{"design_filename": "docs/system_design/20231221155954.json", "task_filename": "docs/tasks/20231221155954.json", "codes_filenames": ["game.py", "main.py"], "reason": "```json\n{\n  \"game.py\": \"Add handling for no empty cells in add_new_tile function, Update score in move function\",\n  \"main.py\": \"Handle game over condition in the game loop\"\n}\n```"}