Load when building a standalone PolicyEngine interactive tool, calculator, or dashboard that deploys to Vercel and embeds into policyengine.org as a Next.js multizone. Covers the required stack (Next App Router + Tailwind v4 + @policyengine/ui-kit + bun), multizone zone config (basePath/assetPrefix, host rewrites, apps.json), Modal backends (gateway + worker + polling), chart patterns, and the dual-mode SEO strategy. Triggers: new tool, standalone calculator, dashboard, embed in policyengine.org, multizone, basePath, assetPrefix, appZoneRoutes, Modal backend, scale to zero, vercel --scope policy-engine, ui-kit theme.css, recharts colors. NOT for: developing policyengine.org itself (use policyengine-app) or token values (policyengine-design).
$npx -y skills add policyengine/policyengine-claude --skill policyengine-toolsInstalls into the current project.
Run `npx skills use "https://github.com/policyengine/policyengine-claude" --skill "policyengine/policyengine-claude/policyengine-tools"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/policyengine/policyengine-claude" that are relevant to the current task. Run `npx skills add "https://github.com/policyengine/policyengine-claude"` and select the relevant skills, then follow their instructions.