diff --git a/Library/Homebrew/.rubocop_todo.yml b/Library/Homebrew/.rubocop_todo.yml
index 8029d48cffe1907ce94746060ba0aefeeb8a471f..5bf56b989d838838fb84d22258ba1f0c227f453b 100644
--- a/Library/Homebrew/.rubocop_todo.yml
+++ b/Library/Homebrew/.rubocop_todo.yml
@@ -22,7 +22,6 @@ Style/Documentation:
     - 'utils/gems.rb'
     - 'utils/notability.rb'
     - 'utils/popen.rb'
-    - 'utils/shebang.rb'
     - 'utils/shell.rb'
     - 'utils/livecheck_formula.rb'
     - 'version.rb'
diff --git a/Library/Homebrew/utils/shebang.rb b/Library/Homebrew/utils/shebang.rb
index eda6eec190fd0f5abdc589fdbe8272b961bf55a9..3e126746916da3609df9f0c198a2f5278bba8bd5 100644
--- a/Library/Homebrew/utils/shebang.rb
+++ b/Library/Homebrew/utils/shebang.rb
@@ -1,9 +1,15 @@
 # frozen_string_literal: true
 
 module Utils
+  # Helper functions for manipulating shebang lines.
+  #
+  # @api private
   module Shebang
     module_function
 
+    # Specification on how to rewrite a given shebang.
+    #
+    # @api private
     class RewriteInfo
       attr_reader :regex, :max_length, :replacement
 
@@ -14,6 +20,12 @@ module Utils
       end
     end
 
+    # Rewrite shebang for the given `paths` using the given `rewrite_info`.
+    #
+    # @example
+    #   rewrite_shebang detected_python_shebang, bin/"script.py"
+    #
+    # @api public
     def rewrite_shebang(rewrite_info, *paths)
       paths.each do |f|
         f = Pathname(f)