OmniFocus MCP Server

Update multiple tasks with the same field values (batch operation - NEW API).

This is the batch version of update_task(). It applies uniform changes to multiple tasks simultaneously.

Key differences from update_task():

• Accepts Union[str, list[str]] for task_ids (single or multiple)

• Does NOT accept task_name or note (require unique values per task)

• Returns count-based summary instead of single success/failure

• Continues processing when individual tasks fail

Args: task_ids: Single task ID (str) or list of task IDs to update flagged: Flag/unflag all tasks (optional) status: Set status for all tasks - "active" or "dropped" (optional) completed: Mark all tasks complete/incomplete (optional) project_id: Move all tasks to this project (optional). Mutually exclusive with parent_task_id — a subtask inherits its parent's project. parent_task_id: Make all tasks subtasks of this parent (optional). Mutually exclusive with project_id — a subtask inherits its parent's project. tags: Full replacement - set exact tag list for all tasks (optional, conflicts with add_tags) add_tags: Add these tags to all tasks (optional, conflicts with tags) remove_tags: Remove these tags from all tasks (optional) due_date: Set due date for all tasks in ISO 8601 format, or empty string to clear. Omitting means no change. (optional) defer_date: Set defer date for all tasks in ISO 8601 format, or empty string to clear. Omitting means no change. (optional) estimated_minutes: Set estimated time in minutes for all tasks (optional)

Returns: Summary message with counts of successful/failed updates

Examples: update_tasks(["task-001", "task-002"], flagged=True) # Flag multiple tasks update_tasks("task-123", completed=True) # Complete single task (Union type) update_tasks(["task-001", "task-002", "task-003"], status="dropped") # Drop multiple