The /plan share subcommand, which published a plan as a claude.ai artifact, has been removed
The /plan share subcommand has been removed entirely. It used to publish your current plan as a claude.ai artifact so it could be viewed outside the terminal. Running /plan now only shows [open|<description>] as valid arguments, with no share option.
Along with the subcommand, the related fallback message that told cloud-workspace users "the plan lives in the cloud workspace, so /plan share can't publish it from this machine yet" is also gone, since there is no longer a share path to fall back from.
Anyone who used /plan share to hand off a plan as a shareable artifact will need another way to do so; the feature is no longer available from the /plan command.