For anyone writing to Australian clients or teams who's tired of sounding like an American corporate robot. Handles EN-AU spelling (colour, organise, centre), but more importantly it's a complete tone guide for professional comms. Includes a formality ladder for different contexts, specific sign-off guidance (spoiler: "cheers" is the default), and a ruthless list of American business jargon to avoid ("reach out", "circle back", "touch base"). The examples are genuinely useful, showing the difference between too stiff, too casual, and actually professional. Works for emails, Slack messages, proposals, anything client-facing. Honestly just a solid business writing guide that happens to be Australian.
npx skills add https://github.com/jezweb/claude-skills --skill aussie-business-english