Automatic code splitting (autoCodeSplitting), .lazy.tsx convention, createLazyFileRoute, createLazyRoute, lazyRouteComponent, getRouteApi for typed hooks in split files, codeSplitGroupings per-route override, splitBehavior programmatic config, critical vs non-critical properties.
$npx -y skills add tanstack/router --skill code-splittingInstalls into the current project.
Run `npx skills use "https://github.com/tanstack/router" --skill "tanstack/router/code-splitting"` 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/tanstack/router" that are relevant to the current task. Run `npx skills add "https://github.com/tanstack/router"` and select the relevant skills, then follow their instructions.