All digital assistants are complicated creatures that force you to learn a new query language. Siri is no exception. It can do a mind numbing number of activities. How do you remember everything it can accomplish?
A new site called Hey-Siri.io currently lists over 480 different commands with all of the different variations and permutations available neatly bundled in 35 categories. You can filter results with IOS or MAC and English or German.
So far it looks like the site author will maintain the site as Apple adds new abilities to Siri.