If you need to make boardroom-ready charts that don't look like startup pitch decks, this handles the whole McKinsey aesthetic: hypothesis-driven headlines, specific color palettes with hex codes, typography rules for serif titles and sans-serif data labels, and templates for 11 visualization types from time-series growth charts to gap analyses. It's opinionated about landscape 16:9 format, hairline borders, and strategic framing over neutral comparisons. The documentation is thorough on what not to do, which is half the value. Honestly feels like someone reverse-engineered consulting slide decks and wrote down all the unspoken rules. Works well if your audience expects that institutional authority look or if you're just tired of guessing what "professional" actually means.
npx skills add https://github.com/kgraph57/mckinsey-style-visualization-skill --skill mckinsey-style-visualization