diff --git a/logprep/util/schema_and_rule_checker.py b/logprep/util/schema_and_rule_checker.py
index 05a3ca2d4..50d1015b0 100644
--- a/logprep/util/schema_and_rule_checker.py
+++ b/logprep/util/schema_and_rule_checker.py
@@ -2,27 +2,28 @@
 
 """Runner for testing schemas and rules"""
 
-from typing import Optional, List
-from collections.abc import Iterable
-
 from argparse import ArgumentParser
+from collections.abc import Iterable
+from json.decoder import JSONDecodeError
 from logging import Logger
 from os import walk
 from os.path import join
-from json.decoder import JSONDecodeError
+from typing import List, Optional
 
 from colorama import Fore
 
-from logprep.util.configuration import Configuration
-
+from logprep.abc.processor import Processor
+from logprep.filter.lucene_filter import LuceneFilterError
 from logprep.processor.base.exceptions import (
     InvalidRuleDefinitionError,
     MismatchedRuleDefinitionError,
 )
 from logprep.processor.base.rule import Rule
-from logprep.abc.processor import Processor
-from logprep.processor.labeler.labeling_schema import LabelingSchema, InvalidLabelingSchemaFileError
-from logprep.filter.lucene_filter import LuceneFilterError
+from logprep.processor.labeler.labeling_schema import (
+    InvalidLabelingSchemaFileError,
+    LabelingSchema,
+)
+from logprep.util.configuration import Configuration
 
 
 class SchemaAndRuleChecker:
@@ -138,14 +139,17 @@ def _validate_rules_in_path(
         path_schema: str = None,
     ):
         number_of_checked_rules = 0
-        for root, _, files in walk(path_rules):
-            for file in files:
-                number_of_checked_rules += 1
-                rule_path = join(root, file)
-
-                multi_rule = self.check_rule_creation_errors(rule_class, rule_path)
-                self._validate_schema(multi_rule, path_schema, rule_path)
-            self._print_schema_check_results(path_schema)
+        if isinstance(path_rules, dict):
+            self.check_rule_creation_errors(rule_class, path_rules)
+        else:
+            for root, _, files in walk(path_rules):
+                for file in files:
+                    number_of_checked_rules += 1
+                    rule_path = join(root, file)
+
+                    multi_rule = self.check_rule_creation_errors(rule_class, rule_path)
+                    self._validate_schema(multi_rule, path_schema, rule_path)
+                self._print_schema_check_results(path_schema)
         if not self.errors:
             self._print_valid(
                 f"Valid {processor_type} rules in {path_rules} "
@@ -198,7 +202,9 @@ def check_rule_creation_errors(self, rule_class: Rule, rule_path: str) -> Option
         """
         rule = None
         try:
-            if rule_path.endswith(".json") or rule_path.endswith(".yml"):
+            if isinstance(rule_path, dict):
+                rule = rule_class.create_rules_from_target(rule_path)
+            elif rule_path.endswith(".json") or rule_path.endswith(".yml"):
                 if not rule_path.endswith("_test.json"):
                     rule = rule_class.create_rules_from_target(rule_path)
         except InvalidRuleDefinitionError as error: