diff --git a/Library/Homebrew/cask/cmd/abstract_command.rb b/Library/Homebrew/cask/cmd/abstract_command.rb
index 96cdac5bc9..23e972087c 100644
--- a/Library/Homebrew/cask/cmd/abstract_command.rb
+++ b/Library/Homebrew/cask/cmd/abstract_command.rb
@@ -1,4 +1,4 @@
-# typed: true
+# typed: false
 # frozen_string_literal: true
 
 require "search"
@@ -40,12 +40,12 @@ module Cask
 
       sig { returns(String) }
       def self.command_name
-        @command_name ||= T.must(name).sub(/^.*:/, "").gsub(/(.)([A-Z])/, '\1_\2').downcase
+        @command_name ||= name.sub(/^.*:/, "").gsub(/(.)([A-Z])/, '\1_\2').downcase
       end
 
       sig { returns(T::Boolean) }
       def self.abstract?
-        T.must(name).split("::").fetch(-1).match?(/^Abstract[^a-z]/)
+        name.split("::").last.match?(/^Abstract[^a-z]/)
       end
 
       sig { returns(T::Boolean) }
@@ -58,6 +58,11 @@ module Cask
         parser.generate_help_text
       end
 
+      sig { returns(String) }
+      def self.short_description
+        description[/\A[^.]*\./]
+      end
+
       def self.run(*args)
         new(*args).run
       end
diff --git a/Library/Homebrew/cask/cmd/audit.rb b/Library/Homebrew/cask/cmd/audit.rb
index 80fadd1fe9..6326446fcf 100644
--- a/Library/Homebrew/cask/cmd/audit.rb
+++ b/Library/Homebrew/cask/cmd/audit.rb
@@ -1,4 +1,4 @@
-# typed: true
+# typed: false
 # frozen_string_literal: true
 
 require "utils/github/actions"
@@ -13,7 +13,6 @@ module Cask
 
       def self.parser
         super do
-          T.bind(self, Homebrew::CLI::Parser)
           switch "--[no-]download",
                  description: "Audit the downloaded file"
           switch "--[no-]appcast",
@@ -45,7 +44,7 @@ module Cask
         end
         casks = casks.map { |c| CaskLoader.load(c, config: Config.from_args(args)) }
         any_named_args = casks.any?
-        casks = Cask.all if casks.empty?
+        casks = Cask.to_a if casks.empty?
 
         results = self.class.audit_casks(
           *casks,
diff --git a/Library/Homebrew/cask/cmd/fetch.rb b/Library/Homebrew/cask/cmd/fetch.rb
index 784cd06f8e..da0eb66295 100644
--- a/Library/Homebrew/cask/cmd/fetch.rb
+++ b/Library/Homebrew/cask/cmd/fetch.rb
@@ -1,4 +1,4 @@
-# typed: true
+# typed: false
 # frozen_string_literal: true
 
 module Cask
@@ -11,7 +11,6 @@ module Cask
 
       def self.parser
         super do
-          T.bind(self, Homebrew::CLI::Parser)
           switch "--force",
                  description: "Force redownloading even if files already exist in local cache."
         end
diff --git a/Library/Homebrew/cask/cmd/install.rb b/Library/Homebrew/cask/cmd/install.rb
index 11cf1f9a1d..efd84d9365 100644
--- a/Library/Homebrew/cask/cmd/install.rb
+++ b/Library/Homebrew/cask/cmd/install.rb
@@ -1,4 +1,4 @@
-# typed: true
+# typed: false
 # frozen_string_literal: true
 
 require "cask_dependent"
@@ -27,7 +27,6 @@ module Cask
 
       def self.parser(&block)
         super do
-          T.bind(self, Homebrew::CLI::Parser)
           switch "--force",
                  description: "Force overwriting existing files."
 
diff --git a/Library/Homebrew/cask/cmd/uninstall.rb b/Library/Homebrew/cask/cmd/uninstall.rb
index 67be493145..1700482a65 100644
--- a/Library/Homebrew/cask/cmd/uninstall.rb
+++ b/Library/Homebrew/cask/cmd/uninstall.rb
@@ -1,4 +1,4 @@
-# typed: true
+# typed: false
 # frozen_string_literal: true
 
 module Cask
@@ -11,7 +11,6 @@ module Cask
 
       def self.parser
         super do
-          T.bind(self, Homebrew::CLI::Parser)
           switch "--force",
                  description: "Uninstall even if the <cask> is not installed, overwrite " \
                               "existing files and ignore errors when removing files."
diff --git a/Library/Homebrew/cask/cmd/upgrade.rb b/Library/Homebrew/cask/cmd/upgrade.rb
index 134563702a..15dd0d6f08 100644
--- a/Library/Homebrew/cask/cmd/upgrade.rb
+++ b/Library/Homebrew/cask/cmd/upgrade.rb
@@ -1,4 +1,4 @@
-# typed: true
+# typed: false
 # frozen_string_literal: true
 
 require "env_config"
@@ -30,7 +30,6 @@ module Cask
       sig { returns(Homebrew::CLI::Parser) }
       def self.parser
         super do
-          T.bind(self, Homebrew::CLI::Parser)
           switch "--force",
                  description: "Force overwriting existing files."
           switch "--dry-run",
@@ -177,9 +176,7 @@ module Cask
 
         return true if caught_exceptions.empty?
         raise MultipleCaskErrors, caught_exceptions if caught_exceptions.count > 1
-        raise caught_exceptions.fetch(0) if caught_exceptions.count == 1
-
-        false
+        raise caught_exceptions.first if caught_exceptions.count == 1
       end
 
       def self.upgrade_cask(
diff --git a/Library/Homebrew/cask/cmd/zap.rb b/Library/Homebrew/cask/cmd/zap.rb
index 31460340b2..b06bfa4223 100644
--- a/Library/Homebrew/cask/cmd/zap.rb
+++ b/Library/Homebrew/cask/cmd/zap.rb
@@ -1,4 +1,4 @@
-# typed: true
+# typed: false
 # frozen_string_literal: true
 
 module Cask
@@ -11,7 +11,6 @@ module Cask
 
       def self.parser
         super do
-          T.bind(self, Homebrew::CLI::Parser)
           switch "--force",
                  description: "Ignore errors when removing files."
         end