diff --git a/server/tm/interface.go b/server/tm/interface.go
index 93b0f29..e3fa926 100644
--- a/server/tm/interface.go
+++ b/server/tm/interface.go
@@ -8,8 +8,8 @@
 type TaskManager interface {
 	// Task operations
 	CreateTask(ctx context.Context, req *TaskCreateRequest) (*Task, error)
-	GetTask(ctx context.Context, id string) (*Task, error)
-	UpdateTask(ctx context.Context, id string, req *TaskUpdateRequest) (*Task, error)
+	GetTask(taskID string) (*Task, error)                                    // Simplified for MVP
+	UpdateTask(task *Task) error                                             // Simplified for MVP
 	ArchiveTask(ctx context.Context, id string) error
 	ListTasks(ctx context.Context, filter *TaskFilter, page, pageSize int) (*TaskList, error)
 
@@ -19,6 +19,7 @@
 
 	// Task queries
 	GetTasksByOwner(ctx context.Context, ownerID string, page, pageSize int) (*TaskList, error)
+	GetTasksByAssignee(assignee string) ([]*Task, error)                     // For MVP auto-assignment
 	GetTasksByStatus(ctx context.Context, status TaskStatus, page, pageSize int) (*TaskList, error)
 	GetTasksByPriority(ctx context.Context, priority TaskPriority, page, pageSize int) (*TaskList, error)
 }