01 — Minimal connection best first stop

Detect the extension, request allow-list approval, open or reuse a controlled tab, focus it again, then close it. Tiny, clear, and honest.

SDK demo 1 of 3 — Minimal
Start here, then continue to cursor showcase.
SDK homeNext
SDK proof
1Connection checkedRTOconnectOnce
2Host policy visibleallowlist
3Controlled tab reusedtabKey
4Overlay + highlightDOM safe

What this page demonstrates

  1. Detection and bridge setup with RTOconnectOnce()
  2. Modern 8.5.0 allow-list request flow from the page
  3. Stable tabKey reuse for one controlled tab
  4. A tiny overlay proof so the control is visible, not magical
Click “Check connection” to begin.

A tiny truth: if the host is not allow-listed yet, the plugin should refuse control. That is a feature, not a bug.