diff --git a/.github/workflows/lint-js-and-ruby.yml b/.github/workflows/lint-js-and-ruby.yml
index 5c345d172d..8067b07885 100644
--- a/.github/workflows/lint-js-and-ruby.yml
+++ b/.github/workflows/lint-js-and-ruby.yml
@@ -11,6 +11,7 @@ on:
     paths-ignore:
       - '**.md'
       - 'docs/**'
+  workflow_dispatch:
 
 jobs:
   detect-changes:
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 874439614b..3be04b11b1 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -11,6 +11,7 @@ on:
     paths-ignore:
       - '**.md'
       - 'docs/**'
+  workflow_dispatch:
 
 jobs:
   detect-changes:
diff --git a/.github/workflows/package-js-tests.yml b/.github/workflows/package-js-tests.yml
index 1411f29a4f..02be726a48 100644
--- a/.github/workflows/package-js-tests.yml
+++ b/.github/workflows/package-js-tests.yml
@@ -15,6 +15,7 @@ on:
       - 'docs/**'
       - 'lib/**'
       - 'spec/react_on_rails/**'
+  workflow_dispatch:
 
 jobs:
   detect-changes:
diff --git a/.github/workflows/pro-integration-tests.yml b/.github/workflows/pro-integration-tests.yml
index 78b9917253..96913b31d7 100644
--- a/.github/workflows/pro-integration-tests.yml
+++ b/.github/workflows/pro-integration-tests.yml
@@ -5,6 +5,7 @@ on:
     branches:
       - 'master'
   pull_request:
+  workflow_dispatch:
 
 defaults:
   run:
diff --git a/.github/workflows/pro-lint.yml b/.github/workflows/pro-lint.yml
index fa7d85adc9..a790cf3f84 100644
--- a/.github/workflows/pro-lint.yml
+++ b/.github/workflows/pro-lint.yml
@@ -5,6 +5,7 @@ on:
     branches:
       - 'master'
   pull_request:
+  workflow_dispatch:
 
 defaults:
   run:
diff --git a/.github/workflows/pro-package-tests.yml b/.github/workflows/pro-package-tests.yml
index e69993ea1e..db92de6f2a 100644
--- a/.github/workflows/pro-package-tests.yml
+++ b/.github/workflows/pro-package-tests.yml
@@ -5,6 +5,7 @@ on:
     branches:
       - 'master'
   pull_request:
+  workflow_dispatch:
 
 defaults:
   run:
diff --git a/.github/workflows/rspec-package-specs.yml b/.github/workflows/rspec-package-specs.yml
index 6787ec323b..cb1c062661 100644
--- a/.github/workflows/rspec-package-specs.yml
+++ b/.github/workflows/rspec-package-specs.yml
@@ -15,6 +15,7 @@ on:
       - 'docs/**'
       - 'packages/react-on-rails/src/**'
       - 'node_package/src/**'
+  workflow_dispatch:
 
 jobs:
   detect-changes:
diff --git a/rakelib/shakapacker_examples.rake b/rakelib/shakapacker_examples.rake
index c17f2f8e0a..47b56fc583 100644
--- a/rakelib/shakapacker_examples.rake
+++ b/rakelib/shakapacker_examples.rake
@@ -37,7 +37,22 @@ namespace :shakapacker_examples do # rubocop:disable Metrics/BlockLength
       sh_in_dir(example_type.dir, "echo \"gem 'shakapacker', '>= 8.2.0'\" >> #{example_type.gemfile}")
       bundle_install_in(example_type.dir)
       sh_in_dir(example_type.dir, "rake shakapacker:install")
-      sh_in_dir(example_type.dir, example_type.generator_shell_commands)
+
+      # Skip validation during generator run since npm package isn't installed yet
+      #
+      # ENV Variable Scope: We prefix each shell command with the ENV variable rather than
+      # setting it in the Ruby process for these reasons:
+      #
+      # 1. Each command spawns a new shell process with its own environment
+      # 2. The ENV variable is automatically scoped to each command (no cleanup needed)
+      # 3. This differs from the generator approach in lib/generators/react_on_rails/install_generator.rb
+      #    which sets ENV in the Ruby process and requires explicit cleanup
+      #
+      # This approach is simpler and safer for rake tasks that invoke shell commands.
+      generator_commands = example_type.generator_shell_commands.map do |cmd|
+        "REACT_ON_RAILS_SKIP_VALIDATION=true #{cmd}"
+      end
+      sh_in_dir(example_type.dir, generator_commands)
       sh_in_dir(example_type.dir, "yarn")
     end
   end