They control the default system prompt. You can change it if you want to.
> They can pick the default reasoning effort
Don't see how it's an obstacle in allowing third party wrappers.
> They can decide what to keep and what to throw out
That's actually a good point. However I still don't think it's an obstacle. If third party wrappers were bad, people simply wouldn't be using them.
Defaults matter. A large share of people never change them (status quo bias, psychological inertia). Having control over them (and usage quotas) means Anthropic can control and fine-tune what this fixed subscription costs them.
And evidently (re, the original article), they tried to do so.
Allowing third party wrappers doesn't mean Claude Code would cease to exist. The opposite actually, Claude Code would be the default.
People dissatisfied with Code would simply use other wrappers. I call it a win-win. Don't see how Anthropic would be on a lose here, they would still retain the ability to control the defaults.
I have no idea what the share of OpenClaw instances running on pi was, or third-party wrappers in general, but it was obviously large enough that Anthropic decided they had to put an end to it.
Conversely, from the latest developments, it would seem they are perfectly fine with people running OpenClaw with Claude models through Claude Code’s programmatic interface using subscriptions.
But in the end, this, my take, your take, is all conjecture. We are both on the outside looking in.
Only the people who work at Anthropic know.