diff --git a/doc/development/backend/ruby_style_guide.md b/doc/development/backend/ruby_style_guide.md
index 27380805df99434d46084acc4c50b09284e88c9a..595e1871cdda0479921ba1c35e7ba39cbcb103c1 100644
--- a/doc/development/backend/ruby_style_guide.md
+++ b/doc/development/backend/ruby_style_guide.md
@@ -337,11 +337,13 @@ For more information, see:
 - [Functional patterns](https://gitlab.com/gitlab-org/gitlab/-/tree/master/ee/lib/remote_development#functional-patterns)
 - [Railway-oriented programming and the `Result` class](https://gitlab.com/gitlab-org/gitlab/-/tree/master/ee/lib/remote_development#railway-oriented-programming-and-the-result-class)
 
-## ApplicationRecord / ActiveRecord model scopes
+## ApplicationRecord / ActiveRecord 
+
+### Model scopes
 
 When creating a new scope, consider the following prefixes.
 
-### `for_` 
+#### `for_` 
 
 For scopes which filter `where(belongs_to: record)`.
 For example:
@@ -351,7 +353,7 @@ scope :for_project, ->(project) { where(project: project) }
 Timelogs.for_project(project)
 ```
 
-### `with_`
+#### `with_`
 
 For scopes which `joins`, `includes`, or filters `where(has_one: record)` or `where(has_many: record)` or `where(boolean condition)`
 For example:
@@ -374,7 +376,7 @@ scope :undeleted, -> { where('policy_index >= 0') }
 Security::Policy.undeleted
 ```
 
-### `order_by_`
+#### `order_by_`
 
 For scopes which `order`.
 For example:
@@ -386,3 +388,7 @@ Namespace.order_by_name
 scope :order_by_updated_at, ->(direction = :asc) { order(updated_at: direction) }
 Project.order_by_updated_at(:desc)
 ```
+
+### Error translation / internationalization / externalization
+
+We should...