This is your pre-deployment checklist in skill form. It validates Mapbox style expressions before runtime errors bite you, checks WCAG color contrast ratios for text labels (4.5:1 for AA, 7:1 for AAA), and optimizes styles by removing empty layers and simplifying redundant boolean logic. The workflow is straightforward: validate your GeoJSON sources, check expressions as you write them, verify text readability, compare versions before committing, then optimize before shipping. It's honestly just good hygiene for production maps, the kind of stuff you skip when prototyping but absolutely need before real users see your work. The comparison tool is especially handy when you inherit someone else's style and need to understand what actually changed between versions.
npx skills add https://github.com/mapbox/mapbox-agent-skills --skill mapbox-style-quality