Update app.py

app.py

@@ -16,11 +16,13 @@ DEEPL_FREE_ENDPOINT = "https://api-free.deepl.com/v2/translate"
 
 @tool
 def agent_translate(text: str) -> str:
-    """
-    A translation tool using free DeepL API.
-    1) If text starts with 'PL:', translate the rest to Polish.
-    2) If detected language == 'ru', translate to English.
-    3) Else translate to Russian.
+    """A tool that translate text with next logic:
+        1) If text starts with 'PL:', translate the rest to Polish.
+        2) If detected language == 'ru', translate to English.
+        3) Else translate to Russian.
+        and return translated text
+    Args:
+        text: text in russian/english or polish languages.
     """
     if text.startswith("PL:"):
         original = text[3:].strip()