From Evaluation to Feedback: A Feature-Based and LLM-Constrained Tool for Korean Writing Assessment. - Chanwoo Jang; Ganghee Go; Jinyong Yun; Seokho Ahn; Myung Sun Shin; Ho-Hyun Kil; Sungmin Chang; Do-Guk Kim; Young-Duk Seo (SAC, 2026)