[pygy_]

One of the common pattern I use when developing with TS is: Change a type definition, look for red squiggles in the current file and fix them then save and build.

The error log shows me the rest of the files that need fixing.

How would you get that with Babel?

[esamatti]

I think this is just an editor concern. It could show a list of files with type errors.

But you could just run "tsc --noEmit --watch" which will just report the project wide type errors to the console as you edit files.