using-assert

Run `npx skills use "https://github.com/lerianstudio/ring" --skill "lerianstudio/ring/using-assert"` 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/lerianstudio/ring" that are relevant to the current task. Run `npx skills add "https://github.com/lerianstudio/ring"` and select the relevant skills, then follow their instructions.