Add TaskTrackerStatusType type alias for task tracker status (#1263)

Co-authored-by: openhands <openhands@all-hands.dev>

Author: xingyaoww

openhands-tools/openhands/tools/task_tracker/__init__.py

@@ -2,6 +2,7 @@
     TaskTrackerAction,
     TaskTrackerExecutor,
     TaskTrackerObservation,
+    TaskTrackerStatusType,
     TaskTrackerTool,
 )
 
@@ -10,5 +11,6 @@
     "TaskTrackerAction",
     "TaskTrackerExecutor",
     "TaskTrackerObservation",
+    "TaskTrackerStatusType",
     "TaskTrackerTool",
 ]

openhands-tools/openhands/tools/task_tracker/definition.py

@@ -25,11 +25,14 @@
 
 logger = get_logger(__name__)
 
+# Type alias for task tracker status
+TaskTrackerStatusType = Literal["todo", "in_progress", "done"]
+
 
 class TaskItem(BaseModel):
     title: str = Field(..., description="A brief title for the task.")
     notes: str = Field("", description="Additional details or notes about the task.")
-    status: Literal["todo", "in_progress", "done"] = Field(
+    status: TaskTrackerStatusType = Field(
         "todo",
         description="The current status of the task. "
         "One of 'todo', 'in_progress', or 'done'.",