Isomorphic-by-default principle, environment boundary functions (createServerFn, createServerOnlyFn, createClientOnlyFn, createIsomorphicFn), ClientOnly component, useHydrated hook, import protection, dead code elimination, environment variable safety (VITE_ prefix, process.env).
$npx -y skills add tanstack/router --skill execution-modelInstalls into the current project.
Run `npx skills use "https://github.com/tanstack/router" --skill "tanstack/router/execution-model"` 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.