Why?

It seems just fine to me. This is what Anthropic needs to do if they want to survive. I'm always looking out for someone to integrate an actually good harness to a good model. Once that happens, I'm jumping ship if Anthropic keeps playing these tricks.

It's almost unusable for me now. A simple prompt to merge 3 sub-100-line files with simple node code, on Sonnet 4.6, uses up 20% of my 5 hour quota, on a new/fresh session.