Just wanted to chime in and co-sign the issues OP brought up. The OAuth and "thinking is in a bubble" issues being the most significant for me.

I posted feedback FB22388572 for this. I didn't see anyone else call out a bug number.

I filed this feedback on the OAuth issue: FB22388572

There are a couple of other threads on the OAuth issue. This morning I went into the Xcode components and uninstalled Claude Agent. Then I reinstalled it. SO FAR I haven't had a failed to authenticate, but it's too early to be sure.