diff --git a/core/modules/contact/contact.local_tasks.yml b/core/modules/contact/contact.local_tasks.yml
index 91bb65d..2eee1ee 100644
--- a/core/modules/contact/contact.local_tasks.yml
+++ b/core/modules/contact/contact.local_tasks.yml
@@ -2,3 +2,9 @@ contact.category_edit:
   title: 'Edit'
   route_name: contact.category_edit
   tab_root_id: contact.category_edit
+
+contact.personal_page:
+  title: 'Contact'
+  route_name: contact.personal_page
+  weight: 2
+  tab_root_id: user.view
diff --git a/core/modules/contact/contact.module b/core/modules/contact/contact.module
index 58e343e..ea616d8 100644
--- a/core/modules/contact/contact.module
+++ b/core/modules/contact/contact.module
@@ -81,12 +81,6 @@ function contact_menu() {
     'route_name' => 'contact.site_page_category',
     'type' => MENU_VISIBLE_IN_BREADCRUMB,
   );
-  $items['user/%user/contact'] = array(
-    'title' => 'Contact',
-    'route_name' => 'contact.personal_page',
-    'type' => MENU_LOCAL_TASK,
-    'weight' => 2,
-  );
   return $items;
 }
 
diff --git a/core/modules/content_translation/content_translation.module b/core/modules/content_translation/content_translation.module
index 1454bd8..4507228 100644
--- a/core/modules/content_translation/content_translation.module
+++ b/core/modules/content_translation/content_translation.module
@@ -178,20 +178,6 @@ function content_translation_menu() {
         $item[str_replace('_', ' ', $key)] = $value;
       }
 
-      $items["$path/translations"] = array(
-        'title' => 'Translate',
-        'route_name' => $info['links']['drupal:content-translation-overview'],
-        'type' => MENU_LOCAL_TASK,
-        'context' => MENU_CONTEXT_PAGE,
-        'weight' => 2,
-      ) + $item;
-
-      $items["$path/translations/overview"] = array(
-        'title' => 'Overview',
-        'type' => MENU_DEFAULT_LOCAL_TASK,
-        'weight' => 0,
-      );
-
       // Add translation callback.
       // @todo Add the access callback instead of replacing it as soon as the
       // routing system supports multiple callbacks.
diff --git a/core/modules/entity/entity.local_tasks.yml b/core/modules/entity/entity.local_tasks.yml
index 54895b4..8189782 100644
--- a/core/modules/entity/entity.local_tasks.yml
+++ b/core/modules/entity/entity.local_tasks.yml
@@ -7,3 +7,18 @@ entity.form_mode_edit:
   title: 'Edit'
   route_name: entity.form_mode_edit
   tab_root_id: entity.form_mode_edit
+
+entity.view_mode_list:
+  title: List
+  route_name: entity.view_mode_list
+  tab_root_id: entity.view_mode_list
+
+entity.view_mode_list:
+  title: List
+  route_name: entity.view_mode_list
+  tab_root_id: entity.view_mode_list
+
+entity.form_mode_list:
+  title: List
+  route_name: entity.form_mode_list
+  tab_root_id: entity.form_mode_list
diff --git a/core/modules/entity/entity.module b/core/modules/entity/entity.module
index ef82f18..bdcba30 100644
--- a/core/modules/entity/entity.module
+++ b/core/modules/entity/entity.module
@@ -39,10 +39,6 @@ function entity_menu() {
     'description' => 'Manage custom view modes.',
     'route_name' => 'entity.view_mode_list',
   );
-  $items['admin/structure/display-modes/view/list'] = array(
-    'title' => 'List',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
   $items['admin/structure/display-modes/view/add'] = array(
     'title' => 'Add view mode',
     'route_name' => 'entity.view_mode_add',
@@ -61,10 +57,6 @@ function entity_menu() {
     'description' => 'Manage custom form modes.',
     'route_name' => 'entity.form_mode_list',
   );
-  $items['admin/structure/display-modes/form/list'] = array(
-    'title' => 'List',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
   $items['admin/structure/display-modes/form/add'] = array(
     'title' => 'Add form mode',
     'route_name' => 'entity.form_mode_add',
diff --git a/core/modules/filter/filter.local_tasks.yml b/core/modules/filter/filter.local_tasks.yml
index 9f7e8e9..56cbb87 100644
--- a/core/modules/filter/filter.local_tasks.yml
+++ b/core/modules/filter/filter.local_tasks.yml
@@ -3,3 +3,8 @@ filter.format_edit_tab:
   title: 'Configure'
   tab_root_id: filter.format_edit_tab
   weight: -10
+
+filter.admin_overview:
+  title: List
+  route_name: filter.admin_overview
+  tab_root_id: filter.admin_overview
diff --git a/core/modules/filter/filter.module b/core/modules/filter/filter.module
index 922688d..4962044 100644
--- a/core/modules/filter/filter.module
+++ b/core/modules/filter/filter.module
@@ -136,10 +136,6 @@ function filter_menu() {
     'description' => 'Configure how content input by users is filtered, including allowed HTML tags. Also allows enabling of module-provided filters.',
     'route_name' => 'filter.admin_overview',
   );
-  $items['admin/config/content/formats/list'] = array(
-    'title' => 'List',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
   $items['admin/config/content/formats/manage/%'] = array(
     'title callback' => 'entity_page_label',
     'title arguments' => array(5),
diff --git a/core/modules/image/image.local_tasks.yml b/core/modules/image/image.local_tasks.yml
index 3aeeebd..3bff783 100644
--- a/core/modules/image/image.local_tasks.yml
+++ b/core/modules/image/image.local_tasks.yml
@@ -2,3 +2,8 @@ image.style_edit:
   title: 'Edit'
   route_name: image.style_edit
   tab_root_id: image.style_edit
+
+image.style_list:
+  title: List
+  route_name: image.style_list
+  tab_root_id: image.style_list
diff --git a/core/modules/image/image.module b/core/modules/image/image.module
index 23443ff..5b0d9a3 100644
--- a/core/modules/image/image.module
+++ b/core/modules/image/image.module
@@ -95,11 +95,6 @@ function image_menu() {
     'description' => 'Configure styles that can be used for resizing or adjusting images on display.',
     'route_name' => 'image.style_list',
   );
-  $items['admin/config/media/image-styles/list'] = array(
-    'title' => 'List',
-    'description' => 'List the current image styles on the site.',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
   $items['admin/config/media/image-styles/manage/%image_style'] = array(
     'title' => 'Edit style',
     'description' => 'Configure an image style.',
diff --git a/core/modules/menu/menu.local_tasks.yml b/core/modules/menu/menu.local_tasks.yml
index 3b2bf45..bcf4de8 100644
--- a/core/modules/menu/menu.local_tasks.yml
+++ b/core/modules/menu/menu.local_tasks.yml
@@ -2,3 +2,14 @@ menu.menu_edit:
   title: 'Edit menu'
   route_name: menu.menu_edit
   tab_root_id: menu.menu_edit
+
+menu.overview_page:
+  title: 'List'
+  route_name: menu.overview_page
+  tab_root_id: menu.overview_page
+
+menu.settings:
+  title: 'Settings'
+  route_name: menu.settings
+  tab_root_id: menu.overview_page
+  weight: 100
diff --git a/core/modules/menu/menu.module b/core/modules/menu/menu.module
index fc149ee..3a30bfc 100644
--- a/core/modules/menu/menu.module
+++ b/core/modules/menu/menu.module
@@ -71,16 +71,6 @@ function menu_menu() {
     'description' => 'Add new menus to your site, edit existing menus, and rename and reorganize menu links.',
     'route_name' => 'menu.overview_page',
   );
-  $items['admin/structure/menu/list'] = array(
-    'title' => 'List menus',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
-  $items['admin/structure/menu/settings'] = array(
-    'title' => 'Settings',
-    'route_name' => 'menu.settings',
-    'type' => MENU_LOCAL_TASK,
-    'weight' => 100,
-  );
   $items['admin/structure/menu/manage/%menu'] = array(
     'title' => 'Edit menu',
     'route_name' => 'menu.menu_edit',
diff --git a/core/modules/node/node.local_tasks.yml b/core/modules/node/node.local_tasks.yml
index ecf6298..4c6379b 100644
--- a/core/modules/node/node.local_tasks.yml
+++ b/core/modules/node/node.local_tasks.yml
@@ -20,3 +20,7 @@ node.type_edit:
   title: 'Edit'
   route_name: node.type_edit
   tab_root_id: node.type_edit
+node.overview_types:
+  title: List
+  route_name: node.overview_types
+  tab_root_id: node.overview_types
diff --git a/core/modules/node/node.module b/core/modules/node/node.module
index 8da4271..4254ed7 100644
--- a/core/modules/node/node.module
+++ b/core/modules/node/node.module
@@ -945,10 +945,6 @@ function node_menu() {
     'description' => 'Manage content types, including default status, front page promotion, comment settings, etc.',
     'route_name' => 'node.overview_types',
   );
-  $items['admin/structure/types/list'] = array(
-    'title' => 'List',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
   $items['node/add'] = array(
     'title' => 'Add content',
     'route_name' => 'node.add_page',
diff --git a/core/modules/path/path.local_tasks.yml b/core/modules/path/path.local_tasks.yml
new file mode 100644
index 0000000..84e74d2
--- /dev/null
+++ b/core/modules/path/path.local_tasks.yml
@@ -0,0 +1,4 @@
+path.admin_overview:
+  title: List
+  route_name: path.admin_overview
+  tab_root_id: path.admin_overview
diff --git a/core/modules/path/path.module b/core/modules/path/path.module
index d33f881..7e48e74 100644
--- a/core/modules/path/path.module
+++ b/core/modules/path/path.module
@@ -62,10 +62,6 @@ function path_menu() {
     'route_name' => 'path.admin_overview',
     'weight' => -5,
   );
-  $items['admin/config/search/path/list'] = array(
-    'title' => 'List',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
   $items['admin/config/search/path/edit/%path'] = array(
     'title' => 'Edit alias',
     'route_name' => 'path.admin_edit',
diff --git a/core/modules/picture/picture.local_tasks.yml b/core/modules/picture/picture.local_tasks.yml
new file mode 100644
index 0000000..29b8446
--- /dev/null
+++ b/core/modules/picture/picture.local_tasks.yml
@@ -0,0 +1,5 @@
+picture.mapping_page_edit:
+  title: Edit
+  route_name: picture.mapping_page_edit
+  tab_root_id: picture.mapping_page_edit
+  weight: -10
diff --git a/core/modules/picture/picture.module b/core/modules/picture/picture.module
index b9b3b01..72f52a5 100644
--- a/core/modules/picture/picture.module
+++ b/core/modules/picture/picture.module
@@ -63,11 +63,6 @@ function picture_menu() {
     'title' => 'Edit picture mapping',
     'route_name' => 'picture.mapping_page_edit',
   );
-  $items['admin/config/media/picturemapping/%picture_mapping/edit'] = array(
-    'title' => 'Edit',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-    'weight' => -10,
-  );
   $items['admin/config/media/picturemapping/%picture_mapping/duplicate'] = array(
     'title' => 'Duplicate picture mapping',
     'route_name' => 'picture.mapping_page_duplicate',
diff --git a/core/modules/search/lib/Drupal/search/Form/SearchSettingsForm.php b/core/modules/search/lib/Drupal/search/Form/SearchSettingsForm.php
index 0ceef4b..bec3d21 100644
--- a/core/modules/search/lib/Drupal/search/Form/SearchSettingsForm.php
+++ b/core/modules/search/lib/Drupal/search/Form/SearchSettingsForm.php
@@ -263,6 +263,7 @@ public function submitForm(array &$form, array &$form_state) {
       $this->searchSettings->set('active_plugins', $new_plugins);
       drupal_set_message($this->t('The active search plugins have been changed.'));
       $this->state->set('menu_rebuild_needed', TRUE);
+      \Drupal::cache('cache')->deleteTags(array('local_task' => 1));
     }
     $this->searchSettings->save();
   }
diff --git a/core/modules/search/lib/Drupal/search/Plugin/Derivative/SearchLocalTask.php b/core/modules/search/lib/Drupal/search/Plugin/Derivative/SearchLocalTask.php
new file mode 100644
index 0000000..f18e699
--- /dev/null
+++ b/core/modules/search/lib/Drupal/search/Plugin/Derivative/SearchLocalTask.php
@@ -0,0 +1,42 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\search\Plugin\Derivative\SearchLocalTask.
+ */
+
+namespace Drupal\search\Plugin\Derivative;
+
+use Drupal\Component\Plugin\Derivative\DerivativeBase;
+
+/**
+ * Provides local tasks for each search plugin.
+ */
+class SearchLocalTask extends DerivativeBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getDerivativeDefinitions(array $base_plugin_definition) {
+    $this->derivatives = array();
+
+    $default_info = search_get_default_plugin_info();
+    if ($default_info) {
+      foreach (\Drupal::service('plugin.manager.search')->getActiveDefinitions() as $plugin_id => $search_info) {
+        $this->derivatives[$plugin_id] = array(
+          'title' => $search_info['title'],
+          'route_name' => 'search.view_' . $plugin_id,
+          'tab_root_id' => 'search.plugins:' . $default_info['id'],
+        );
+        if ($plugin_id == $default_info['id']) {
+          $this->derivatives[$plugin_id]['weight'] = -10;
+        }
+        else {
+          $this->derivatives[$plugin_id]['weight'] = 0;
+        }
+      }
+    }
+    return $this->derivatives;
+  }
+
+}
diff --git a/core/modules/search/search.local_tasks.yml b/core/modules/search/search.local_tasks.yml
new file mode 100644
index 0000000..ac332d7
--- /dev/null
+++ b/core/modules/search/search.local_tasks.yml
@@ -0,0 +1,3 @@
+search.plugins:
+  class: \Drupal\Core\Menu\LocalTaskDefault
+  derivative: \Drupal\search\Plugin\Derivative\SearchLocalTask
diff --git a/core/modules/search/search.module b/core/modules/search/search.module
index 56e6859..4afd6dc 100644
--- a/core/modules/search/search.module
+++ b/core/modules/search/search.module
@@ -167,25 +167,6 @@ function search_menu() {
     'type' => MENU_VISIBLE_IN_BREADCRUMB,
   );
 
-  // Add paths for searching. We add each plugin search path twice: once without
-  // and once with %menu_tail appended. The reason for this is that we want to
-  // preserve keywords when switching tabs, and also to have search tabs
-  // highlighted properly. The only way to do that within the Drupal menu
-  // system appears to be having two sets of tabs. See discussion on issue
-  // http://drupal.org/node/245103 for details.
-
-  $default_info = search_get_default_plugin_info();
-  if ($default_info) {
-    foreach (\Drupal::service('plugin.manager.search')->getActiveDefinitions() as $plugin_id => $search_info) {
-      $path = 'search/' . $search_info['path'];
-      $items[$path] = array(
-        'title' => $search_info['title'],
-        'route_name' => 'search.view_' . $plugin_id,
-        'type' => MENU_LOCAL_TASK,
-        'weight' => $plugin_id == $default_info['id'] ? -10 : 0,
-      );
-    }
-  }
   return $items;
 }
 
diff --git a/core/modules/simpletest/simpletest.local_tasks.yml b/core/modules/simpletest/simpletest.local_tasks.yml
new file mode 100644
index 0000000..b6eea38
--- /dev/null
+++ b/core/modules/simpletest/simpletest.local_tasks.yml
@@ -0,0 +1,9 @@
+simpletest.test_form:
+  title: List
+  route_name: simpletest.test_form
+  tab_root_id: simpletest.test_form
+simpletest.settings:
+  title: Settings
+  route_name: simpletest.settings
+  tab_root_id: simpletest.test_form
+  weight: 100
diff --git a/core/modules/simpletest/simpletest.module b/core/modules/simpletest/simpletest.module
index 6275ec3..e9e355d 100644
--- a/core/modules/simpletest/simpletest.module
+++ b/core/modules/simpletest/simpletest.module
@@ -38,17 +38,6 @@ function simpletest_menu() {
     'route_name' => 'simpletest.test_form',
     'weight' => -5,
   );
-  $items['admin/config/development/testing/list'] = array(
-    'title' => 'List',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
-  $items['admin/config/development/testing/settings'] = array(
-    'title' => 'Settings',
-    'route_name' => 'simpletest.settings',
-    'access arguments' => array('administer unit tests'),
-    'type' => MENU_LOCAL_TASK,
-    'weight' => 100,
-  );
   $items['admin/config/development/testing/results/%'] = array(
     'title' => 'Test result',
     'description' => 'View result of tests.',
diff --git a/core/modules/system/tests/modules/batch_test/batch_test.local_tasks.yml b/core/modules/system/tests/modules/batch_test/batch_test.local_tasks.yml
new file mode 100644
index 0000000..ea4a6fd
--- /dev/null
+++ b/core/modules/system/tests/modules/batch_test/batch_test.local_tasks.yml
@@ -0,0 +1,46 @@
+batch_test.test_form:
+  title: Simple
+  route_name: batch_test.test_form
+  tab_root_id: batch_test.test_form
+
+batch_test.multistep:
+  title: Multistep
+  route_name: batch_test.multistep
+  tab_root_id: batch_test.test_form
+  weight: 1
+
+batch_test.chained:
+  title: Chained
+  route_name: batch_test.chained
+  tab_root_id: batch_test.test_form
+  weight: 2
+
+batch_test.programmatic:
+  title: Chained
+  route_name: batch_test.programmatic
+  tab_root_id: batch_test.test_form
+  weight: 3
+
+batch_test.no_form:
+  title: 'No form'
+  route_name: batch_test.no_form
+  tab_root_id: batch_test.test_form
+  weight: 4
+
+batch_test.large_percentage:
+  title: 'Large percentage'
+  route_name: batch_test.large_percentage
+  tab_root_id: batch_test.test_form
+  weight: 5
+
+batch_test.nested_programmatic:
+  title: 'Nested programmatic'
+  route_name: batch_test.nested_programmatic
+  tab_root_id: batch_test.test_form
+  weight: 6
+
+batch_test.redirect:
+  title: 'Redirect'
+  route_name: batch_test.redirect
+  tab_root_id: batch_test.test_form
+  weight: 7
diff --git a/core/modules/system/tests/modules/batch_test/batch_test.module b/core/modules/system/tests/modules/batch_test/batch_test.module
index 0dbbff8..ba8b273 100644
--- a/core/modules/system/tests/modules/batch_test/batch_test.module
+++ b/core/modules/system/tests/modules/batch_test/batch_test.module
@@ -15,57 +15,6 @@ function batch_test_menu() {
     'title' => 'Batch test',
     'route_name' => 'batch_test.test_form',
   );
-  // Simple form: one submit handler, setting a batch.
-  $items['batch-test/simple'] = array(
-    'title' => 'Simple',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-    'weight' => 0,
-  );
-  // Multistep form: two steps, each setting a batch.
-  $items['batch-test/multistep'] = array(
-    'title' => 'Multistep',
-    'route_name' => 'batch_test.multistep',
-    'type' => MENU_LOCAL_TASK,
-    'weight' => 1,
-  );
-  // Chained form: four submit handlers, several of which set a batch.
-  $items['batch-test/chained'] = array(
-    'title' => 'Chained',
-    'route_name' => 'batch_test.chained',
-    'type' => MENU_LOCAL_TASK,
-    'weight' => 2,
-  );
-  // Programmatic form: the page submits the 'Chained' form through
-  // drupal_form_submit().
-  $items['batch-test/programmatic'] = array(
-    'route_name' => 'batch_test.programmatic',
-    'type' => MENU_LOCAL_TASK,
-    'weight' => 3,
-  );
-  // No form: fire a batch simply by accessing a page.
-  $items['batch-test/no-form'] = array(
-    'route_name' => 'batch_test.no_form',
-    'type' => MENU_LOCAL_TASK,
-    'weight' => 4,
-  );
-  // No form: fire a batch; return > 100% complete
-  $items['batch-test/large-percentage'] = array(
-    'route_name' => 'batch_test.large_percentage',
-    'type' => MENU_LOCAL_TASK,
-    'weight' => 5,
-  );
-  // Tests programmatic form submission within a batch operation.
-  $items['batch-test/nested-programmatic'] = array(
-    'route_name' => 'batch_test.nested_programmatic',
-    'type' => MENU_LOCAL_TASK,
-    'weight' => 6,
-  );
-  // Landing page to test redirects.
-  $items['batch-test/redirect'] = array(
-    'route_name' => 'batch_test.redirect',
-    'type' => MENU_LOCAL_TASK,
-    'weight' => 7,
-  );
 
   return $items;
 }
diff --git a/core/modules/taxonomy/taxonomy.module b/core/modules/taxonomy/taxonomy.module
index c5f6153..1db21da 100644
--- a/core/modules/taxonomy/taxonomy.module
+++ b/core/modules/taxonomy/taxonomy.module
@@ -260,15 +260,6 @@ function taxonomy_menu() {
     'title callback' => 'entity_page_label',
     'title arguments' => array(4),
   );
-  $items['admin/structure/taxonomy/manage/%taxonomy_vocabulary/list'] = array(
-    'title' => 'List',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
-  $items['admin/structure/taxonomy/manage/%taxonomy_vocabulary/edit'] = array(
-    'title' => 'Edit',
-    'route_name' => 'taxonomy.vocabulary_edit',
-    'type' => MENU_LOCAL_TASK,
-  );
 
   return $items;
 }
diff --git a/core/modules/user/user.local_tasks.yml b/core/modules/user/user.local_tasks.yml
index c418f0b..91553d0 100644
--- a/core/modules/user/user.local_tasks.yml
+++ b/core/modules/user/user.local_tasks.yml
@@ -41,3 +41,13 @@ user.edit:
   route_name: user.edit
   tab_root_id: user.view
   title: Edit
+
+user.admin_account:
+  title: List
+  route_name: user.admin_account
+  tab_root_id: user.admin_account
+
+user.admin_permissions:
+  title: Permissions
+  route_name: user.admin_permissions
+  tab_root_id: user.admin_account
diff --git a/core/modules/user/user.module b/core/modules/user/user.module
index 5751f02..4d0f2f7 100644
--- a/core/modules/user/user.module
+++ b/core/modules/user/user.module
@@ -770,16 +770,13 @@ function user_menu() {
     'position' => 'left',
     'weight' => -4,
   );
-  $items['admin/people/list'] = array(
-    'title' => 'List',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
+
   // Permissions and role forms.
   $items['admin/people/permissions'] = array(
     'title' => 'Permissions',
     'description' => 'Determine access to features by selecting permissions for roles.',
     'route_name' => 'user.admin_permissions',
-    'type' => MENU_LOCAL_TASK,
+    'type' => MENU_SIBLING_LOCAL_TASK,
   );
 
   $items['admin/people/roles/manage/%user_role'] = array(