Haha in the world of AI/MCPs, all of a sudden we have a push for companies to properly build out APIs/CLI tools.
But saying "it's for AI" is a corporate life hack for you to get permission to build said better tooling... =)
CharmCLI golang
Nushell rust
Warp. Shell
Were all around 2020 also that is when alt shells started getting popular probably for same reasons they still are.