Feature Request: Instruct Model use for Subagents

[Helmi]

Hey team,

I would really like to be able to instruct Claude Code to use a certain model for Subagents. I am on a Max 20x plan but i'm happy to take Sonnet for many tasks but I know I need Opus for some. Especially on longer running tasks (I have some going for multiple hours with many subagent calls) I would like to be able to use Opus for the orchestrator and some of the planning tasks but I'd also like to be able to Sonnet for the others.

It would be great if we could have toolcall-like possibilities to switch the model by instruction.

"Use paralell subagents to read the files in the docs/db directory" seems to work fine right now.

Something like

"Use model:sonnet on parallel subagents to read the files..." would be amazing - might as well be different wording if needed.

Any chance you can support this?

Cheers, Frank