Here's what happened:

  1.  It started formulating the plan
 2.  Got error from provider (it seems model set sometime randomly resets to default?!?)
 3.  After I switched to different provider, I want it to continue planning, so I use \continue command
 4.  But when it gets \continue command it starts writing code without asking anything!
 5.  In the end it was still in chat mode. I never switched to tell mode, I just wanted it to keep planning.

It went from entry 3 "Made Plan" to entry 4 and so on without any input from my end.

I could not reproduce the second issue this time: I didn't get the same menu and it was more chill.

I see, it sounds like \continue is the issue—this command is designed to continue with implementation rather than with a chat, so it switches you into 'tell mode'. I'll try to make that clearer, or to make it better handle chat mode. I can definitely see how it would be confusing.

The model pack shouldn't be resetting, but a potential gotcha is that model settings are version controlled, so if you rewind to a point in the plan before the model settings were changed, you can undo those changes. Any chance that's what happened? It's a bit of a tradeoff since having those settings version controlled can also be useful in various ways.

This feedback is very valuable, so thanks again!