Update Vercel Shop

Bring an existing Vercel Shop project up to date with the template by reasoning about individual rollout entries, never by diffing against a template version. Downstream storefronts often adopt only part of the template, so every decision must be validated against the current codebase.

Pick a mode

Infer the mode from the user's request:

• Audit — report how far the project has drifted. Read-only; stop after the audit phase.
• Plan — produce a change-level upgrade plan. Read-only; stop after the plan phase.
• Apply — plan, confirm the selection with the user, then apply and validate. Use this when the user asks to "update" or "upgrade" the shop.

Read these inputs

1. .vercel-shop/bootstrap.json in the project root — original templateVersion and scaffoldedAt
2. .vercel-shop/rollout-state.json in the project root — decisions recorded by earlier runs of this skill (may not exist)
3. The current rollout log and template version, fetched from upstream (see below)
4. AGENTS.md and .claude/settings.json in the project if present
5. The current project structure and any files named by matching rollout entries