Idea. It would be nice to have a lint check or a way to designate that compose function is expected to start with a row or column.

What do you mean?

I have compose functions calling other compose functions. If the invoked function is inside a row and starts with a row, bad things happen.

You can declare your composable functions as extensions on the children scopes for those layouts, e.g.

@Composable fun RowScope.MyFunction() {