diff --git a/Library/Homebrew/abstract_command.rb b/Library/Homebrew/abstract_command.rb
index 95b086f022..cd4f299749 100644
--- a/Library/Homebrew/abstract_command.rb
+++ b/Library/Homebrew/abstract_command.rb
@@ -1,12 +1,15 @@
 # typed: strong
 # frozen_string_literal: true
 
+require "cli/parser"
+
 module Homebrew
   # Subclass this to implement a `brew` command. This is preferred to declaring a named function in the `Homebrew`
   # module, because:
   # - Each Command lives in an isolated namespace.
   # - Each Command implements a defined interface.
   # - `args` is available as an ivar, and thus does not need to be passed as an argument to helper methods.
+  # - Subclasses no longer need to reference CLI::Parser directly.
   #
   # To subclass, implement a `run` method and provide a `cmd_args` block to document the command and its allowed args.
   # To generate method signatures for command args, run `brew typecheck --update`.
diff --git a/Library/Homebrew/cmd/analytics.rb b/Library/Homebrew/cmd/analytics.rb
index 134fb4b249..6531b823c8 100644
--- a/Library/Homebrew/cmd/analytics.rb
+++ b/Library/Homebrew/cmd/analytics.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 
 module Homebrew
   module Cmd
diff --git a/Library/Homebrew/dev-cmd/audit.rb b/Library/Homebrew/dev-cmd/audit.rb
index 6e29e4fa37..a7bbe9597e 100644
--- a/Library/Homebrew/dev-cmd/audit.rb
+++ b/Library/Homebrew/dev-cmd/audit.rb
@@ -15,7 +15,6 @@ require "style"
 require "date"
 require "missing_formula"
 require "digest"
-require "cli/parser"
 require "json"
 require "formula_auditor"
 require "tap_auditor"
diff --git a/Library/Homebrew/dev-cmd/bottle.rb b/Library/Homebrew/dev-cmd/bottle.rb
index 14462a0d2c..754c3156ef 100644
--- a/Library/Homebrew/dev-cmd/bottle.rb
+++ b/Library/Homebrew/dev-cmd/bottle.rb
@@ -8,7 +8,6 @@ require "utils/bottles"
 require "tab"
 require "keg"
 require "formula_versions"
-require "cli/parser"
 require "utils/inreplace"
 require "erb"
 require "utils/gzip"
diff --git a/Library/Homebrew/dev-cmd/bump-cask-pr.rb b/Library/Homebrew/dev-cmd/bump-cask-pr.rb
index 4f520d67c1..a4552cc767 100644
--- a/Library/Homebrew/dev-cmd/bump-cask-pr.rb
+++ b/Library/Homebrew/dev-cmd/bump-cask-pr.rb
@@ -5,7 +5,6 @@ require "abstract_command"
 require "bump_version_parser"
 require "cask"
 require "cask/download"
-require "cli/parser"
 require "utils/tar"
 
 module Homebrew
diff --git a/Library/Homebrew/dev-cmd/bump-formula-pr.rb b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
index 2c972aab94..fdbaf0bd4e 100644
--- a/Library/Homebrew/dev-cmd/bump-formula-pr.rb
+++ b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
@@ -4,7 +4,6 @@
 require "abstract_command"
 require "fileutils"
 require "formula"
-require "cli/parser"
 require "utils/pypi"
 require "utils/tar"
 
diff --git a/Library/Homebrew/dev-cmd/bump-revision.rb b/Library/Homebrew/dev-cmd/bump-revision.rb
index 2bbf5b085f..4f83e95d86 100644
--- a/Library/Homebrew/dev-cmd/bump-revision.rb
+++ b/Library/Homebrew/dev-cmd/bump-revision.rb
@@ -3,7 +3,6 @@
 
 require "abstract_command"
 require "formula"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/bump-unversioned-casks.rb b/Library/Homebrew/dev-cmd/bump-unversioned-casks.rb
index 47d064ed64..9014f5af52 100644
--- a/Library/Homebrew/dev-cmd/bump-unversioned-casks.rb
+++ b/Library/Homebrew/dev-cmd/bump-unversioned-casks.rb
@@ -5,7 +5,6 @@ require "timeout"
 require "cask/download"
 require "cask/installer"
 require "cask/cask_loader"
-require "cli/parser"
 require "system_command"
 require "tap"
 require "unversioned_cask_checker"
diff --git a/Library/Homebrew/dev-cmd/bump.rb b/Library/Homebrew/dev-cmd/bump.rb
index 3de0bd860a..d28eeb62ba 100644
--- a/Library/Homebrew/dev-cmd/bump.rb
+++ b/Library/Homebrew/dev-cmd/bump.rb
@@ -3,7 +3,6 @@
 
 require "abstract_command"
 require "bump_version_parser"
-require "cli/parser"
 require "livecheck/livecheck"
 
 module Homebrew
diff --git a/Library/Homebrew/dev-cmd/cat.rb b/Library/Homebrew/dev-cmd/cat.rb
index 8b7bbed67a..a5e8180ca6 100644
--- a/Library/Homebrew/dev-cmd/cat.rb
+++ b/Library/Homebrew/dev-cmd/cat.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "fileutils"
 
 module Homebrew
diff --git a/Library/Homebrew/dev-cmd/command.rb b/Library/Homebrew/dev-cmd/command.rb
index 54784a48f0..595e00e4b8 100644
--- a/Library/Homebrew/dev-cmd/command.rb
+++ b/Library/Homebrew/dev-cmd/command.rb
@@ -3,7 +3,6 @@
 
 require "abstract_command"
 require "commands"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/contributions.rb b/Library/Homebrew/dev-cmd/contributions.rb
index 1e0359a24e..efb00fcd34 100644
--- a/Library/Homebrew/dev-cmd/contributions.rb
+++ b/Library/Homebrew/dev-cmd/contributions.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "csv"
 
 module Homebrew
diff --git a/Library/Homebrew/dev-cmd/create.rb b/Library/Homebrew/dev-cmd/create.rb
index 75b8a79ac1..089f65a9c5 100644
--- a/Library/Homebrew/dev-cmd/create.rb
+++ b/Library/Homebrew/dev-cmd/create.rb
@@ -4,7 +4,6 @@
 require "formula"
 require "formula_creator"
 require "missing_formula"
-require "cli/parser"
 require "utils/pypi"
 require "cask/cask_loader"
 
diff --git a/Library/Homebrew/dev-cmd/determine-test-runners.rb b/Library/Homebrew/dev-cmd/determine-test-runners.rb
index 72a63260a0..cba08ded8e 100644
--- a/Library/Homebrew/dev-cmd/determine-test-runners.rb
+++ b/Library/Homebrew/dev-cmd/determine-test-runners.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "test_runner_formula"
 require "github_runner_matrix"
 
diff --git a/Library/Homebrew/dev-cmd/dispatch-build-bottle.rb b/Library/Homebrew/dev-cmd/dispatch-build-bottle.rb
index 29fd01138b..6ec3f3ecc3 100644
--- a/Library/Homebrew/dev-cmd/dispatch-build-bottle.rb
+++ b/Library/Homebrew/dev-cmd/dispatch-build-bottle.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "utils/github"
 
 module Homebrew
diff --git a/Library/Homebrew/dev-cmd/edit.rb b/Library/Homebrew/dev-cmd/edit.rb
index 1892d67502..cbea9d7320 100644
--- a/Library/Homebrew/dev-cmd/edit.rb
+++ b/Library/Homebrew/dev-cmd/edit.rb
@@ -3,7 +3,6 @@
 
 require "abstract_command"
 require "formula"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/extract.rb b/Library/Homebrew/dev-cmd/extract.rb
index f77505a323..3735541c8a 100644
--- a/Library/Homebrew/dev-cmd/extract.rb
+++ b/Library/Homebrew/dev-cmd/extract.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "utils/git"
 require "formulary"
 require "software_spec"
diff --git a/Library/Homebrew/dev-cmd/formula.rb b/Library/Homebrew/dev-cmd/formula.rb
index e0189b4b81..47b0e9783e 100644
--- a/Library/Homebrew/dev-cmd/formula.rb
+++ b/Library/Homebrew/dev-cmd/formula.rb
@@ -3,7 +3,6 @@
 
 require "abstract_command"
 require "formula"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/generate-cask-api.rb b/Library/Homebrew/dev-cmd/generate-cask-api.rb
index 584f46a6a7..9985ac727b 100644
--- a/Library/Homebrew/dev-cmd/generate-cask-api.rb
+++ b/Library/Homebrew/dev-cmd/generate-cask-api.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "cask/cask"
 require "fileutils"
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/generate-formula-api.rb b/Library/Homebrew/dev-cmd/generate-formula-api.rb
index 0036d25bec..5a06a0e0ed 100644
--- a/Library/Homebrew/dev-cmd/generate-formula-api.rb
+++ b/Library/Homebrew/dev-cmd/generate-formula-api.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "fileutils"
 require "formula"
 
diff --git a/Library/Homebrew/dev-cmd/install-bundler-gems.rb b/Library/Homebrew/dev-cmd/install-bundler-gems.rb
index 6ac110609d..a4e5956bce 100644
--- a/Library/Homebrew/dev-cmd/install-bundler-gems.rb
+++ b/Library/Homebrew/dev-cmd/install-bundler-gems.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/irb.rb b/Library/Homebrew/dev-cmd/irb.rb
index 9da9a012fa..18fcc2e010 100644
--- a/Library/Homebrew/dev-cmd/irb.rb
+++ b/Library/Homebrew/dev-cmd/irb.rb
@@ -4,7 +4,6 @@
 require "abstract_command"
 require "formulary"
 require "cask/cask_loader"
-require "cli/parser"
 
 class String
   def f(*args)
diff --git a/Library/Homebrew/dev-cmd/linkage.rb b/Library/Homebrew/dev-cmd/linkage.rb
index 233b028ab8..23462cc98a 100644
--- a/Library/Homebrew/dev-cmd/linkage.rb
+++ b/Library/Homebrew/dev-cmd/linkage.rb
@@ -4,7 +4,6 @@
 require "abstract_command"
 require "cache_store"
 require "linkage_checker"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/livecheck.rb b/Library/Homebrew/dev-cmd/livecheck.rb
index c02deece81..6cad963d55 100644
--- a/Library/Homebrew/dev-cmd/livecheck.rb
+++ b/Library/Homebrew/dev-cmd/livecheck.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "formula"
 require "livecheck/livecheck"
 require "livecheck/strategy"
diff --git a/Library/Homebrew/dev-cmd/pr-automerge.rb b/Library/Homebrew/dev-cmd/pr-automerge.rb
index 6995de1332..2cfb1b989b 100644
--- a/Library/Homebrew/dev-cmd/pr-automerge.rb
+++ b/Library/Homebrew/dev-cmd/pr-automerge.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "utils/github"
 
 module Homebrew
diff --git a/Library/Homebrew/dev-cmd/pr-publish.rb b/Library/Homebrew/dev-cmd/pr-publish.rb
index a6b83183c4..00ba5ca338 100644
--- a/Library/Homebrew/dev-cmd/pr-publish.rb
+++ b/Library/Homebrew/dev-cmd/pr-publish.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "utils/github"
 
 module Homebrew
diff --git a/Library/Homebrew/dev-cmd/pr-pull.rb b/Library/Homebrew/dev-cmd/pr-pull.rb
index d6b714819f..da8444543d 100644
--- a/Library/Homebrew/dev-cmd/pr-pull.rb
+++ b/Library/Homebrew/dev-cmd/pr-pull.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "fileutils"
 require "utils/github"
 require "utils/github/artifacts"
diff --git a/Library/Homebrew/dev-cmd/pr-upload.rb b/Library/Homebrew/dev-cmd/pr-upload.rb
index 540580aae8..7711a141a7 100644
--- a/Library/Homebrew/dev-cmd/pr-upload.rb
+++ b/Library/Homebrew/dev-cmd/pr-upload.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "formula"
 require "github_packages"
 require "github_releases"
diff --git a/Library/Homebrew/dev-cmd/prof.rb b/Library/Homebrew/dev-cmd/prof.rb
index 1242b3eace..c0389d60ef 100644
--- a/Library/Homebrew/dev-cmd/prof.rb
+++ b/Library/Homebrew/dev-cmd/prof.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/release.rb b/Library/Homebrew/dev-cmd/release.rb
index 75fbab3511..badf7ca582 100644
--- a/Library/Homebrew/dev-cmd/release.rb
+++ b/Library/Homebrew/dev-cmd/release.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/ruby.rb b/Library/Homebrew/dev-cmd/ruby.rb
index db071c75a6..db9c9be93c 100644
--- a/Library/Homebrew/dev-cmd/ruby.rb
+++ b/Library/Homebrew/dev-cmd/ruby.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/sh.rb b/Library/Homebrew/dev-cmd/sh.rb
index 6b295dfd93..e4c35c85c6 100644
--- a/Library/Homebrew/dev-cmd/sh.rb
+++ b/Library/Homebrew/dev-cmd/sh.rb
@@ -4,7 +4,6 @@
 require "abstract_command"
 require "extend/ENV"
 require "formula"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/style.rb b/Library/Homebrew/dev-cmd/style.rb
index 58de7af85b..3182430c86 100644
--- a/Library/Homebrew/dev-cmd/style.rb
+++ b/Library/Homebrew/dev-cmd/style.rb
@@ -5,7 +5,6 @@ require "abstract_command"
 require "json"
 require "open3"
 require "style"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/tap-new.rb b/Library/Homebrew/dev-cmd/tap-new.rb
index 1c36553ec0..bb8099a07b 100644
--- a/Library/Homebrew/dev-cmd/tap-new.rb
+++ b/Library/Homebrew/dev-cmd/tap-new.rb
@@ -4,7 +4,6 @@
 require "abstract_command"
 require "fileutils"
 require "tap"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/test.rb b/Library/Homebrew/dev-cmd/test.rb
index b7f2b8dc2f..de847d0ae0 100644
--- a/Library/Homebrew/dev-cmd/test.rb
+++ b/Library/Homebrew/dev-cmd/test.rb
@@ -5,7 +5,6 @@ require "abstract_command"
 require "extend/ENV"
 require "sandbox"
 require "timeout"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/tests.rb b/Library/Homebrew/dev-cmd/tests.rb
index fb948c1013..16c30ef90f 100644
--- a/Library/Homebrew/dev-cmd/tests.rb
+++ b/Library/Homebrew/dev-cmd/tests.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "fileutils"
 require "system_command"
 
diff --git a/Library/Homebrew/dev-cmd/typecheck.rb b/Library/Homebrew/dev-cmd/typecheck.rb
index 4789caa7df..b836b68e57 100644
--- a/Library/Homebrew/dev-cmd/typecheck.rb
+++ b/Library/Homebrew/dev-cmd/typecheck.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "fileutils"
 
 module Homebrew
diff --git a/Library/Homebrew/dev-cmd/unbottled.rb b/Library/Homebrew/dev-cmd/unbottled.rb
index df18a3a21f..359724dfbb 100644
--- a/Library/Homebrew/dev-cmd/unbottled.rb
+++ b/Library/Homebrew/dev-cmd/unbottled.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "formula"
 require "api"
 require "os/mac/xcode"
diff --git a/Library/Homebrew/dev-cmd/unpack.rb b/Library/Homebrew/dev-cmd/unpack.rb
index dcf50f2899..8ecc1c1f2e 100644
--- a/Library/Homebrew/dev-cmd/unpack.rb
+++ b/Library/Homebrew/dev-cmd/unpack.rb
@@ -5,7 +5,6 @@ require "abstract_command"
 require "fileutils"
 require "stringio"
 require "formula"
-require "cli/parser"
 
 module Homebrew
   module DevCmd
diff --git a/Library/Homebrew/dev-cmd/update-license-data.rb b/Library/Homebrew/dev-cmd/update-license-data.rb
index c68fe365e7..5d2ed16ac7 100644
--- a/Library/Homebrew/dev-cmd/update-license-data.rb
+++ b/Library/Homebrew/dev-cmd/update-license-data.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "utils/spdx"
 require "system_command"
 
diff --git a/Library/Homebrew/dev-cmd/update-maintainers.rb b/Library/Homebrew/dev-cmd/update-maintainers.rb
index 1bb8734f55..e21aef44e2 100644
--- a/Library/Homebrew/dev-cmd/update-maintainers.rb
+++ b/Library/Homebrew/dev-cmd/update-maintainers.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "utils/github"
 require "manpages"
 require "system_command"
diff --git a/Library/Homebrew/dev-cmd/update-python-resources.rb b/Library/Homebrew/dev-cmd/update-python-resources.rb
index 50fc287cbe..865103698f 100644
--- a/Library/Homebrew/dev-cmd/update-python-resources.rb
+++ b/Library/Homebrew/dev-cmd/update-python-resources.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "utils/pypi"
 
 module Homebrew
diff --git a/Library/Homebrew/dev-cmd/update-sponsors.rb b/Library/Homebrew/dev-cmd/update-sponsors.rb
index 8d213a503f..248a290413 100644
--- a/Library/Homebrew/dev-cmd/update-sponsors.rb
+++ b/Library/Homebrew/dev-cmd/update-sponsors.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "utils/github"
 require "system_command"
 
diff --git a/Library/Homebrew/dev-cmd/update-test.rb b/Library/Homebrew/dev-cmd/update-test.rb
index 0c2c42a131..c2b637f686 100644
--- a/Library/Homebrew/dev-cmd/update-test.rb
+++ b/Library/Homebrew/dev-cmd/update-test.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 require "fileutils"
 
 module Homebrew
diff --git a/Library/Homebrew/dev-cmd/vendor-gems.rb b/Library/Homebrew/dev-cmd/vendor-gems.rb
index 063fb9242e..792a218be1 100644
--- a/Library/Homebrew/dev-cmd/vendor-gems.rb
+++ b/Library/Homebrew/dev-cmd/vendor-gems.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "abstract_command"
-require "cli/parser"
 
 module Homebrew
   module DevCmd