Thankfully Xerox PARC has an answer for that across Smalltalk, Interlisp-D, XDE, and Cedar, and copied to certain extent in modern programming languages, REPL environments and notebooks.

Augmented nowadays with agent environments and tools in IDEs, which can even be voice controlled.

9front does that without emulating a terminal. Grep, cc, awk, walk (no find and magical incantations with -print0 there), functions instead of aliases on rc, better lists () in rc, and so on. And you can launch these command inside your graphical editor such as sam or better, Acme. And even as a pipe to selections.