Dimension Door is the quick-switch spell: branch to branch, environment to environment, project to project. It is not a migration and it is not discovery. It assumes both endpoints are known, prepared, and close enough in shape that you can step across with only the context you actually need.
$npx -y skills add hmbown/wizards-of-the-ghosts --skill dimension-doorInstalls into the current project.
Run `npx skills use "https://github.com/hmbown/wizards-of-the-ghosts" --skill "hmbown/wizards-of-the-ghosts/dimension-door"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/hmbown/wizards-of-the-ghosts" that are relevant to the current task. Run `npx skills add "https://github.com/hmbown/wizards-of-the-ghosts"` and select the relevant skills, then follow their instructions.