Use when the user asks to document existing implemented behavior, or Sync, Check, or Structure finds implemented behavior missing canonical truth. Not for functional-code changes, doc-first implementation, or topology repair that needs Structure.
$npx -y skills add merlinhu1/truthmark --skill truthmark-documentInstalls into the current project.
Run `npx skills use "https://github.com/merlinhu1/truthmark" --skill "merlinhu1/truthmark/truthmark-document"` 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/merlinhu1/truthmark" that are relevant to the current task. Run `npx skills add "https://github.com/merlinhu1/truthmark"` and select the relevant skills, then follow their instructions.