Run vercel-doctor on a Next.js project to find costly Vercel patterns BEFORE they inflate the bill, then route the fixes to the owning dev-flow skill (data-fetching for caching, design-md-to-app for images). The cost counterpart to compliance-audit (legal gate); dev-flow proposes it before a Vercel deploy. Use when the user says "my Vercel bill is high", "optimize for Vercel", "reduce Vercel cost", "vercel-doctor", "check caching / function duration / image cost". Refuses for non-Vercel / non-Next targets. Not for: legal/privacy audit (use compliance-audit), building features, or actually deploying (use vercel-deploy).
compliance-audit.vercel-deploy.data-fetching.phase, and never blocks deploy by itself./plugin install dev-flow@dev-flow # the whole suite
./install.sh --platform claude # or drop dist/vercel-doctor.skill into Claude Code