Issue要件に基づき、draft/design/に設計書を作成する。worktree内での作業が前提。
$npx -y skills add apokamo/kaji --skill issue-designInstalls into the current project.
Run `npx skills use "https://github.com/apokamo/kaji" --skill "apokamo/kaji/issue-design"` 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/apokamo/kaji" that are relevant to the current task. Run `npx skills add "https://github.com/apokamo/kaji"` and select the relevant skills, then follow their instructions.