diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 0d0fbfac9..02356fdbe 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -393,30 +393,6 @@ RSpec/MessageSpies:
     - 'spec/spec_helper.rb'
     - 'spec/validators/status_length_validator_spec.rb'
 
-RSpec/MissingExampleGroupArgument:
-  Exclude:
-    - 'spec/controllers/accounts_controller_spec.rb'
-    - 'spec/controllers/activitypub/collections_controller_spec.rb'
-    - 'spec/controllers/admin/statuses_controller_spec.rb'
-    - 'spec/controllers/admin/users/roles_controller_spec.rb'
-    - 'spec/controllers/api/v1/accounts_controller_spec.rb'
-    - 'spec/controllers/api/v1/admin/account_actions_controller_spec.rb'
-    - 'spec/controllers/api/v1/admin/domain_allows_controller_spec.rb'
-    - 'spec/controllers/api/v1/statuses_controller_spec.rb'
-    - 'spec/controllers/auth/registrations_controller_spec.rb'
-    - 'spec/features/log_in_spec.rb'
-    - 'spec/lib/activitypub/activity/undo_spec.rb'
-    - 'spec/lib/status_reach_finder_spec.rb'
-    - 'spec/models/account_spec.rb'
-    - 'spec/models/email_domain_block_spec.rb'
-    - 'spec/models/trends/statuses_spec.rb'
-    - 'spec/models/trends/tags_spec.rb'
-    - 'spec/models/user_role_spec.rb'
-    - 'spec/models/user_spec.rb'
-    - 'spec/services/fetch_link_card_service_spec.rb'
-    - 'spec/services/notify_service_spec.rb'
-    - 'spec/services/process_mentions_service_spec.rb'
-
 RSpec/MultipleExpectations:
   Max: 19
 
diff --git a/spec/controllers/accounts_controller_spec.rb b/spec/controllers/accounts_controller_spec.rb
index 366756480..5a8585b06 100644
--- a/spec/controllers/accounts_controller_spec.rb
+++ b/spec/controllers/accounts_controller_spec.rb
@@ -99,7 +99,7 @@ RSpec.describe AccountsController do
         end
       end
 
-      context do
+      context 'with a normal account in an HTML request' do
         before do
           get :show, params: { username: account.username, format: format }
         end
@@ -173,7 +173,7 @@ RSpec.describe AccountsController do
         end
       end
 
-      context do
+      context 'with a normal account in a JSON request' do
         before do
           get :show, params: { username: account.username, format: format }
         end
@@ -314,7 +314,7 @@ RSpec.describe AccountsController do
         it_behaves_like 'cacheable response'
       end
 
-      context do
+      context 'with a normal account in an RSS request' do
         before do
           get :show, params: { username: account.username, format: format }
         end
diff --git a/spec/controllers/activitypub/collections_controller_spec.rb b/spec/controllers/activitypub/collections_controller_spec.rb
index 887847488..e2802cf56 100644
--- a/spec/controllers/activitypub/collections_controller_spec.rb
+++ b/spec/controllers/activitypub/collections_controller_spec.rb
@@ -88,7 +88,7 @@ RSpec.describe ActivityPub::CollectionsController do
       context 'with signature' do
         let(:remote_account) { Fabricate(:account, domain: 'example.com') }
 
-        context do
+        context 'when getting a featured resource' do
           before do
             get :show, params: { id: 'featured', account_username: account.username }
           end
diff --git a/spec/controllers/admin/statuses_controller_spec.rb b/spec/controllers/admin/statuses_controller_spec.rb
index fc27f7147..7171c0e88 100644
--- a/spec/controllers/admin/statuses_controller_spec.rb
+++ b/spec/controllers/admin/statuses_controller_spec.rb
@@ -20,7 +20,7 @@ describe Admin::StatusesController do
   end
 
   describe 'GET #index' do
-    context do
+    context 'with a valid account' do
       before do
         get :index, params: { account_id: account.id }
       end
diff --git a/spec/controllers/admin/users/roles_controller_spec.rb b/spec/controllers/admin/users/roles_controller_spec.rb
index fe2cee01b..97f69a0b0 100644
--- a/spec/controllers/admin/users/roles_controller_spec.rb
+++ b/spec/controllers/admin/users/roles_controller_spec.rb
@@ -40,7 +40,7 @@ describe Admin::Users::RolesController do
       put :update, params: { user_id: user.id, user: { role_id: selected_role.id } }
     end
 
-    context do
+    context 'with manage roles permissions' do
       let(:permissions) { UserRole::FLAGS[:manage_roles] }
       let(:position) { 1 }
 
diff --git a/spec/controllers/api/v1/accounts_controller_spec.rb b/spec/controllers/api/v1/accounts_controller_spec.rb
index 1cca69de7..992fb0e89 100644
--- a/spec/controllers/api/v1/accounts_controller_spec.rb
+++ b/spec/controllers/api/v1/accounts_controller_spec.rb
@@ -73,7 +73,7 @@ RSpec.describe Api::V1::AccountsController do
     let(:scopes) { 'write:follows' }
     let(:other_account) { Fabricate(:account, username: 'bob', locked: locked) }
 
-    context do
+    context 'when posting to an other account' do
       before do
         post :follow, params: { id: other_account.id }
       end
diff --git a/spec/controllers/api/v1/admin/account_actions_controller_spec.rb b/spec/controllers/api/v1/admin/account_actions_controller_spec.rb
index 1c976455e..0f39a80b1 100644
--- a/spec/controllers/api/v1/admin/account_actions_controller_spec.rb
+++ b/spec/controllers/api/v1/admin/account_actions_controller_spec.rb
@@ -32,7 +32,7 @@ RSpec.describe Api::V1::Admin::AccountActionsController do
   end
 
   describe 'POST #create' do
-    context do
+    context 'with type of disable' do
       before do
         post :create, params: { account_id: account.id, type: 'disable' }
       end
diff --git a/spec/controllers/api/v1/admin/domain_allows_controller_spec.rb b/spec/controllers/api/v1/admin/domain_allows_controller_spec.rb
index ca63ea5a7..69aeb6451 100644
--- a/spec/controllers/api/v1/admin/domain_allows_controller_spec.rb
+++ b/spec/controllers/api/v1/admin/domain_allows_controller_spec.rb
@@ -96,7 +96,7 @@ RSpec.describe Api::V1::Admin::DomainAllowsController do
   describe 'POST #create' do
     let!(:domain_allow) { Fabricate(:domain_allow, domain: 'example.com') }
 
-    context do
+    context 'with a valid domain' do
       before do
         post :create, params: { domain: 'foo.bar.com' }
       end
diff --git a/spec/controllers/api/v1/statuses_controller_spec.rb b/spec/controllers/api/v1/statuses_controller_spec.rb
index ab6f80a61..c2bdba9ac 100644
--- a/spec/controllers/api/v1/statuses_controller_spec.rb
+++ b/spec/controllers/api/v1/statuses_controller_spec.rb
@@ -120,7 +120,7 @@ RSpec.describe Api::V1::StatusesController do
     describe 'POST #create' do
       let(:scopes) { 'write:statuses' }
 
-      context do
+      context 'with a basic status body' do
         before do
           post :create, params: { status: 'Hello world' }
         end
diff --git a/spec/controllers/auth/registrations_controller_spec.rb b/spec/controllers/auth/registrations_controller_spec.rb
index b52d7c6ce..ec82cd07b 100644
--- a/spec/controllers/auth/registrations_controller_spec.rb
+++ b/spec/controllers/auth/registrations_controller_spec.rb
@@ -79,7 +79,7 @@ RSpec.describe Auth::RegistrationsController do
       request.env['devise.mapping'] = Devise.mappings[:user]
     end
 
-    context do
+    context 'with open registrations' do
       around do |example|
         registrations_mode = Setting.registrations_mode
         example.run
@@ -111,7 +111,7 @@ RSpec.describe Auth::RegistrationsController do
       end
     end
 
-    context do
+    context 'when an accept language is present in headers' do
       subject do
         Setting.registrations_mode = 'open'
         request.headers['Accept-Language'] = accept_language
diff --git a/spec/features/log_in_spec.rb b/spec/features/log_in_spec.rb
index 934575ea6..c64e19d2b 100644
--- a/spec/features/log_in_spec.rb
+++ b/spec/features/log_in_spec.rb
@@ -32,7 +32,7 @@ describe 'Log in' do
     expect(subject).to have_css('.flash-message', text: failure_message('invalid'))
   end
 
-  context do
+  context 'when confirmed at is nil' do
     let(:confirmed_at) { nil }
 
     it 'A unconfirmed user is able to log in' do
diff --git a/spec/lib/activitypub/activity/undo_spec.rb b/spec/lib/activitypub/activity/undo_spec.rb
index b4cbc7196..58e71fc4e 100644
--- a/spec/lib/activitypub/activity/undo_spec.rb
+++ b/spec/lib/activitypub/activity/undo_spec.rb
@@ -31,7 +31,7 @@ RSpec.describe ActivityPub::Activity::Undo do
         }
       end
 
-      context do
+      context 'when not atomUri' do
         before do
           Fabricate(:status, reblog: status, account: sender, uri: 'bar')
         end
diff --git a/spec/lib/status_reach_finder_spec.rb b/spec/lib/status_reach_finder_spec.rb
index c53ac2799..7181717dc 100644
--- a/spec/lib/status_reach_finder_spec.rb
+++ b/spec/lib/status_reach_finder_spec.rb
@@ -71,10 +71,8 @@ describe StatusReachFinder do
           bob.statuses.create!(thread: status, text: 'Hoge')
         end
 
-        context do
-          it 'includes the inbox of the replier' do
-            expect(subject.inboxes).to include 'https://foo.bar/inbox'
-          end
+        it 'includes the inbox of the replier' do
+          expect(subject.inboxes).to include 'https://foo.bar/inbox'
         end
 
         context 'when status is not public' do
@@ -90,10 +88,8 @@ describe StatusReachFinder do
         let(:bob) { Fabricate(:account, username: 'bob', domain: 'foo.bar', protocol: :activitypub, inbox_url: 'https://foo.bar/inbox') }
         let(:parent_status) { Fabricate(:status, account: bob) }
 
-        context do
-          it 'includes the inbox of the replied-to account' do
-            expect(subject.inboxes).to include 'https://foo.bar/inbox'
-          end
+        it 'includes the inbox of the replied-to account' do
+          expect(subject.inboxes).to include 'https://foo.bar/inbox'
         end
 
         context 'when status is not public and replied-to account is not mentioned' do
diff --git a/spec/models/account_spec.rb b/spec/models/account_spec.rb
index d966bffa9..7cd914774 100644
--- a/spec/models/account_spec.rb
+++ b/spec/models/account_spec.rb
@@ -3,7 +3,7 @@
 require 'rails_helper'
 
 RSpec.describe Account do
-  context do
+  context 'with an account record' do
     subject { Fabricate(:account) }
 
     let(:bob) { Fabricate(:account, username: 'bob') }
diff --git a/spec/models/email_domain_block_spec.rb b/spec/models/email_domain_block_spec.rb
index 9d9c74887..5874c5e53 100644
--- a/spec/models/email_domain_block_spec.rb
+++ b/spec/models/email_domain_block_spec.rb
@@ -9,7 +9,7 @@ RSpec.describe EmailDomainBlock do
     context 'when given an e-mail address' do
       let(:input) { "foo@#{domain}" }
 
-      context do
+      context 'with a top level domain' do
         let(:domain) { 'example.com' }
 
         it 'returns true if the domain is blocked' do
@@ -23,7 +23,7 @@ RSpec.describe EmailDomainBlock do
         end
       end
 
-      context do
+      context 'with a subdomain' do
         let(:domain) { 'mail.example.com' }
 
         it 'returns true if it is a subdomain of a blocked domain' do
diff --git a/spec/models/trends/statuses_spec.rb b/spec/models/trends/statuses_spec.rb
index 29a20a595..cea5dc5e0 100644
--- a/spec/models/trends/statuses_spec.rb
+++ b/spec/models/trends/statuses_spec.rb
@@ -81,7 +81,7 @@ RSpec.describe Trends::Statuses do
       4.times { reblog(status3, today) }
     end
 
-    context do
+    context 'when status trends are refreshed' do
       before do
         subject.refresh(today)
       end
diff --git a/spec/models/trends/tags_spec.rb b/spec/models/trends/tags_spec.rb
index 09ac918d0..79cdee346 100644
--- a/spec/models/trends/tags_spec.rb
+++ b/spec/models/trends/tags_spec.rb
@@ -44,7 +44,7 @@ RSpec.describe Trends::Tags do
       4.times  { |i| subject.add(tag2, i, today) }
     end
 
-    context do
+    context 'when tag trends are refreshed' do
       before do
         subject.refresh(yesterday + 12.hours)
         subject.refresh(at_time)
diff --git a/spec/models/user_role_spec.rb b/spec/models/user_role_spec.rb
index 16bb4358e..27b967414 100644
--- a/spec/models/user_role_spec.rb
+++ b/spec/models/user_role_spec.rb
@@ -118,10 +118,8 @@ RSpec.describe UserRole do
       end
     end
 
-    context do
-      it 'returns permissions combined with the everyone role' do
-        expect(subject.computed_permissions).to eq described_class.everyone.permissions
-      end
+    it 'returns permissions combined with the everyone role' do
+      expect(subject.computed_permissions).to eq described_class.everyone.permissions
     end
   end
 
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index 554e7efb6..bb61c02a6 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -363,7 +363,7 @@ RSpec.describe User do
       expect(user).to_not be_valid
     end
 
-    context do
+    context 'with a blacklisted subdomain' do
       around do |example|
         old_blacklist = Rails.configuration.x.email_blacklist
         example.run
diff --git a/spec/services/fetch_link_card_service_spec.rb b/spec/services/fetch_link_card_service_spec.rb
index 6495b323c..133d66441 100644
--- a/spec/services/fetch_link_card_service_spec.rb
+++ b/spec/services/fetch_link_card_service_spec.rb
@@ -20,7 +20,7 @@ RSpec.describe FetchLinkCardService, type: :service do
   end
 
   context 'with a local status' do
-    context do
+    context 'with an IDN url' do
       let(:status) { Fabricate(:status, text: 'Check out http://example.中国') }
 
       it 'works with IDN URLs' do
@@ -28,7 +28,7 @@ RSpec.describe FetchLinkCardService, type: :service do
       end
     end
 
-    context do
+    context 'with an SJIS url' do
       let(:status) { Fabricate(:status, text: 'Check out http://example.com/sjis') }
 
       it 'works with SJIS' do
@@ -37,7 +37,7 @@ RSpec.describe FetchLinkCardService, type: :service do
       end
     end
 
-    context do
+    context 'with invalid SJIS url' do
       let(:status) { Fabricate(:status, text: 'Check out http://example.com/sjis_with_wrong_charset') }
 
       it 'works with SJIS even with wrong charset header' do
@@ -46,7 +46,7 @@ RSpec.describe FetchLinkCardService, type: :service do
       end
     end
 
-    context do
+    context 'with an koi8-r url' do
       let(:status) { Fabricate(:status, text: 'Check out http://example.com/koi8-r') }
 
       it 'works with koi8-r' do
@@ -55,7 +55,7 @@ RSpec.describe FetchLinkCardService, type: :service do
       end
     end
 
-    context do
+    context 'with a windows-1251 url' do
       let(:status) { Fabricate(:status, text: 'Check out http://example.com/windows-1251') }
 
       it 'works with windows-1251' do
@@ -64,7 +64,7 @@ RSpec.describe FetchLinkCardService, type: :service do
       end
     end
 
-    context do
+    context 'with a japanese path url' do
       let(:status) { Fabricate(:status, text: 'テストhttp://example.com/日本語') }
 
       it 'works with Japanese path string' do
@@ -73,7 +73,7 @@ RSpec.describe FetchLinkCardService, type: :service do
       end
     end
 
-    context do
+    context 'with a hyphen-suffixed url' do
       let(:status) { Fabricate(:status, text: 'test http://example.com/test-') }
 
       it 'works with a URL ending with a hyphen' do
@@ -81,7 +81,7 @@ RSpec.describe FetchLinkCardService, type: :service do
       end
     end
 
-    context do
+    context 'with an isolated url' do
       let(:status) { Fabricate(:status, text: 'testhttp://example.com/sjis') }
 
       it 'does not fetch URLs with not isolated from their surroundings' do
@@ -89,7 +89,7 @@ RSpec.describe FetchLinkCardService, type: :service do
       end
     end
 
-    context do
+    context 'with a url that has a caret' do
       let(:status) { Fabricate(:status, text: 'test http://example.com/test?data=file.gpx^1') }
 
       it 'does fetch URLs with a caret in search params' do
diff --git a/spec/services/notify_service_spec.rb b/spec/services/notify_service_spec.rb
index 8c99431fa..8fcb58658 100644
--- a/spec/services/notify_service_spec.rb
+++ b/spec/services/notify_service_spec.rb
@@ -127,7 +127,7 @@ RSpec.describe NotifyService, type: :service do
     end
   end
 
-  context do
+  context 'with muted and blocked users' do
     let(:asshole)  { Fabricate(:account, username: 'asshole') }
     let(:reply_to) { Fabricate(:status, account: asshole) }
     let(:activity) { Fabricate(:mention, account: recipient, status: Fabricate(:status, account: sender, thread: reply_to)) }
@@ -144,7 +144,7 @@ RSpec.describe NotifyService, type: :service do
     end
   end
 
-  context do
+  context 'with sender as recipient' do
     let(:sender) { recipient }
 
     it 'does not notify when recipient is the sender' do
diff --git a/spec/services/process_mentions_service_spec.rb b/spec/services/process_mentions_service_spec.rb
index a28b6db40..0db73c41f 100644
--- a/spec/services/process_mentions_service_spec.rb
+++ b/spec/services/process_mentions_service_spec.rb
@@ -37,7 +37,7 @@ RSpec.describe ProcessMentionsService, type: :service do
     let(:status) { Fabricate(:status, account: account, text: "Hello @#{remote_user.acct}", visibility: :public) }
 
     context 'with ActivityPub' do
-      context do
+      context 'with a valid remote user' do
         let!(:remote_user) { Fabricate(:account, username: 'remote_user', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox') }
 
         before do