# MergeTagReference

## 2026-08-04 — New component

**Prompted by:** thinh (Email Marketing Hub review, BUILD-2284)

### What changed
- New molecule: a popover listing an email template's available merge tags, grouped by source (Contact / Company / Broker).
- Each row shows a human label, the literal token (mono), and a description of what it resolves to.
- Search filters across label / token / description; choosing a tag fires `onSelect(token)` and closes the popover.

### Why
- Reviewers had no way to see which personalisation tokens exist or what they mean (e.g. `{{company.name}}` appeared with no reference). This surfaces the full, documented list in the template editor.

### Affected tokens / files
- `packages/shadcn/src/components/ui/merge-tag-reference.tsx`