How to change content in ChatMessageContent in a safe way

[DmitryLukyanov]

I have a chatbot implemented using Semantic Kernel that retrieves responses via IChatCompletionService.

In certain scenarios, the model’s output needs to be post-processed: the original text is validated and, if necessary, replaced with a rephrased version generated by a separate LLM call that is not part of the same conversational context.

Currently, this is handled by creating a new ChatMessageContent instance with the updated text:

 return new ChatMessageContent(role: original.Role, content: updatedContent);

and adding it to the chat history. However, this approach discards metadata from the original response (such as ModelId, InnerContent, and related fields).

Retaining the original metadata while modifying the text also seems problematic, as it could introduce inconsistencies between the content and the associated model details.

Is creating a new ChatMessageContent the correct approach in this situation, or is there a more appropriate pattern for handling post-processed model responses in Semantic Kernel?