It may occasionally be useful to check whether all objects in our game have a given property. Here we have a "not for release" section that will run at the start of the game and alert us to any objects lacking description:

"Bic"

Section 1 - Testing descriptions - Not for release

When play begins (this is the run property checks at the start of play rule):
    repeat with item running through things:
        if description of the item is "":
            say "[item] has no description."

Section 2 - Story

The Staff Break Room is a room.

The player carries an orange, a Bic pen, and a napkin. The description of the orange is "It's a small hard pinch-skinned thing from the lunch room, probably with lots of pips and no juice."

The description of the napkin is "Slightly crumpled."

Sometimes we want to let testers of a game insert their own comments during a transcript, without those comments wasting turns of the game or producing lengthy or inappropriate parser errors. Many testers have a habit of prefacing comments with a punctuation mark, so let's say that we'd like to catch any command that starts with any punctuation at all:

"Alpha"

When play begins:
    say "Hi, Larry! Thanks for testing my game!!"

Unimplemented Room is a room. "Room description goes here..."

The scary troll is a man in Unimplemented Room.

After reading a command (this is the ignore beta-comments rule):
    if the player's command matches the regular expression "^\p":
        say "(Noted.)";
        reject the player's command.

Test me with "x me / x troll / !this game is a bit dull so far / kiss troll / ? does this troll do anything? / :yawn".