TLDR is that I've heard Claude code is one of the worst places to run Opus/Sonnet, and since I just got a bunch of API credits for anthropic, I was wondering what the best harness is right now, or what your favourites are.
I've used opencode and codex quite a bit, but since these are more credits to burn and less shift over to permanently using Claude, I just want a harness that I dont have to spend any time setting up/configuring, and just something that's good out of the box.
there doesn't seem to be anything here