Effectively, a HAM's internal state is like a hierarchical filesystem, where entities are like directories, conditions associated with those entities are like subdirectories, and actions inside those conditions are like leaf nodes of this tree structure.
A HAM also presents this state as a read-only filesystem under /proc/ham. As a result, arbitrary processes can also view the current state (e.g., you can do ls /proc/ham).
Besides presenting a view of the state as a filesystem, for each item (entity/condition/action) a HAM can also display statistics and information relating to it in a corresponding .info file at each level in a HAM filesystem under /proc/ham.