And don't tie yourself to a harness. Shun models that don't let you pick the harness (Google). Anthropic is indifferent at the moment because the OpenClaw craze is over. Vote with your wallet.
I can't imagine too many easier things to untie yourself from than a Harness...
How is Anthropic different? You still cannot use a subscription in a custom harness in the same way Codex allows you to.
And, no, wrapping claude -p or any other “allowed” use wherein you don’t control the agent loop isn’t the same.