diff --git a/backend/routers/insights.py b/backend/routers/insights.py
index 4866b83..4643418 100644
--- a/backend/routers/insights.py
+++ b/backend/routers/insights.py
@@ -76,6 +76,8 @@ def _get_profile_data(pid: str):
         cur.execute("SELECT * FROM nutrition_log WHERE profile_id=%s ORDER BY date DESC LIMIT 90", (pid,))
         nutrition = [r2d(r) for r in cur.fetchall()]
         # Quality-Filter: nur hochwertige Aktivitäten für KI-Analyse (Issue #24)
+        # TODO (#28): quality_level als Parameter (all, quality, very_good, excellent)
+        # Zukünftig: GET /api/insights/run/{slug}?quality_level=quality
         cur.execute("""
             SELECT * FROM activity_log
             WHERE profile_id=%s