Instead of comments+data+logging as three sources of truth of what the system does/did, only do logging. If your system observed something, it writes it down (

Instead of comments+data+logging as three sources of truth of what the system does/did, only do logging. If your system observed something, it writes it down (logs it). If you want your system to react to that thing happening, then the log is going have to be machine-parsable.