What OpenCode primitive did you use to implement this? I'd quite like a "senior" Opus agent that lays out a plan, a "junior" Sonnet that does the work, and a senior Opus reviewer to check that it agrees with the plan.
The models can call each other if you reference them using @username.
This is the .md file for the manager : https://pastebin.com/vcf5sVfz
I hope that helped!