Currently our fig spec integration is quite simple, basically we just pull top-level options, arguments and subcommands here:

We want to better support this in a way that we can leverage all the functionality it brings. Such as:

• When you're in a subcommand, only present that subcommands options Terminal: Add basic subcommand support for fig specs #239518
• If an option is already specified, don't allow it to be used again
• -- typically prevent all options after it
• Complex options with multiple arguments should work
• etc.