This handles the metadata side of building Salesforce Lightning apps, the containers that organize your tabs and features into focused workspaces. It's smart about navigation types, defaulting to Standard for most business apps but guiding you to Console when you actually need split-view multi-tab workflows. The documentation is thorough on action overrides, which matters because you need them configured correctly when you've got custom FlexiPages, and it won't let you skip branding setup. One thing to appreciate: it's opinionated about when Console navigation is overkill, which saves you from over-engineering simple apps. Good for when you're standing up new Lightning apps or fixing deployment errors tied to application metadata.
npx skills add https://github.com/forcedotcom/sf-skills --skill generating-custom-application