Hey, thanks for the report. This is a known issue with the Agent’s to-do list functionality, and the team is actively investigating it.
As mentioned in a related topic, there’s a broader problem where to-do lists don’t always sync correctly during Agent runs. They may fail to update, not mark tasks as complete correctly, or show empty strings. Your case, where the Agent creates new empty to-dos instead of using existing ones, is likely related to the same underlying issue.
The team is already working on improvements to the to-do functionality in Plan mode, and I’ve noted your specific case where model switching seems to make the problem worse. Please let me know if you find any workarounds or additional patterns.