There is a skill, but you don't have to use it, though you'd have to explain how to use the app.

> burning tens of thousands of tokens in context.

~1400?

> Literally just ask Claude to “call out actions in these screenshots with numbered stylized arrows”

Is there a macos native thing it uses? Or are you talking about screenshots? This draws on your screen instead.

With a skill claude will know when to use it without you specifically prompting it.