Update app.py

app.py

@@ -166,6 +166,11 @@ def sync_from_hf():
         try:
             dataset = load_dataset(HF_DATASET_REPO, split="train", token=HF_TOKEN)
             
+            # Check if dataset is empty
+            if len(dataset) == 0:
+                print("ℹ️  Dataset exists but is empty")
+                return False
+            
             # Convert dataset to SQLite
             conn = get_db_connection()
             cursor = conn.cursor()
@@ -199,8 +204,9 @@ def sync_from_hf():
             return True
             
         except Exception as e:
-            if "not found" in str(e).lower() or "doesn't exist" in str(e).lower():
-                print(f"ℹ️  Dataset '{HF_DATASET_REPO}' doesn't exist yet, will create on first save")
+            error_msg = str(e).lower()
+            if "not found" in error_msg or "doesn't exist" in error_msg or "doesn't contain any data files" in error_msg:
+                print(f"ℹ️  Dataset '{HF_DATASET_REPO}' doesn't exist yet or is empty, will create on first save")
                 return False
             else:
                 print(f"⚠️  Error loading dataset: {e}")
@@ -444,6 +450,7 @@ def check_topic_similarity(new_topic: str) -> str:
 
 @tool
 def count_words(text: str) -> str:
+    """Count the number of words in the given text."""
     return f"Word count: {len(text.split())}"
 
 @tool