Using my proud newfound .dot skillz plus a lot of hand editing, have drawn a chart of Inform 7’s rulebook structure, including the rules and activities that Inform runs through in a given turn. (Procedural rules, which can happen any time, and some activities for managing output, which are ubiquitous, do not show up in the chart. So e.g. there is no chart entry for “printing the name of something”. But most things are in there.)
(PDF on clickthrough. It’s kind of big, I warn you.)
The plan is to refine this a bit and put it on the Inform documents page with future releases, if it is found to be helpful.