<!--- Please read this! Before opening a new issue, make sure to search for keywords in the issues filtered by the "feature" label: - https://gitlab.com/gitlab-org/cli/-/issues/?label_name%5B%5D=type%3A%3Afeature and verify the issue you're about to submit isn't a duplicate. ---> ### Problem to solve We should have a `glab stack <subcommand>` to list all existing stacks. The only way (that I know of) to do so is to list `.git/stacked`. This provides better UX if we want to use `glab stack switch` to switch between stacks. OR `glab stack switch` can show the list of stacks. ### Proposal 1. I don't have a good name for the subcommand :sweat_smile: 1. To get the list of stacks, we can list `.git/stacked` - To note that it should also work in worktrees. ### Links / references Related ticket regarding `glab stack` behaviour in worktrees: https://gitlab.com/gitlab-org/cli/-/work_items/8329