To show the interactivity and the commands it would execute:

release-it --dry-run

Note that read-only commands are still executed ($ ...), while potentially writing/mutating commands are not (! ...):

$ git rev-parse --git-dir
.git
! git add package.json
! git commit --message="Release 0.8.3"

To print the next version without releasing anything, use the --release-version flag.

To print the changelog without releasing anything, use the --changelog flag.