Makes sense but why not use bun repl or some other repl, rather than a new sandbox.

The sandbox is the point.

Feels like a solution to the wrong problem.

It kinda makes sense at least at this point. Models already drop down to writing scripts all the time (even for edits), why not make the write scripts for tools.

It is still kinda bullshit because model training will override any "please create scripts no mistake pls" markdown files thrown at them, so they will happily ignore Codemod