diff --git a/Library/Homebrew/dev-cmd/audit.rb b/Library/Homebrew/dev-cmd/audit.rb
index b6547b7d40..b2434cd58a 100644
--- a/Library/Homebrew/dev-cmd/audit.rb
+++ b/Library/Homebrew/dev-cmd/audit.rb
@@ -16,6 +16,7 @@ require "missing_formula"
 require "digest"
 require "cli/parser"
 require "json"
+require "tap_auditor"
 
 module Homebrew
   extend T::Sig
@@ -1190,62 +1191,4 @@ module Homebrew
       @problems << text
     end
   end
-
-  class TapAuditor
-    attr_reader :name, :path, :tap_audit_exceptions, :problems
-
-    def initialize(tap, strict:)
-      @name                 = tap.name
-      @path                 = tap.path
-      @tap_audit_exceptions = tap.audit_exceptions
-      @problems             = []
-    end
-
-    def audit
-      audit_json_files
-      audit_tap_audit_exceptions
-    end
-
-    def audit_json_files
-      json_patterns = Tap::HOMEBREW_TAP_JSON_FILES.map { |pattern| @path/pattern }
-      Pathname.glob(json_patterns).each do |file|
-        JSON.parse file.read
-      rescue JSON::ParserError
-        problem "#{file.to_s.delete_prefix("#{@path}/")} contains invalid JSON"
-      end
-    end
-
-    def audit_tap_audit_exceptions
-      @tap_audit_exceptions.each do |list_name, formula_names|
-        unless [Hash, Array].include? formula_names.class
-          problem <<~EOS
-            audit_exceptions/#{list_name}.json should contain a JSON array
-            of formula names or a JSON object mapping formula names to values
-          EOS
-          next
-        end
-
-        formula_names = formula_names.keys if formula_names.is_a? Hash
-
-        invalid_formulae = []
-        formula_names.each do |name|
-          invalid_formulae << name if Formula[name].tap != @name
-        rescue FormulaUnavailableError
-          invalid_formulae << name
-        end
-
-        next if invalid_formulae.empty?
-
-        problem <<~EOS
-          audit_exceptions/#{list_name}.json references
-          formulae that are not found in the #{@name} tap.
-          Invalid formulae: #{invalid_formulae.join(", ")}
-        EOS
-      end
-    end
-
-    def problem(message, location: nil)
-      @problems << ({ message: message, location: location })
-    end
-  end
 end
diff --git a/Library/Homebrew/tap_auditor.rb b/Library/Homebrew/tap_auditor.rb
new file mode 100644
index 0000000000..e765af9c78
--- /dev/null
+++ b/Library/Homebrew/tap_auditor.rb
@@ -0,0 +1,72 @@
+# typed: true
+# frozen_string_literal: true
+
+module Homebrew
+  # Auditor for checking common violations in taps.
+  #
+  # @api private
+  class TapAuditor
+    extend T::Sig
+
+    attr_reader :name, :path, :tap_audit_exceptions, :problems
+
+    sig { params(tap: Tap, strict: T::Boolean).void }
+    def initialize(tap, strict:)
+      @name                 = tap.name
+      @path                 = tap.path
+      @tap_audit_exceptions = tap.audit_exceptions
+      @problems             = []
+    end
+
+    sig { void }
+    def audit
+      audit_json_files
+      audit_tap_audit_exceptions
+    end
+
+    sig { void }
+    def audit_json_files
+      json_patterns = Tap::HOMEBREW_TAP_JSON_FILES.map { |pattern| @path/pattern }
+      Pathname.glob(json_patterns).each do |file|
+        JSON.parse file.read
+      rescue JSON::ParserError
+        problem "#{file.to_s.delete_prefix("#{@path}/")} contains invalid JSON"
+      end
+    end
+
+    sig { void }
+    def audit_tap_audit_exceptions
+      @tap_audit_exceptions.each do |list_name, formula_names|
+        unless [Hash, Array].include? formula_names.class
+          problem <<~EOS
+            audit_exceptions/#{list_name}.json should contain a JSON array
+            of formula names or a JSON object mapping formula names to values
+          EOS
+          next
+        end
+
+        formula_names = formula_names.keys if formula_names.is_a? Hash
+
+        invalid_formulae = []
+        formula_names.each do |name|
+          invalid_formulae << name if Formula[name].tap != @name
+        rescue FormulaUnavailableError
+          invalid_formulae << name
+        end
+
+        next if invalid_formulae.empty?
+
+        problem <<~EOS
+          audit_exceptions/#{list_name}.json references
+          formulae that are not found in the #{@name} tap.
+          Invalid formulae: #{invalid_formulae.join(", ")}
+        EOS
+      end
+    end
+
+    sig { params(message: String).void }
+    def problem(message)
+      @problems << ({ message: message, location: nil })
+    end
+  end
+end