Top-level Commander wiring, welcome screen, missing-hook warning, CliError exit handling, and the public programmatic API surface
$npx -y skills add aspenkit/aspens --skill cli-shellInstalls into the current project.
Run `npx skills use "https://github.com/aspenkit/aspens" --skill "aspenkit/aspens/cli-shell"` 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/aspenkit/aspens" that are relevant to the current task. Run `npx skills add "https://github.com/aspenkit/aspens"` and select the relevant skills, then follow their instructions.