static void ai_activeSpec_answerOnChat(S s) {
  S response = "";
  { lock ai_activeSpecLock();
    if (has(s, "should be", "answered in the chat")
      && !has(s, "was", "answered in the chat")) {
      L<S> answers = ai_texts("$X", "answers external question", s);
      if (empty(answers))
        answers = unquoteAll(ai_texts_multi("$X", "answers", ll(s, quote(s))));
      //print("activeSpec: have answers " + answers);
      if (nempty(answers)) {
        ai_invalidateTriple(s, "should be", "answered in the chat");
        response = s + "\n=> " + joinWithComma(answers);
      }
    }
  }
  if (nempty(response) && postToStefansChat(response))
    post(s, "was", "answered in the chat");
}