@thdxr I wonder if it may be helpful to omit this rule in the TypeScript boilerplate

.gitignore

– https://github.com/serverless-stack/serverless-stack/blob/master/packages/create-serverless-stack/templates/typescript/.template.gitignore#L13 I had a project with a mix of JS and TS files (in the process of learning TS) and didn’t realize until a bit later that a number of files weren’t being committed to version control.

This is a carryover from the CDK itself. I'd recommend following it up with your src directory with a ! if you dont want it to clean out a directory. i.e.

!src/**/*.js

Gotcha. Thanks Derek