diff --git a/Gemfile b/Gemfile
deleted file mode 100644
index b0c76457f..000000000
--- a/Gemfile
+++ /dev/null
@@ -1,3 +0,0 @@
-source 'https://rubygems.org'
-
-gem 'rspec'
diff --git a/Gemfile.lock b/Gemfile.lock
deleted file mode 100644
index 462e03252..000000000
--- a/Gemfile.lock
+++ /dev/null
@@ -1,26 +0,0 @@
-GEM
-  remote: https://rubygems.org/
-  specs:
-    diff-lcs (1.3)
-    rspec (3.8.0)
-      rspec-core (~> 3.8.0)
-      rspec-expectations (~> 3.8.0)
-      rspec-mocks (~> 3.8.0)
-    rspec-core (3.8.0)
-      rspec-support (~> 3.8.0)
-    rspec-expectations (3.8.2)
-      diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.8.0)
-    rspec-mocks (3.8.0)
-      diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.8.0)
-    rspec-support (3.8.0)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  rspec
-
-BUNDLED WITH
-   2.0.1
diff --git a/tasks/validate-all-jobs-public/task b/tasks/validate-all-jobs-public/task
deleted file mode 100755
index ec6aa5f76..000000000
--- a/tasks/validate-all-jobs-public/task
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/bash
-set -exu
-
-# Inputs
-RUNTIME_CI_DIR="${PWD}/${RUNTIME_CI_DIR:?"\$RUNTIME_CI_DIR not set"}"
-
-pushd "${RUNTIME_CI_DIR}" > /dev/null
-  PARSED_BUNDLE_VERSION=$(sed -n '/BUNDLED WITH/{;n;p;}' Gemfile.lock)
-  gem uninstall bundler
-  gem install bundler --version "$PARSED_BUNDLE_VERSION"
-  bundle install
-  bundle exec rspec \
-    --color \
-    "tasks/validate-all-jobs-public/validate_jobs_public.rb"
-popd > /dev/null
diff --git a/tasks/validate-all-jobs-public/task.rb b/tasks/validate-all-jobs-public/task.rb
new file mode 100755
index 000000000..ac333d82d
--- /dev/null
+++ b/tasks/validate-all-jobs-public/task.rb
@@ -0,0 +1,38 @@
+#!/usr/bin/env ruby
+
+require 'yaml'
+
+def find_yaml_files(directory)
+  yaml_files = Dir.glob(File.join(directory, '**', '*.yaml'))
+  yml_files = Dir.glob(File.join(directory, '**', '*.yml'))
+  yaml_files + yml_files
+end
+
+directory = ENV['RUNTIME_CI_DIR']
+if directory.nil? || directory.strip.empty?
+  puts "Error: Please set the RUNTIME_CI_DIR environment variable to specify the directory."
+end
+
+yaml_files = find_yaml_files(directory)
+puts "Found #{yaml_files.size} YAML files in #{directory}"
+
+failure = false
+
+yaml_files.each do |file|
+  puts "Checking #{file}..."
+  yaml_content = YAML.load_file(file, aliases: true)
+  next unless yaml_content.is_a?(Hash) && yaml_content.key?('jobs')
+  yaml_content['jobs'].each do |job|
+    unless job['public'] == true
+      puts "- #{job['name']} is not public."
+      failure = true
+    end
+  end
+end
+
+if failure
+  puts 'Error: Some jobs are not public'
+  exit 1
+end
+
+puts 'All jobs are public!'
diff --git a/tasks/validate-all-jobs-public/task.yml b/tasks/validate-all-jobs-public/task.yml
index 671cd7b8d..eac38a0c7 100644
--- a/tasks/validate-all-jobs-public/task.yml
+++ b/tasks/validate-all-jobs-public/task.yml
@@ -5,13 +5,13 @@ image_resource:
   type: docker-image
   source:
     repository: ruby
-    tag: 2.3-slim
+    tag: 3.1-slim
 
 inputs:
 - name: runtime-ci
 
 run:
-  path: runtime-ci/tasks/validate-all-jobs-public/task
+  path: runtime-ci/tasks/validate-all-jobs-public/task.rb
 
 params:
-  RUNTIME_CI_DIR: runtime-ci
+  RUNTIME_CI_DIR: runtime-ci/ci
diff --git a/tasks/validate-all-jobs-public/validate_jobs_public.rb b/tasks/validate-all-jobs-public/validate_jobs_public.rb
deleted file mode 100644
index d014557b3..000000000
--- a/tasks/validate-all-jobs-public/validate_jobs_public.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-require 'yaml'
-
-Dir.glob("pipelines/*.yml").each do |f|
-  job_array = YAML.load_file(f)['jobs'].map{ |j| {:name => j['name'], :public => j['public']} }
-  job_array.each do |job|
-    RSpec.describe "pipeline jobs" do
-      context "for #{f}\##{job[:name]}" do
-        it "should have public: true" do
-          expect(job[:public]).to be_truthy
-        end
-      end
-    end
-  end
-end