xdg-base-directory
4When an application needs to store config, data, cache, or state files. When designing where user-specific files should live. When code writes to ~/.appname or hardcoded home paths. When implementing
xdg
base
directory
Also installable via skills CLI
npx skills add Jamie-BitFlight/claude_skills/plugins/xdg-base-directory/skills/xdg-base-directory