fix: reset retry counter on handled exceptions and add text to vision tool results

- Reset retry counter to 0 when exception is None or already handled (HandledException, RepairableException)
- Add text message to vision_load tool results to prevent model provider errors with image-only messages

plugins/_error_retry/extensions/python/agent_Agent_handle_exception_end/_80_retry_critical_exception.py

@@ -16,9 +16,11 @@ class RetryCriticalException(Extension):
 
         exception = data.get("exception")
         if not exception:
+            self.agent.set_data(DATA_NAME_COUNTER, 0) # reset counter if exception has been handled
             return
 
         if isinstance(exception, (HandledException, RepairableException)):
+            self.agent.set_data(DATA_NAME_COUNTER, 0) # reset counter if exception has been handled
             return
 
         max_retries = 1

tools/vision_load.py

@@ -56,6 +56,7 @@ class VisionLoad(Tool):
         # build image data messages for LLMs, or error message
         content = []
         if self.images_dict:
+            self.agent.hist_add_tool_result(self.name, f"Processed {len(self.images_dict)} images") # some model providers break when they get have images in message history without text
             for path, image in self.images_dict.items():
                 if image:
                     content.append(