diff --git a/ai_planner.py b/ai_planner.py
index 5c9dbe2..c7a9b9f 100644
--- a/ai_planner.py
+++ b/ai_planner.py
@@ -334,6 +334,9 @@ class AIPlanner:
 
             t_json0 = time.perf_counter()
             data = json.loads(raw_text)
+            if _glm_debug_enabled():
+                finish_reason = data.get("choices", [{}])[0].get("finish_reason")
+                print(f"[GLM][디버그] finish_reason={finish_reason!r}")
             content = self._extract_glm_assistant_text(data).strip()
             if not content and _glm_debug_enabled():
                 # content가 비어있으면 아래 파서에서 원인 추적이 어려워지므로 raw 일부를 남긴다.