Creates a tab in the given session. Optionally navigates to an initial URL.
post/tabs
Request body
userIdstring required
Session owner.
sessionKeystring required
Tab group identifier.
listItemIdstring
Legacy alias for sessionKey.
urlstring
Optional initial URL.
traceboolean
Enable Playwright tracing for this session (screenshots, DOM snapshots, network). Must be set on first tab creation; cannot be added to an existing session.