ReadonlyactionReadonlyarchetypeReadonlyconventionThe stable convention identity, such as napplet:profile/open.
ReadonlyoptionsInstalled applets that accept the convention, preferred first. Empty when none is installed.
Optional ReadonlyrecommendedA coordinate the asking applet recommended; untrusted, a suggestion only.
ReadonlysourceThe asking applet's title.
What the chooser asks: which applet should take a request one applet made of another.