By "advisor model pattern" you mean https://claude.com/blog/the-advisor-strategy ?

How do you implement that outside of claude code?

the easier way to do this, with any harness, is to use an expensive main agent that is told to delegate all code reading, writing, exploration, research etc to weaker subagents to conserve tokens. It's an inversion of the pattern but the resulting split is the same

Yeah, that one is easy, but I was thinking of the other way around, where the weak model calls stronger one.

I append this to many of my opus claude code prompts

`You may use a Fable subagent to answer questions, solve problems, and provide an adversarial review of your ideas and code`

You can use a similar pattern in most any harness, and you can tell them to use other harnesses. In claude you can write `Use codex cli to have Sol56 Xhigh provide an adversarial review to your plan before presenting it to me` or `Use opencode cli with GLM 5.3 to verify all code review findings before presenting` or whatever you're doing, as long as those other tools are setup and ready to be called.

IMO: This isn't useful as a token saving pattern in my experience with agentic engineering, but it is useful as a quality-enhancer.