diff --git a/client/ayon_core/host/host.py b/client/ayon_core/host/host.py
index 9b7d43be94..28cb6b0a09 100644
--- a/client/ayon_core/host/host.py
+++ b/client/ayon_core/host/host.py
@@ -104,41 +104,41 @@ class HostBase(AbstractHost):
 
         It is called automatically when 'ayon_core.pipeline.install_host' is
         triggered.
-        """
 
+        """
         pass
 
     @property
-    def log(self):
+    def log(self) -> logging.Logger:
         if self._log is None:
             self._log = logging.getLogger(self.__class__.__name__)
         return self._log
 
-    def get_current_project_name(self):
+    def get_current_project_name(self) -> str:
         """
         Returns:
-            Union[str, None]: Current project name.
-        """
+            str: Current project name.
 
-        return os.environ.get("AYON_PROJECT_NAME")
+        """
+        return os.environ["AYON_PROJECT_NAME"]
 
     def get_current_folder_path(self) -> Optional[str]:
         """
         Returns:
-            Union[str, None]: Current asset name.
-        """
+            Optional[str]: Current asset name.
 
+        """
         return os.environ.get("AYON_FOLDER_PATH")
 
     def get_current_task_name(self) -> Optional[str]:
         """
         Returns:
-            Union[str, None]: Current task name.
-        """
+            Optional[str]: Current task name.
 
+        """
         return os.environ.get("AYON_TASK_NAME")
 
-    def get_current_context(self) -> "HostContextData":
+    def get_current_context(self) -> HostContextData:
         """Get current context information.
 
         This method should be used to get current context of host. Usage of
@@ -147,10 +147,10 @@ class HostBase(AbstractHost):
         can't be caught properly.
 
         Returns:
-            Dict[str, Union[str, None]]: Context with 3 keys 'project_name',
-                'folder_path' and 'task_name'. All of them can be 'None'.
-        """
+            HostContextData: Current context with 'project_name',
+                'folder_path' and 'task_name'.
 
+        """
         return {
             "project_name": self.get_current_project_name(),
             "folder_path": self.get_current_folder_path(),
@@ -165,7 +165,7 @@ class HostBase(AbstractHost):
         reason: ContextChangeReason = ContextChangeReason.undefined,
         project_entity: Optional[dict[str, Any]] = None,
         anatomy: Optional[Anatomy] = None,
-    ) -> "HostContextData":
+    ) -> HostContextData:
         """Set current context information.
 
         This method should be used to set current context of host. Usage of
@@ -278,7 +278,7 @@ class HostBase(AbstractHost):
         project_name: str,
         folder_path: Optional[str],
         task_name: Optional[str],
-    ) -> "HostContextData":
+    ) -> HostContextData:
         """Emit context change event.
 
         Args:
@@ -290,7 +290,7 @@ class HostBase(AbstractHost):
             HostContextData: Data send to context change event.
 
         """
-        data = {
+        data: HostContextData = {
             "project_name": project_name,
             "folder_path": folder_path,
             "task_name": task_name,