diff --git a/internal/planning/manager.go b/internal/planning/manager.go
index 5ba14f8869d245a56125b7fcc6dc7df13623c704..3a9725395d5d50d3907dd166cb3fef7cc09e0406 100644
--- a/internal/planning/manager.go
+++ b/internal/planning/manager.go
@@ -7,6 +7,7 @@ package planning
 import (
 	"fmt"
 	"log/slog"
+	"sort"
 	"strings"
 	"sync"
 	"time"
@@ -268,14 +269,10 @@ func (m *Manager) formatTaskListWithFilter(filterStatus *TaskStatus) string {
 	}
 	lines = append(lines, legend)
 
-	// Simple sort by creation time (newest first could be changed if needed)
-	for i := range len(taskList) {
-		for j := i + 1; j < len(taskList); j++ {
-			if taskList[i].CreatedAt.After(taskList[j].CreatedAt) {
-				taskList[i], taskList[j] = taskList[j], taskList[i]
-			}
-		}
-	}
+	// Sort tasks by creation time (oldest first for consistent ordering)
+	sort.Slice(taskList, func(i, j int) bool {
+		return taskList[i].CreatedAt.Before(taskList[j].CreatedAt)
+	})
 
 	for _, task := range taskList {
 		line := fmt.Sprintf("%s %s [%s]", task.Status.String(), task.Title, task.ID)