Every AI-generated Finnish text has telltale signs: passive voice everywhere, missing discourse particles like -han and -pä, and awkward genetive chains that sound like bad translations. This skill catches 26 specific patterns (12 Finnish-specific, 14 universal) and rewrites them to sound like actual Finnish people wrote them. Works well on marketing copy, documentation, and any .md files where you need to remove that robotic feel. It preserves technical content and code examples while fixing the flow and voice. The pattern detection is solid and it explains what it changed, though you'll want to review formal business texts carefully since it tends toward conversational Finnish.
npx skills add https://github.com/github/awesome-copilot --skill finnish-humanizer