diff --git a/pyproject.toml b/pyproject.toml
index 92cfa77cc1d..4d43988ad18 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -136,8 +136,6 @@ known-first-party = ["poetry"]
 known-third-party = ["poetry.core"]
 required-imports = ["from __future__ import annotations"]
 
-[tool.ruff.lint.per-file-ignores]
-"src/poetry/console/*" = ["RUF012"]  # Can't annotate properly until new version of Cleo
 
 [tool.mypy]
 files = "src, tests"
diff --git a/src/poetry/console/commands/add.py b/src/poetry/console/commands/add.py
index a5fcbc7a2ca..6f4e4b06314 100644
--- a/src/poetry/console/commands/add.py
+++ b/src/poetry/console/commands/add.py
@@ -2,7 +2,9 @@
 
 import contextlib
 
+from typing import TYPE_CHECKING
 from typing import Any
+from typing import ClassVar
 
 from cleo.helpers import argument
 from cleo.helpers import option
@@ -14,12 +16,19 @@
 from poetry.console.commands.installer_command import InstallerCommand
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
+
+
 class AddCommand(InstallerCommand, InitCommand):
     name = "add"
     description = "Adds a new dependency to <comment>pyproject.toml</>."
 
-    arguments = [argument("name", "The packages to add.", multiple=True)]
-    options = [
+    arguments: ClassVar[list[Argument]] = [
+        argument("name", "The packages to add.", multiple=True)
+    ]
+    options: ClassVar[list[Option]] = [
         option(
             "group",
             "-G",
@@ -95,7 +104,10 @@ class AddCommand(InstallerCommand, InitCommand):
 {examples}
 """
 
-    loggers = ["poetry.repositories.pypi_repository", "poetry.inspection.info"]
+    loggers: ClassVar[list[str]] = [
+        "poetry.repositories.pypi_repository",
+        "poetry.inspection.info",
+    ]
 
     def handle(self) -> int:
         from poetry.core.constraints.version import parse_constraint
diff --git a/src/poetry/console/commands/build.py b/src/poetry/console/commands/build.py
index 41018ef4d67..3b2df69de4e 100644
--- a/src/poetry/console/commands/build.py
+++ b/src/poetry/console/commands/build.py
@@ -1,6 +1,8 @@
 from __future__ import annotations
 
 from pathlib import Path
+from typing import TYPE_CHECKING
+from typing import ClassVar
 
 from cleo.helpers import option
 
@@ -9,11 +11,15 @@
 from poetry.utils.helpers import remove_directory
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.option import Option
+
+
 class BuildCommand(EnvCommand):
     name = "build"
     description = "Builds a package, as a tarball and a wheel by default."
 
-    options = [
+    options: ClassVar[list[Option]] = [
         option("format", "f", "Limit the format to either sdist or wheel.", flag=False),
         option(
             "clean",
@@ -35,7 +41,7 @@ class BuildCommand(EnvCommand):
         ),
     ]
 
-    loggers = [
+    loggers: ClassVar[list[str]] = [
         "poetry.core.masonry.builders.builder",
         "poetry.core.masonry.builders.sdist",
         "poetry.core.masonry.builders.wheel",
diff --git a/src/poetry/console/commands/cache/clear.py b/src/poetry/console/commands/cache/clear.py
index 9896efd43d1..f3057f3fd64 100644
--- a/src/poetry/console/commands/cache/clear.py
+++ b/src/poetry/console/commands/cache/clear.py
@@ -2,6 +2,9 @@
 
 import os
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import argument
 from cleo.helpers import option
 from packaging.utils import canonicalize_name
@@ -11,12 +14,21 @@
 from poetry.utils.cache import FileCache
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
+
+
 class CacheClearCommand(Command):
     name = "cache clear"
     description = "Clears a Poetry cache by name."
 
-    arguments = [argument("cache", description="The name of the cache to clear.")]
-    options = [option("all", description="Clear all entries in the cache.")]
+    arguments: ClassVar[list[Argument]] = [
+        argument("cache", description="The name of the cache to clear.")
+    ]
+    options: ClassVar[list[Option]] = [
+        option("all", description="Clear all entries in the cache.")
+    ]
 
     def handle(self) -> int:
         cache = self.argument("cache")
diff --git a/src/poetry/console/commands/check.py b/src/poetry/console/commands/check.py
index 6f53685309d..ba533f992ee 100644
--- a/src/poetry/console/commands/check.py
+++ b/src/poetry/console/commands/check.py
@@ -2,6 +2,7 @@
 
 from typing import TYPE_CHECKING
 from typing import Any
+from typing import ClassVar
 
 from cleo.helpers import option
 
@@ -11,6 +12,8 @@
 if TYPE_CHECKING:
     from pathlib import Path
 
+    from cleo.io.inputs.option import Option
+
 
 class CheckCommand(Command):
     name = "check"
@@ -19,7 +22,7 @@ class CheckCommand(Command):
         " consistency with the poetry.lock file."
     )
 
-    options = [
+    options: ClassVar[list[Option]] = [
         option(
             "lock",
             None,
diff --git a/src/poetry/console/commands/command.py b/src/poetry/console/commands/command.py
index 2aba4e6be24..ff3b95b281b 100644
--- a/src/poetry/console/commands/command.py
+++ b/src/poetry/console/commands/command.py
@@ -2,6 +2,7 @@
 
 from typing import TYPE_CHECKING
 from typing import Any
+from typing import ClassVar
 
 from cleo.commands.command import Command as BaseCommand
 from cleo.exceptions import CleoValueError
@@ -13,7 +14,7 @@
 
 
 class Command(BaseCommand):
-    loggers: list[str] = []
+    loggers: ClassVar[list[str]] = []
 
     _poetry: Poetry | None = None
 
diff --git a/src/poetry/console/commands/config.py b/src/poetry/console/commands/config.py
index 3d0162e12c0..17296ec24ea 100644
--- a/src/poetry/console/commands/config.py
+++ b/src/poetry/console/commands/config.py
@@ -6,6 +6,7 @@
 from pathlib import Path
 from typing import TYPE_CHECKING
 from typing import Any
+from typing import ClassVar
 from typing import cast
 
 from cleo.helpers import argument
@@ -19,6 +20,9 @@
 
 
 if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
+
     from poetry.config.config_source import ConfigSource
 
 
@@ -26,12 +30,12 @@ class ConfigCommand(Command):
     name = "config"
     description = "Manages configuration settings."
 
-    arguments = [
+    arguments: ClassVar[list[Argument]] = [
         argument("key", "Setting key.", optional=True),
         argument("value", "Setting value.", optional=True, multiple=True),
     ]
 
-    options = [
+    options: ClassVar[list[Option]] = [
         option("list", None, "List configuration settings."),
         option("unset", None, "Unset configuration setting."),
         option("local", None, "Set/Get from the project's local configuration."),
@@ -48,7 +52,7 @@ class ConfigCommand(Command):
 
     <comment>poetry config --unset repo.foo</comment>"""
 
-    LIST_PROHIBITED_SETTINGS = {"http-basic", "pypi-token"}
+    LIST_PROHIBITED_SETTINGS: ClassVar[set[str]] = {"http-basic", "pypi-token"}
 
     @property
     def unique_config_values(self) -> dict[str, tuple[Any, Any]]:
diff --git a/src/poetry/console/commands/debug/resolve.py b/src/poetry/console/commands/debug/resolve.py
index ec168f6adf8..8bf36668697 100644
--- a/src/poetry/console/commands/debug/resolve.py
+++ b/src/poetry/console/commands/debug/resolve.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 from typing import TYPE_CHECKING
+from typing import ClassVar
 
 from cleo.helpers import argument
 from cleo.helpers import option
@@ -11,6 +12,8 @@
 
 
 if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
     from cleo.ui.table import Rows
 
 
@@ -18,10 +21,10 @@ class DebugResolveCommand(InitCommand):
     name = "debug resolve"
     description = "Debugs dependency resolution."
 
-    arguments = [
+    arguments: ClassVar[list[Argument]] = [
         argument("package", "The packages to resolve.", optional=True, multiple=True)
     ]
-    options = [
+    options: ClassVar[list[Option]] = [
         option(
             "extras",
             "E",
@@ -34,7 +37,10 @@ class DebugResolveCommand(InitCommand):
         option("install", None, "Show what would be installed for the current system."),
     ]
 
-    loggers = ["poetry.repositories.pypi_repository", "poetry.inspection.info"]
+    loggers: ClassVar[list[str]] = [
+        "poetry.repositories.pypi_repository",
+        "poetry.inspection.info",
+    ]
 
     def handle(self) -> int:
         from cleo.io.null_io import NullIO
diff --git a/src/poetry/console/commands/env/info.py b/src/poetry/console/commands/env/info.py
index cb8152a8331..0e4a71763fe 100644
--- a/src/poetry/console/commands/env/info.py
+++ b/src/poetry/console/commands/env/info.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 from typing import TYPE_CHECKING
+from typing import ClassVar
 
 from cleo.helpers import option
 
@@ -8,6 +9,8 @@
 
 
 if TYPE_CHECKING:
+    from cleo.io.inputs.option import Option
+
     from poetry.utils.env import Env
 
 
@@ -15,7 +18,7 @@ class EnvInfoCommand(Command):
     name = "env info"
     description = "Displays information about the current environment."
 
-    options = [
+    options: ClassVar[list[Option]] = [
         option("path", "p", "Only display the environment's path."),
         option(
             "executable", "e", "Only display the environment's python executable path."
diff --git a/src/poetry/console/commands/env/list.py b/src/poetry/console/commands/env/list.py
index e8c89e8bea7..27ba60c5d09 100644
--- a/src/poetry/console/commands/env/list.py
+++ b/src/poetry/console/commands/env/list.py
@@ -1,15 +1,24 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import option
 
 from poetry.console.commands.command import Command
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.option import Option
+
+
 class EnvListCommand(Command):
     name = "env list"
     description = "Lists all virtualenvs associated with the current project."
 
-    options = [option("full-path", None, "Output the full paths of the virtualenvs.")]
+    options: ClassVar[list[Option]] = [
+        option("full-path", None, "Output the full paths of the virtualenvs.")
+    ]
 
     def handle(self) -> int:
         from poetry.utils.env import EnvManager
diff --git a/src/poetry/console/commands/env/remove.py b/src/poetry/console/commands/env/remove.py
index 4325f045b39..4371ec4f84b 100644
--- a/src/poetry/console/commands/env/remove.py
+++ b/src/poetry/console/commands/env/remove.py
@@ -1,16 +1,24 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import argument
 from cleo.helpers import option
 
 from poetry.console.commands.command import Command
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
+
+
 class EnvRemoveCommand(Command):
     name = "env remove"
     description = "Remove virtual environments associated with the project."
 
-    arguments = [
+    arguments: ClassVar[list[Argument]] = [
         argument(
             "python",
             "The python executables associated with, or names of the virtual"
@@ -19,7 +27,7 @@ class EnvRemoveCommand(Command):
             multiple=True,
         )
     ]
-    options = [
+    options: ClassVar[list[Option]] = [
         option(
             "all",
             description=(
diff --git a/src/poetry/console/commands/env/use.py b/src/poetry/console/commands/env/use.py
index c48312d9e4c..d07a5f63cba 100644
--- a/src/poetry/console/commands/env/use.py
+++ b/src/poetry/console/commands/env/use.py
@@ -1,15 +1,24 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import argument
 
 from poetry.console.commands.command import Command
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+
+
 class EnvUseCommand(Command):
     name = "env use"
     description = "Activates or creates a new virtualenv for the current project."
 
-    arguments = [argument("python", "The python executable to use.")]
+    arguments: ClassVar[list[Argument]] = [
+        argument("python", "The python executable to use.")
+    ]
 
     def handle(self) -> int:
         from poetry.utils.env import EnvManager
diff --git a/src/poetry/console/commands/init.py b/src/poetry/console/commands/init.py
index fe708c98ab4..670fa4cb09e 100644
--- a/src/poetry/console/commands/init.py
+++ b/src/poetry/console/commands/init.py
@@ -3,6 +3,7 @@
 from pathlib import Path
 from typing import TYPE_CHECKING
 from typing import Any
+from typing import ClassVar
 from typing import Dict
 from typing import Mapping
 from typing import Union
@@ -17,6 +18,7 @@
 
 
 if TYPE_CHECKING:
+    from cleo.io.inputs.option import Option
     from packaging.utils import NormalizedName
     from poetry.core.packages.package import Package
     from tomlkit.items import InlineTable
@@ -32,7 +34,7 @@ class InitCommand(Command):
         "Creates a basic <comment>pyproject.toml</> file in the current directory."
     )
 
-    options = [
+    options: ClassVar[list[Option]] = [
         option("name", None, "Name of the package.", flag=False),
         option("description", None, "Description of the package.", flag=False),
         option("author", None, "Author name of the package.", flag=False),
diff --git a/src/poetry/console/commands/install.py b/src/poetry/console/commands/install.py
index 55037d41d77..7234a1cebcb 100644
--- a/src/poetry/console/commands/install.py
+++ b/src/poetry/console/commands/install.py
@@ -1,15 +1,22 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import option
 
 from poetry.console.commands.installer_command import InstallerCommand
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.option import Option
+
+
 class InstallCommand(InstallerCommand):
     name = "install"
     description = "Installs the project dependencies."
 
-    options = [
+    options: ClassVar[list[Option]] = [
         *InstallerCommand._group_dependency_options(),
         option(
             "no-dev",
@@ -82,7 +89,10 @@ class InstallCommand(InstallerCommand):
 you can set the "package-mode" to false in your pyproject.toml file.
 """
 
-    _loggers = ["poetry.repositories.pypi_repository", "poetry.inspection.info"]
+    _loggers: ClassVar[list[str]] = [
+        "poetry.repositories.pypi_repository",
+        "poetry.inspection.info",
+    ]
 
     @property
     def activated_groups(self) -> set[str]:
diff --git a/src/poetry/console/commands/lock.py b/src/poetry/console/commands/lock.py
index fd8eda77936..c64f1dfd2ad 100644
--- a/src/poetry/console/commands/lock.py
+++ b/src/poetry/console/commands/lock.py
@@ -1,15 +1,22 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import option
 
 from poetry.console.commands.installer_command import InstallerCommand
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.option import Option
+
+
 class LockCommand(InstallerCommand):
     name = "lock"
     description = "Locks the project dependencies."
 
-    options = [
+    options: ClassVar[list[Option]] = [
         option(
             "no-update", None, "Do not update locked versions, only refresh lock file."
         ),
@@ -31,7 +38,7 @@ class LockCommand(InstallerCommand):
 <info>poetry lock</info>
 """
 
-    loggers = ["poetry.repositories.pypi_repository"]
+    loggers: ClassVar[list[str]] = ["poetry.repositories.pypi_repository"]
 
     def handle(self) -> int:
         if self.option("check"):
diff --git a/src/poetry/console/commands/new.py b/src/poetry/console/commands/new.py
index 5f896cf80e8..fd32fa6137f 100644
--- a/src/poetry/console/commands/new.py
+++ b/src/poetry/console/commands/new.py
@@ -1,6 +1,8 @@
 from __future__ import annotations
 
 from contextlib import suppress
+from typing import TYPE_CHECKING
+from typing import ClassVar
 
 from cleo.helpers import argument
 from cleo.helpers import option
@@ -8,12 +10,19 @@
 from poetry.console.commands.command import Command
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
+
+
 class NewCommand(Command):
     name = "new"
     description = "Creates a new Python project at <path>."
 
-    arguments = [argument("path", "The path to create the project at.")]
-    options = [
+    arguments: ClassVar[list[Argument]] = [
+        argument("path", "The path to create the project at.")
+    ]
+    options: ClassVar[list[Option]] = [
         option("name", None, "Set the resulting package name.", flag=False),
         option("src", None, "Use the src layout for the project."),
         option(
diff --git a/src/poetry/console/commands/publish.py b/src/poetry/console/commands/publish.py
index 2671c7a11d1..a9395620cb9 100644
--- a/src/poetry/console/commands/publish.py
+++ b/src/poetry/console/commands/publish.py
@@ -1,17 +1,23 @@
 from __future__ import annotations
 
 from pathlib import Path
+from typing import TYPE_CHECKING
+from typing import ClassVar
 
 from cleo.helpers import option
 
 from poetry.console.commands.command import Command
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.option import Option
+
+
 class PublishCommand(Command):
     name = "publish"
     description = "Publishes a package to a remote repository."
 
-    options = [
+    options: ClassVar[list[Option]] = [
         option(
             "repository", "r", "The repository to publish the package to.", flag=False
         ),
@@ -51,7 +57,7 @@ class PublishCommand(Command):
 the config command.
 """
 
-    loggers = ["poetry.publishing.publisher"]
+    loggers: ClassVar[list[str]] = ["poetry.publishing.publisher"]
 
     def handle(self) -> int:
         from poetry.publishing.publisher import Publisher
diff --git a/src/poetry/console/commands/remove.py b/src/poetry/console/commands/remove.py
index d4315e80bf8..620bc21e510 100644
--- a/src/poetry/console/commands/remove.py
+++ b/src/poetry/console/commands/remove.py
@@ -1,6 +1,8 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
 from typing import Any
+from typing import ClassVar
 
 from cleo.helpers import argument
 from cleo.helpers import option
@@ -11,12 +13,19 @@
 from poetry.console.commands.installer_command import InstallerCommand
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
+
+
 class RemoveCommand(InstallerCommand):
     name = "remove"
     description = "Removes a package from the project dependencies."
 
-    arguments = [argument("packages", "The packages to remove.", multiple=True)]
-    options = [
+    arguments: ClassVar[list[Argument]] = [
+        argument("packages", "The packages to remove.", multiple=True)
+    ]
+    options: ClassVar[list[Option]] = [
         option("group", "G", "The group to remove the dependency from.", flag=False),
         option(
             "dev",
@@ -39,7 +48,10 @@ class RemoveCommand(InstallerCommand):
 
 <info>poetry remove</info>"""
 
-    loggers = ["poetry.repositories.pypi_repository", "poetry.inspection.info"]
+    loggers: ClassVar[list[str]] = [
+        "poetry.repositories.pypi_repository",
+        "poetry.inspection.info",
+    ]
 
     def handle(self) -> int:
         packages = self.argument("packages")
diff --git a/src/poetry/console/commands/run.py b/src/poetry/console/commands/run.py
index 98736280bf2..b2bfc67cd95 100644
--- a/src/poetry/console/commands/run.py
+++ b/src/poetry/console/commands/run.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 from typing import TYPE_CHECKING
+from typing import ClassVar
 
 from cleo.helpers import argument
 
@@ -9,6 +10,7 @@
 
 
 if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
     from poetry.core.masonry.utils.module import Module
 
 
@@ -16,7 +18,7 @@ class RunCommand(EnvCommand):
     name = "run"
     description = "Runs a command in the appropriate environment."
 
-    arguments = [
+    arguments: ClassVar[list[Argument]] = [
         argument("args", "The command and arguments/options to run.", multiple=True)
     ]
 
diff --git a/src/poetry/console/commands/search.py b/src/poetry/console/commands/search.py
index 429f686898a..5705b06b493 100644
--- a/src/poetry/console/commands/search.py
+++ b/src/poetry/console/commands/search.py
@@ -1,15 +1,24 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import argument
 
 from poetry.console.commands.command import Command
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+
+
 class SearchCommand(Command):
     name = "search"
     description = "Searches for packages on remote repositories."
 
-    arguments = [argument("tokens", "The tokens to search for.", multiple=True)]
+    arguments: ClassVar[list[Argument]] = [
+        argument("tokens", "The tokens to search for.", multiple=True)
+    ]
 
     def handle(self) -> int:
         from poetry.repositories.pypi_repository import PyPiRepository
diff --git a/src/poetry/console/commands/self/add.py b/src/poetry/console/commands/self/add.py
index b8c5657eb85..946e13d474c 100644
--- a/src/poetry/console/commands/self/add.py
+++ b/src/poetry/console/commands/self/add.py
@@ -1,5 +1,8 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from poetry.core.constraints.version import Version
 
 from poetry.__version__ import __version__
@@ -7,10 +10,14 @@
 from poetry.console.commands.self.self_command import SelfCommand
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.option import Option
+
+
 class SelfAddCommand(SelfCommand, AddCommand):
     name = "self add"
     description = "Add additional packages to Poetry's runtime environment."
-    options = [
+    options: ClassVar[list[Option]] = [
         o
         for o in AddCommand.options
         if o.name in {"editable", "extras", "source", "dry-run", "allow-prereleases"}
diff --git a/src/poetry/console/commands/self/install.py b/src/poetry/console/commands/self/install.py
index ec70f734644..c0870b2280e 100644
--- a/src/poetry/console/commands/self/install.py
+++ b/src/poetry/console/commands/self/install.py
@@ -1,17 +1,26 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from poetry.core.packages.dependency_group import MAIN_GROUP
 
 from poetry.console.commands.install import InstallCommand
 from poetry.console.commands.self.self_command import SelfCommand
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.option import Option
+
+
 class SelfInstallCommand(SelfCommand, InstallCommand):
     name = "self install"
     description = (
         "Install locked packages (incl. addons) required by this Poetry installation."
     )
-    options = [o for o in InstallCommand.options if o.name in {"sync", "dry-run"}]
+    options: ClassVar[list[Option]] = [
+        o for o in InstallCommand.options if o.name in {"sync", "dry-run"}
+    ]
     help = f"""\
 The <c1>self install</c1> command ensures all additional packages specified are \
 installed in the current runtime environment.
diff --git a/src/poetry/console/commands/self/remove.py b/src/poetry/console/commands/self/remove.py
index 59f1d2fa614..fc890b18c2b 100644
--- a/src/poetry/console/commands/self/remove.py
+++ b/src/poetry/console/commands/self/remove.py
@@ -1,13 +1,22 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from poetry.console.commands.remove import RemoveCommand
 from poetry.console.commands.self.self_command import SelfCommand
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.option import Option
+
+
 class SelfRemoveCommand(SelfCommand, RemoveCommand):
     name = "self remove"
     description = "Remove additional packages from Poetry's runtime environment."
-    options = [o for o in RemoveCommand.options if o.name in {"dry-run"}]
+    options: ClassVar[list[Option]] = [
+        o for o in RemoveCommand.options if o.name in {"dry-run"}
+    ]
     help = f"""\
 The <c1>self remove</c1> command removes additional package's to Poetry's runtime \
 environment.
diff --git a/src/poetry/console/commands/self/show/__init__.py b/src/poetry/console/commands/self/show/__init__.py
index 7212d69c7e1..8f4060ad2a3 100644
--- a/src/poetry/console/commands/self/show/__init__.py
+++ b/src/poetry/console/commands/self/show/__init__.py
@@ -1,14 +1,21 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import option
 
 from poetry.console.commands.self.self_command import SelfCommand
 from poetry.console.commands.show import ShowCommand
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.option import Option
+
+
 class SelfShowCommand(SelfCommand, ShowCommand):
     name = "self show"
-    options = [
+    options: ClassVar[list[Option]] = [
         option("addons", None, "List only add-on packages installed."),
         *[o for o in ShowCommand.options if o.name in {"tree", "latest", "outdated"}],
     ]
diff --git a/src/poetry/console/commands/self/update.py b/src/poetry/console/commands/self/update.py
index f42a3d477d8..24e1f7326e9 100644
--- a/src/poetry/console/commands/self/update.py
+++ b/src/poetry/console/commands/self/update.py
@@ -1,5 +1,8 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import argument
 from cleo.helpers import option
 from cleo.io.inputs.string_input import StringInput
@@ -9,16 +12,21 @@
 from poetry.console.commands.self.self_command import SelfCommand
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
+
+
 class SelfUpdateCommand(SelfCommand):
     name = "self update"
     description = "Updates Poetry to the latest version."
 
-    arguments = [
+    arguments: ClassVar[list[Argument]] = [
         argument(
             "version", "The version to update to.", optional=True, default="latest"
         )
     ]
-    options = [
+    options: ClassVar[list[Option]] = [
         option("preview", None, "Allow the installation of pre-release versions."),
         option(
             "dry-run",
diff --git a/src/poetry/console/commands/show.py b/src/poetry/console/commands/show.py
index 1208ca4c3c2..6bcd7eca7fb 100644
--- a/src/poetry/console/commands/show.py
+++ b/src/poetry/console/commands/show.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 from typing import TYPE_CHECKING
+from typing import ClassVar
 
 from cleo.helpers import argument
 from cleo.helpers import option
@@ -11,6 +12,8 @@
 
 
 if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
     from cleo.io.io import IO
     from cleo.ui.table import Rows
     from packaging.utils import NormalizedName
@@ -36,8 +39,10 @@ class ShowCommand(GroupCommand, EnvCommand):
     name = "show"
     description = "Shows information about packages."
 
-    arguments = [argument("package", "The package to inspect", optional=True)]
-    options = [
+    arguments: ClassVar[list[Argument]] = [
+        argument("package", "The package to inspect", optional=True)
+    ]
+    options: ClassVar[list[Option]] = [
         *GroupCommand._group_dependency_options(),
         option(
             "no-dev",
@@ -69,7 +74,7 @@ class ShowCommand(GroupCommand, EnvCommand):
     help = """The show command displays detailed information about a package, or
 lists all packages available."""
 
-    colors = ["cyan", "yellow", "green", "magenta", "blue"]
+    colors: ClassVar[list[str]] = ["cyan", "yellow", "green", "magenta", "blue"]
 
     def handle(self) -> int:
         package = self.argument("package")
diff --git a/src/poetry/console/commands/source/add.py b/src/poetry/console/commands/source/add.py
index 6d1ab587ee6..9ce8ecc651d 100644
--- a/src/poetry/console/commands/source/add.py
+++ b/src/poetry/console/commands/source/add.py
@@ -1,5 +1,8 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import argument
 from cleo.helpers import option
 from cleo.io.null_io import NullIO
@@ -10,11 +13,16 @@
 from poetry.repositories.repository_pool import Priority
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
+
+
 class SourceAddCommand(Command):
     name = "source add"
     description = "Add source configuration for project."
 
-    arguments = [
+    arguments: ClassVar[list[Argument]] = [
         argument(
             "name",
             "Source repository name.",
@@ -27,7 +35,7 @@ class SourceAddCommand(Command):
         ),
     ]
 
-    options = [
+    options: ClassVar[list[Option]] = [
         option(
             "default",
             "d",
diff --git a/src/poetry/console/commands/source/remove.py b/src/poetry/console/commands/source/remove.py
index cb667aa5ea1..776cc658737 100644
--- a/src/poetry/console/commands/source/remove.py
+++ b/src/poetry/console/commands/source/remove.py
@@ -1,16 +1,23 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import argument
 from tomlkit.items import AoT
 
 from poetry.console.commands.command import Command
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+
+
 class SourceRemoveCommand(Command):
     name = "source remove"
     description = "Remove source configured for the project."
 
-    arguments = [
+    arguments: ClassVar[list[Argument]] = [
         argument(
             "name",
             "Source repository name.",
diff --git a/src/poetry/console/commands/source/show.py b/src/poetry/console/commands/source/show.py
index 26b85544911..61b3375ba53 100644
--- a/src/poetry/console/commands/source/show.py
+++ b/src/poetry/console/commands/source/show.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 from typing import TYPE_CHECKING
+from typing import ClassVar
 
 from cleo.helpers import argument
 
@@ -8,6 +9,7 @@
 
 
 if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
     from cleo.ui.table import Rows
 
 
@@ -15,7 +17,7 @@ class SourceShowCommand(Command):
     name = "source show"
     description = "Show information about sources configured for the project."
 
-    arguments = [
+    arguments: ClassVar[list[Argument]] = [
         argument(
             "source",
             "Source(s) to show information for. Defaults to showing all sources.",
diff --git a/src/poetry/console/commands/update.py b/src/poetry/console/commands/update.py
index 59c17caaa9b..dc300231d27 100644
--- a/src/poetry/console/commands/update.py
+++ b/src/poetry/console/commands/update.py
@@ -1,21 +1,29 @@
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+from typing import ClassVar
+
 from cleo.helpers import argument
 from cleo.helpers import option
 
 from poetry.console.commands.installer_command import InstallerCommand
 
 
+if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
+
+
 class UpdateCommand(InstallerCommand):
     name = "update"
     description = (
         "Update the dependencies as according to the <comment>pyproject.toml</> file."
     )
 
-    arguments = [
+    arguments: ClassVar[list[Argument]] = [
         argument("packages", "The packages to update", optional=True, multiple=True)
     ]
-    options = [
+    options: ClassVar[list[Option]] = [
         *InstallerCommand._group_dependency_options(),
         option(
             "no-dev",
@@ -38,7 +46,7 @@ class UpdateCommand(InstallerCommand):
         option("lock", None, "Do not perform operations (only update the lockfile)."),
     ]
 
-    loggers = ["poetry.repositories.pypi_repository"]
+    loggers: ClassVar[list[str]] = ["poetry.repositories.pypi_repository"]
 
     def handle(self) -> int:
         packages = self.argument("packages")
diff --git a/src/poetry/console/commands/version.py b/src/poetry/console/commands/version.py
index 7e8d118759c..a1dbf7102ee 100644
--- a/src/poetry/console/commands/version.py
+++ b/src/poetry/console/commands/version.py
@@ -2,6 +2,7 @@
 
 from typing import TYPE_CHECKING
 from typing import Any
+from typing import ClassVar
 
 from cleo.helpers import argument
 from cleo.helpers import option
@@ -12,6 +13,8 @@
 
 
 if TYPE_CHECKING:
+    from cleo.io.inputs.argument import Argument
+    from cleo.io.inputs.option import Option
     from poetry.core.constraints.version import Version
 
 
@@ -22,14 +25,14 @@ class VersionCommand(Command):
         "bump rule is provided."
     )
 
-    arguments = [
+    arguments: ClassVar[list[Argument]] = [
         argument(
             "version",
             "The version number or the rule to update the version.",
             optional=True,
         ),
     ]
-    options = [
+    options: ClassVar[list[Option]] = [
         option("short", "s", "Output the version number only"),
         option(
             "dry-run",
@@ -48,7 +51,7 @@ class VersionCommand(Command):
 patch, minor, major, prepatch, preminor, premajor, prerelease.
 """
 
-    RESERVED = {
+    RESERVED: ClassVar[set[str]] = {
         "major",
         "minor",
         "patch",
diff --git a/src/poetry/console/logging/io_formatter.py b/src/poetry/console/logging/io_formatter.py
index 013150130a9..37432a9de76 100644
--- a/src/poetry/console/logging/io_formatter.py
+++ b/src/poetry/console/logging/io_formatter.py
@@ -6,6 +6,7 @@
 
 from pathlib import Path
 from typing import TYPE_CHECKING
+from typing import ClassVar
 
 from poetry.console.logging.filters import POETRY_FILTER
 from poetry.console.logging.formatters import FORMATTERS
@@ -16,7 +17,7 @@
 
 
 class IOFormatter(logging.Formatter):
-    _colors = {
+    _colors: ClassVar[dict[str, str]] = {
         "error": "fg=red",
         "warning": "fg=yellow",
         "debug": "debug",