Turns out that I won't be making that post after all.

Yannick, the creator of yould liked my process enough to add another option to basic yould command.

To test the quality of any yould engine, type the following:
yould -t foo.yould -q

You will get a percentage of real words generated by the engine listed in the command. Anything under 10% will say that more training is needed. Between 10 and 20 % will say sufficient training. Over 20 will say well trained.

This option is in the 3.9 beta. It should be released soon.

How good are the engines that are created with Yould? Here a good way to find out:

First, create a complete word list used in an engine
yould -t cicero.yould -s > wordlist.txt

Second, generate 100 words with the engine using --real-words flag
yould -t cicero.yould -r -n100 > co100.txt

Third, sort the 100 words in alphabetical order
sort co100.txt > sco100.txt

Fourth, run a comparison that prints out only the words in sco100.txt that are not in wordlist.txt
comm -23 sco100.txt wordlist.txt > compare.txt

Fifth, count the number of lines in compare.txt
wc -l compare.txt

You can script this as well, just needed to make some notes before doing some explanation later. This works on Windows if you use unixutils from sourceforge. Very handy toolset to have.