diff --git a/.strict-typing b/.strict-typing
index b4abed22bf8..a976deed8c1 100644
--- a/.strict-typing
+++ b/.strict-typing
@@ -116,6 +116,7 @@ homeassistant.components.clickatell.*
 homeassistant.components.clicksend.*
 homeassistant.components.climate.*
 homeassistant.components.cloud.*
+homeassistant.components.command_line.*
 homeassistant.components.configurator.*
 homeassistant.components.cover.*
 homeassistant.components.cpuspeed.*
diff --git a/homeassistant/components/command_line/__init__.py b/homeassistant/components/command_line/__init__.py
index e1a051cea33..ba4292b5a65 100644
--- a/homeassistant/components/command_line/__init__.py
+++ b/homeassistant/components/command_line/__init__.py
@@ -200,7 +200,7 @@ async def async_load_platforms(
 
     load_coroutines: list[Coroutine[Any, Any, None]] = []
     platforms: list[Platform] = []
-    reload_configs: list[tuple] = []
+    reload_configs: list[tuple[Platform, dict[str, Any]]] = []
     for platform_config in command_line_config:
         for platform, _config in platform_config.items():
             if (mapped_platform := PLATFORM_MAPPING[platform]) not in platforms:
diff --git a/homeassistant/components/command_line/binary_sensor.py b/homeassistant/components/command_line/binary_sensor.py
index f559812207f..31259ddf909 100644
--- a/homeassistant/components/command_line/binary_sensor.py
+++ b/homeassistant/components/command_line/binary_sensor.py
@@ -2,7 +2,7 @@
 from __future__ import annotations
 
 import asyncio
-from datetime import timedelta
+from datetime import datetime, timedelta
 from typing import cast
 
 from homeassistant.components.binary_sensor import (
@@ -115,7 +115,7 @@ class CommandBinarySensor(ManualTriggerEntity, BinarySensorEntity):
     async def async_added_to_hass(self) -> None:
         """Call when entity about to be added to hass."""
         await super().async_added_to_hass()
-        await self._update_entity_state(None)
+        await self._update_entity_state()
         self.async_on_remove(
             async_track_time_interval(
                 self.hass,
@@ -126,7 +126,7 @@ class CommandBinarySensor(ManualTriggerEntity, BinarySensorEntity):
             ),
         )
 
-    async def _update_entity_state(self, now) -> None:
+    async def _update_entity_state(self, now: datetime | None = None) -> None:
         """Update the state of the entity."""
         if self._process_updates is None:
             self._process_updates = asyncio.Lock()
diff --git a/homeassistant/components/command_line/cover.py b/homeassistant/components/command_line/cover.py
index 6b413712ed7..93c007297ea 100644
--- a/homeassistant/components/command_line/cover.py
+++ b/homeassistant/components/command_line/cover.py
@@ -2,7 +2,7 @@
 from __future__ import annotations
 
 import asyncio
-from datetime import timedelta
+from datetime import datetime, timedelta
 from typing import TYPE_CHECKING, Any, cast
 
 from homeassistant.components.cover import CoverEntity
@@ -147,7 +147,7 @@ class CommandCover(ManualTriggerEntity, CoverEntity):
         if TYPE_CHECKING:
             return None
 
-    async def _update_entity_state(self, now) -> None:
+    async def _update_entity_state(self, now: datetime | None = None) -> None:
         """Update the state of the entity."""
         if self._process_updates is None:
             self._process_updates = asyncio.Lock()
@@ -186,14 +186,14 @@ class CommandCover(ManualTriggerEntity, CoverEntity):
     async def async_open_cover(self, **kwargs: Any) -> None:
         """Open the cover."""
         await self.hass.async_add_executor_job(self._move_cover, self._command_open)
-        await self._update_entity_state(None)
+        await self._update_entity_state()
 
     async def async_close_cover(self, **kwargs: Any) -> None:
         """Close the cover."""
         await self.hass.async_add_executor_job(self._move_cover, self._command_close)
-        await self._update_entity_state(None)
+        await self._update_entity_state()
 
     async def async_stop_cover(self, **kwargs: Any) -> None:
         """Stop the cover."""
         await self.hass.async_add_executor_job(self._move_cover, self._command_stop)
-        await self._update_entity_state(None)
+        await self._update_entity_state()
diff --git a/homeassistant/components/command_line/sensor.py b/homeassistant/components/command_line/sensor.py
index 99390e77357..c1d60b9d2fd 100644
--- a/homeassistant/components/command_line/sensor.py
+++ b/homeassistant/components/command_line/sensor.py
@@ -3,7 +3,7 @@ from __future__ import annotations
 
 import asyncio
 from collections.abc import Mapping
-from datetime import timedelta
+from datetime import datetime, timedelta
 import json
 from typing import Any, cast
 
@@ -108,7 +108,7 @@ class CommandSensor(ManualTriggerSensorEntity):
         """Initialize the sensor."""
         super().__init__(self.hass, config)
         self.data = data
-        self._attr_extra_state_attributes = {}
+        self._attr_extra_state_attributes: dict[str, Any] = {}
         self._json_attributes = json_attributes
         self._attr_native_value = None
         self._value_template = value_template
@@ -118,12 +118,12 @@ class CommandSensor(ManualTriggerSensorEntity):
     @property
     def extra_state_attributes(self) -> dict[str, Any]:
         """Return extra state attributes."""
-        return cast(dict, self._attr_extra_state_attributes)
+        return self._attr_extra_state_attributes
 
     async def async_added_to_hass(self) -> None:
         """Call when entity about to be added to hass."""
         await super().async_added_to_hass()
-        await self._update_entity_state(None)
+        await self._update_entity_state()
         self.async_on_remove(
             async_track_time_interval(
                 self.hass,
@@ -134,7 +134,7 @@ class CommandSensor(ManualTriggerSensorEntity):
             ),
         )
 
-    async def _update_entity_state(self, now) -> None:
+    async def _update_entity_state(self, now: datetime | None = None) -> None:
         """Update the state of the entity."""
         if self._process_updates is None:
             self._process_updates = asyncio.Lock()
diff --git a/homeassistant/components/command_line/switch.py b/homeassistant/components/command_line/switch.py
index 8d30de310ef..0af6163312c 100644
--- a/homeassistant/components/command_line/switch.py
+++ b/homeassistant/components/command_line/switch.py
@@ -2,7 +2,7 @@
 from __future__ import annotations
 
 import asyncio
-from datetime import timedelta
+from datetime import datetime, timedelta
 from typing import TYPE_CHECKING, Any, cast
 
 from homeassistant.components.switch import ENTITY_ID_FORMAT, SwitchEntity
@@ -155,7 +155,7 @@ class CommandSwitch(ManualTriggerEntity, SwitchEntity):
         if TYPE_CHECKING:
             return None
 
-    async def _update_entity_state(self, now) -> None:
+    async def _update_entity_state(self, now: datetime | None = None) -> None:
         """Update the state of the entity."""
         if self._process_updates is None:
             self._process_updates = asyncio.Lock()
@@ -197,11 +197,11 @@ class CommandSwitch(ManualTriggerEntity, SwitchEntity):
         if await self._switch(self._command_on) and not self._command_state:
             self._attr_is_on = True
             self.async_schedule_update_ha_state()
-        await self._update_entity_state(None)
+        await self._update_entity_state()
 
     async def async_turn_off(self, **kwargs: Any) -> None:
         """Turn the device off."""
         if await self._switch(self._command_off) and not self._command_state:
             self._attr_is_on = False
             self.async_schedule_update_ha_state()
-        await self._update_entity_state(None)
+        await self._update_entity_state()
diff --git a/mypy.ini b/mypy.ini
index 9fd8f6a1305..7a2e16c37ed 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -920,6 +920,16 @@ disallow_untyped_defs = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.command_line.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.configurator.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true