diff --git a/README.md b/README.md
index 8356f1d..ef87428 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,12 @@
 ## redborder-serverspec-manager
-Infrastructure integration testing for redborder-manager
+Infrastructure integration testing for a redborder manager machine. The idea is to run the tests in a machine that is the validator local machine, so the target machine is affected by the tests.
 
 ## Installation
-On your workstation, execute the following command in your terminal:
+First, clone this repository on your workstation. Then install the gemes by executing this:
 ```ssh
 bundle install
 ```
-Also make sure to share your public ssh key to target machine:
+Sometimes you need to make sure that you share your public ssh key to target machine:
 ```
 ssh-copy-id root@<target_ip>
 ```
@@ -21,6 +21,7 @@ Optional parameters:
 * TARGET_HOST: Machine where the tests will run via SSH.
 * LOGIN_USERNAME: Username for SSH connection to the test machine.
 * LOGIN_PASSWORD: Password for SSH connection to the test machine.
+* IS_CLUSTER: Boolean to indicate if the target machine is a cluster.
 * -j 10 -m: To run tests in pararell
 Example with optional parameters:
 ```
diff --git a/spec/users/redborder_ai_spec.rb b/spec/users/redborder_ai_spec.rb
new file mode 100644
index 0000000..4dbce7e
--- /dev/null
+++ b/spec/users/redborder_ai_spec.rb
@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+set :os, family: 'redhat', release: '9', arch: 'x86_64'
+pkg = usr = 'redborder-ai'
+describe user(usr) do
+  before(:all) do
+    skip("Package #{pkg} is not installed") unless package(pkg).installed?
+  end
+  it { should exist }
+  it { should have_login_shell('/sbin/nologin') }
+end
diff --git a/spec/users/users_spec.rb b/spec/users/users_spec.rb
index f463521..0782fcf 100644
--- a/spec/users/users_spec.rb
+++ b/spec/users/users_spec.rb
@@ -15,7 +15,9 @@
   allowed_users = Set.new %w[root redborder postgres minio]
   not_allowed_users = bash_users - allowed_users
 
-  it 'should only allow specified users to have login permissions' do
-    expect(not_allowed_users.to_a).to be_empty
+  describe 'users with login permissions' do
+    it 'should only allow specified users' do
+      expect(not_allowed_users.to_a).to be_empty, "Unexpected users with login permissions: #{not_allowed_users.to_a}"
+    end
   end
 end