diff --git a/lib/polish_geeks/dev_tools/commands/rubocop_rspec.rb b/lib/polish_geeks/dev_tools/commands/rubocop_rspec.rb
index c14020f..e53d5c3 100644
--- a/lib/polish_geeks/dev_tools/commands/rubocop_rspec.rb
+++ b/lib/polish_geeks/dev_tools/commands/rubocop_rspec.rb
@@ -1,15 +1,20 @@
 module PolishGeeks
   module DevTools
     module Commands
-      # Command wrapper for Rubocop Rspec validation
-      # It informs us if rspec specs are formatted in a proper way
-      class RubocopRspec < Rubocop
+      # Command wrapper for Rubocop validation
+      # It informs us if code is formatted in a proper way
+      class RubocopRspec < Base
         self.config_name = '.rubocop.yml'
         self.type = :validator
         self.validators = [
           Validators::Rubocop
         ]
 
+        # Regexp used to get number of inspected files
+        FILES_REGEXP = /(\d+) files inspected/
+        # Regexp used to get number of offenses detected
+        OFFENSES_REGEXP = /(\d+) offense.* detected/
+
         # Executes this command
         # @return [String] command output
         def execute
@@ -19,10 +24,27 @@ def execute
           @output = Shell.new.execute(cmd.join(' '))
         end
 
+        # @return [Boolean] true if there were no Rubocop offenses detected
+        def valid?
+          offenses_count == 0
+        end
+
         # @return [String] default label for this command
         def label
           "RubocopRspec (#{files_count} files, #{offenses_count} offenses)"
         end
+
+        private
+
+        # @return [Integer] number of files inspected
+        def files_count
+          output.scan(FILES_REGEXP).flatten.first.to_i
+        end
+
+        # @return [Integer] number of offences found
+        def offenses_count
+          output.scan(OFFENSES_REGEXP).flatten.first.to_i
+        end
       end
     end
   end
diff --git a/spec/lib/polish_geeks/dev_tools/commands/rubocop_rspec_spec.rb b/spec/lib/polish_geeks/dev_tools/commands/rubocop_rspec_spec.rb
index ebce6ec..f9ba0c6 100644
--- a/spec/lib/polish_geeks/dev_tools/commands/rubocop_rspec_spec.rb
+++ b/spec/lib/polish_geeks/dev_tools/commands/rubocop_rspec_spec.rb
@@ -49,6 +49,32 @@
     end
   end
 
+  describe '#valid?' do
+    context 'when offenses count is equal 0' do
+      before do
+        expect(subject)
+          .to receive(:offenses_count)
+          .and_return(0)
+      end
+
+      it 'returns true' do
+        expect(subject.valid?).to eq true
+      end
+    end
+
+    context 'when offenses count is different from 0' do
+      before do
+        expect(subject)
+          .to receive(:offenses_count)
+          .and_return(100)
+      end
+
+      it 'returns false' do
+        expect(subject.valid?).to eq false
+      end
+    end
+  end
+
   describe '#label' do
     context 'when we run rubocop' do
       before do
@@ -65,6 +91,30 @@
     end
   end
 
+  describe '#files_count' do
+    context 'when we count files' do
+      before do
+        subject.instance_variable_set(:@output, '10 files inspected')
+      end
+
+      it 'returns a proper value' do
+        expect(subject.send(:files_count)).to eq 10
+      end
+    end
+  end
+
+  describe '#offenses_count' do
+    context 'when we count offenses' do
+      before do
+        subject.instance_variable_set(:@output, '5 offenses detected')
+      end
+
+      it 'returns a proper value' do
+        expect(subject.send(:offenses_count)).to eq 5
+      end
+    end
+  end
+
   describe '.generator?' do
     it { expect(described_class.generator?).to eq false }
   end