_PARSER = IdentifierParser()
+    }
+}
diff --git a/src/main/java/de/bixilon/minosoft/data/commands/parser/exceptions/InvalidIdentifierCommandParseException.kt b/src/main/java/de/bixilon/minosoft/data/commands/parser/exceptions/InvalidIdentifierCommandParseException.kt
new file mode 100644
index 000000000..5d7b5232d
--- /dev/null
+++ b/src/main/java/de/bixilon/minosoft/data/commands/parser/exceptions/InvalidIdentifierCommandParseException.kt
@@ -0,0 +1,25 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program.If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+package de.bixilon.minosoft.data.commands.parser.exceptions
+
+import de.bixilon.minosoft.util.buffers.ImprovedStringReader
+
+class InvalidIdentifierCommandParseException : CommandParseException {
+    constructor(command: ImprovedStringReader, currentArgument: String) : super(ERROR_MESSAGE, command, currentArgument)
+
+    constructor(command: ImprovedStringReader, currentArgument: String, cause: Throwable) : super(ERROR_MESSAGE, command, currentArgument, cause)
+
+    companion object {
+        private const val ERROR_MESSAGE = "Identifier is invalid!"
+    }
+}
diff --git a/src/main/java/de/bixilon/minosoft/data/mappings/ModIdentifier.java b/src/main/java/de/bixilon/minosoft/data/mappings/ModIdentifier.java
index 78f24ec51..201b78a53 100644
--- a/src/main/java/de/bixilon/minosoft/data/mappings/ModIdentifier.java
+++ b/src/main/java/de/bixilon/minosoft/data/mappings/ModIdentifier.java
@@ -16,6 +16,7 @@ package de.bixilon.minosoft.data.mappings;
 import de.bixilon.minosoft.protocol.protocol.ProtocolDefinition;
 
 import java.util.Objects;
+import java.util.regex.Matcher;
 
 public class ModIdentifier {
     protected final String mod;
@@ -42,6 +43,16 @@ public class ModIdentifier {
         this.identifier = identifier.getIdentifier();
     }
 
+    public static ModIdentifier getIdentifier(String identifier) throws IllegalArgumentException {
+        Matcher matcher = ProtocolDefinition.IDENTIFIER_PATTERN.matcher(identifier);
+        if (!matcher.find() || !matcher.group().equals(identifier)) {
+            throw new IllegalArgumentException(String.format("%s in not a valid identifier!", identifier));
+        }
+
+        return new ModIdentifier(identifier);
+
+    }
+
     public String getMod() {
         return this.mod;
     }
diff --git a/src/main/java/de/bixilon/minosoft/protocol/protocol/ProtocolDefinition.java b/src/main/java/de/bixilon/minosoft/protocol/protocol/ProtocolDefinition.java
index f82e398e5..4e32e3bca 100644
--- a/src/main/java/de/bixilon/minosoft/protocol/protocol/ProtocolDefinition.java
+++ b/src/main/java/de/bixilon/minosoft/protocol/protocol/ProtocolDefinition.java
@@ -48,6 +48,7 @@ public final class ProtocolDefinition {
     public static final String COMMAND_SEPARATOR = " ";
 
     public static final Pattern MINECRAFT_NAME_VALIDATOR = Pattern.compile("\\w{3,16}");
+    public static final Pattern IDENTIFIER_PATTERN = Pattern.compile("([a-z_]+:)?[a-z_]+");
 
     public static final int SECTION_WIDTH_X = 16;
     public static final int SECTION_WIDTH_Z = 16;