Version 2 of Exit Descriptions by Matthew Fletcher begins here.

"Appends a list of exit directions and names any previously visited rooms at the end of a room description."

The amount is a number variable.
The amount is 0.

The num is a number variable.
The num is 0.

After looking:
Change the amount to the number of adjacent rooms;
repeat with destination running through adjacent rooms begin;
if the num is 0, say "Exits:";
let the way be the best route from the location to the destination, using even locked doors;
if the way is a direction, say " [way]";
if the destination is visited, say " to [the destination]";
Decrease the amount by 1;
Increase the num by 1;
if the amount is 0, say ".";
if the amount is 1, say " and";
if the amount is greater than 1, say ",";
end repeat;
Change the amount to 0;
Change the num to 0.

Exit Descriptions ends here.