> Especially when you’re deep into the context window.

Though that is, at least to me, a bit of an anti-pattern for exactly that reason. I've found it far more successful to blow away the context and restart with a new prompt from the old context instead of having a very long running back-and-forward.

Its better than it was with the latest models, I can have them stick around longer, but it's still a useful pattern to use even with 4.6/5.3

Opus has also clearly been trained to clear the context fairly often through the plan/code/plan cycle.