They even block Claude Code of you've modified it via tweakcc. When they blocked OpenCode, I ported a feature I wanted to Claude Code so I could continue using that feature. After a couple days, they started blocking it with the same message that OpenCode gets. I'm going to go down to the $20 plan and shift most of my work to OpenAI/ChatGPT because of this. The harness features matter more to me than model differences in the current generation.
Opencode as well. Folks have been getting banned for abusing the OAuth login method to get around paying for API tokens or whatever. Anthropic seems to prefer people pay them.
a 200 dollar a month customer isn't trying to get around paying for tokens, theyre trying to use the tooling they prefer. opencode is better in a lot of ways.
tokens get counted and put against usage limits anyway, unless theyre trying to eat analytics that are CC exclusive they should allow paying customers to consume to the usage limits in however way they want to use the models.
Anthropic is offering a steep discount in their plans. I highly doubt they want you using it in a harness where you can trivially switch away when someone else releases a better model
A $200/m max subscriber using OpenCode and not wanting to use API keys with pay-per-token pricing is very clearly trying to get around paying for tokens.
There is no monthly limit, it (currently) is a weekly and 5-hourly limit. If they allow anyone to use any tool with their subscription service, you could have a system (like OpenClaw) which involves 0 human interaction and is constantly consuming 100% of your token limit, then waiting until limits reset to do it all over again. It seems fairly clear that Anthropic is probably losing money on such usage patterns.
Once again: you can use API keys and pricing to get UNLIMITED usage whenever you want. If you are choosing to pay for a subscription instead, it is because Anthropic is offering those subscriptions at a much better value-per-token. They are not offering such a subscription out of the goodness of their heart.
I wonder if it has to do with Grok somehow. They had a suspiciously high reputation until they just binarily didn't, after Anthropic said they did something.