Kobolds with a keyboard.
(like action 23 = “mess with the sketchy microwave”)
How much time are you spending devising this system? Because you’re going to have to devise the system anew each week, unless you also store instructions for deciding on a system in the file.
How do you store what killed you? Theoretically you can’t edit the log once you die (you’d just start the new loop, with no memory of what killed you).
More importantly, why do you want to escape? This hypothetical time loop sounds awesome.
You can fit quite a lot of plain text in 1kb; it’s really just a 1024 character message. What you’d want to store would really be dependent on how the day went, but starting with “You are in a time loop. It resets every week on Monday at 6AM” would probably be sufficient to get things rolling; that’s only 61B.
I’d just add information that helped me have the best 7 days possible - really just a schedule of things to do. Did I read a really good book? Note that down, read it every week, enjoy that time. Did I play a great game? Same thing. Once I found 7 days worth of activities that were maximally enjoyable, I’d be happy to just stay in that time loop forever; the memory reset is really a blessing, not a curse.
I don’t feel compelled to answer questions that don’t apply to me or which were not directed at me, so I don’t know.
The problem with this is that if you’re using anything ‘non-standard’, you have to devise this system during your 7 days, and then you have to include in your message enough information to figure the system out anew when the loop resets. You’ve got to be specific enough that next-loop you will definitely figure out the exact same system, or you might mis-interpret your message and if you lose the information that you’re in a loop, you’re fucked.
Basically my point is, you’re wasting prime time that could be spent on some enjoyable activity in each loop. Unless solving your own puzzle is enjoyable, in which case, you do you - you can spend eternity living in your own Memento-inspired personal mystery, if you want to.