The model sometimes wrote the skill's invitation sentence without calling
propose_action, so users read "click below" with no card. Each card kind
now registers its invitation, and only an accepted call's result carries
it: "Card shown below your answer. Do not restate it. <invitation>".
The personalized-pages skill drops its invitation sentence and says the
call's result tells how to end the answer; the Web fixture is refreshed
for the new skill and result text.
ZiyaZhang
969b4bd5f2