One feature I would love to have is the ability to switch the model used for a message using a shorthand like #sonnet. Often, I don't want or need opus but I don't want to engage in a 3 step process where I need to:

1. switch models using /model 2. message 3. switch back to opus using /model

Help me help you (manage usage) by allowing me to submit something like "let's commit and push our changes to github #sonnet". Tasks like these rarely need opus-level intelligence and it comes up all the time.

Agreed. I was hoping that they would add this (model selection) to the template for defining subagents.

https://docs.anthropic.com/en/docs/claude-code/sub-agents

That would be great! I want to plan and analyze with opus but happy to use sonnet for code gen. Sonnet is faster and just as good at codegen. Opus is better at planning a change.