diff --git a/lib/package_protections.rb b/lib/package_protections.rb
index db9a358..24f88c2 100644
--- a/lib/package_protections.rb
+++ b/lib/package_protections.rb
@@ -118,15 +118,6 @@ def self.rubocop_yml(root_pathname: Bundler.root)
     Private.rubocop_yml(root_pathname: root_pathname)
   end
 
-  #
-  # Do not use this method -- it's meant to be used by Rubocop cops to get directory-specific
-  # parameters without needing to have directory-specific .rubocop.yml files.
-  #
-  sig { params(identifier: Identifier).returns(T::Hash[T.untyped, T.untyped]) }
-  def self.private_cop_config(identifier)
-    Private.private_cop_config(identifier)
-  end
-
   sig { void }
   def self.bust_cache!
     Private.bust_cache!
diff --git a/lib/package_protections/private.rb b/lib/package_protections/private.rb
index b8aefe1..86913f6 100644
--- a/lib/package_protections/private.rb
+++ b/lib/package_protections/private.rb
@@ -115,23 +115,12 @@ def self.get_package_with_name(name)
     sig { void }
     def self.bust_cache!
       @protected_packages_indexed_by_name = nil
-      @private_cop_config = nil
       PackageProtections.config.bust_cache!
       # This comes explicitly after `PackageProtections.config.bust_cache!` because
       # otherwise `PackageProtections.config` will attempt to reload the client configuratoin.
       @loaded_client_configuration = false
     end
 
-    sig { params(identifier: Identifier).returns(T::Hash[T.untyped, T.untyped]) }
-    def self.private_cop_config(identifier)
-      @private_cop_config ||= T.let(@private_cop_config, T.nilable(T::Hash[T.untyped, T.untyped]))
-      @private_cop_config ||= begin
-        protected_packages = all_protected_packages
-        protection = T.cast(PackageProtections.with_identifier(identifier), PackageProtections::RubocopProtectionInterface)
-        protected_packages.to_h { |p| [p.name, protection.custom_cop_config(p)] }
-      end
-    end
-
     sig { returns(T::Array[T::Hash[T.untyped, T.untyped]]) }
     def self.rubocop_todo_ymls
       @rubocop_todo_ymls = T.let(@rubocop_todo_ymls, T.nilable(T::Array[T::Hash[T.untyped, T.untyped]]))
diff --git a/lib/package_protections/rubocop_protection_interface.rb b/lib/package_protections/rubocop_protection_interface.rb
index e54dbfb..70384f7 100644
--- a/lib/package_protections/rubocop_protection_interface.rb
+++ b/lib/package_protections/rubocop_protection_interface.rb
@@ -57,9 +57,9 @@ def included_globs_for_pack; end
     # but a default is provided.
     ############################################################################
     sig do
-      params(package: ProtectedPackage).returns(T::Hash[T.untyped, T.untyped])
+      returns(T::Hash[T.untyped, T.untyped])
     end
-    def custom_cop_config(package)
+    def custom_cop_config
       {}
     end
 
@@ -135,7 +135,8 @@ def cop_configs(packages)
         CopConfig.new(
           name: cop_name,
           enabled: include_paths.any?,
-          include_paths: include_paths
+          include_paths: include_paths,
+          metadata: custom_cop_config
         )
       ]
     end
diff --git a/lib/rubocop/cop/package_protections/only_class_methods.rb b/lib/rubocop/cop/package_protections/only_class_methods.rb
index 859a7a3..fc6e93a 100644
--- a/lib/rubocop/cop/package_protections/only_class_methods.rb
+++ b/lib/rubocop/cop/package_protections/only_class_methods.rb
@@ -33,6 +33,15 @@ def included_globs_for_pack
           ]
         end
 
+        sig do
+          override.returns(T::Hash[T.untyped, T.untyped])
+        end
+        def custom_cop_config
+          {
+            'AcceptableParentClasses' => ::PackageProtections.config.acceptable_parent_classes,
+          }
+        end
+
         sig { override.returns(String) }
         def identifier
           IDENTIFIER
diff --git a/spec/package_protections_spec.rb b/spec/package_protections_spec.rb
index 7d7f8af..c043abd 100644
--- a/spec/package_protections_spec.rb
+++ b/spec/package_protections_spec.rb
@@ -1295,7 +1295,18 @@ def get_new_violations
           it 'generates the expected rubocop.yml entries' do
             apples_package_yml_with_api_documentation_protection_set_to_fail_never
             cop_config = get_resulting_rubocop[cop_name]
-            expect(cop_config).to eq({ 'Enabled' => false })
+            expect(cop_config).to eq({ 'Enabled' => false, 'AcceptableParentClasses' => []})
+          end
+
+          context 'acceptable parent classes is configured' do
+            it 'generates the expected rubocop.yml entries' do
+              PackageProtections.configure do |config|
+                config.acceptable_parent_classes = ['Blah']
+              end
+              apples_package_yml_with_api_documentation_protection_set_to_fail_never
+              cop_config = get_resulting_rubocop[cop_name]
+              expect(cop_config).to eq({ 'Enabled' => false, 'AcceptableParentClasses' => ['Blah']})
+            end
           end
 
           it 'is implemented by Rubocop' do