Update app.py

app.py

@@ -53,7 +53,13 @@ class ImageCaptionTool(Tool):
 
     def forward(self, image):
         prompt = "Please describe the content of this picture in detail."
-        return self.model(prompt, images=[image])
+        result = self.model(prompt, images=[image])
+        # 兼容AgentText等包装类型，确保返回str
+        if hasattr(result, "to_raw"):
+            return result.to_raw()
+        if hasattr(result, "value"):
+            return result.value
+        return str(result)
 
 class AudioToTextTool(Tool):
     name = "audio-to-text"
@@ -72,7 +78,12 @@ class AudioToTextTool(Tool):
 
     def forward(self, audio):
         prompt = "Please transcribe this audio content into text."
-        return self.model(prompt, audios=[audio])
+        result = self.model(prompt, audios=[audio])
+        if hasattr(result, "to_raw"):
+            return result.to_raw()
+        if hasattr(result, "value"):
+            return result.value
+        return str(result)
 
 # --- Basic Agent Definition ---
 # ----- THIS IS WERE YOU CAN BUILD WHAT YOU WANT ------