I'd like to see more emphasis in improving tooling and less in creating new languages too. I feel like the battery of concepts from different languages is "goo

I'd like to see more emphasis in improving tooling and less in creating new languages too. I feel like the battery of concepts from different languages is "good enough" for concisely and elegantly expressing software solutions (if you mix and match them), but annoys me that programming language authors seem to leave the implementation of debuggers, language analysis tools, and editors support to the final stages of the project. E.g. in a lot of languages, getting and working AST of it is no easy matter and many times relies on user supplied libraries. Same for repls/debuggers.