So, a lot of what you're describing with tilting the odds and working in the fiction as long as possible is a mode that I am pretty familiar with from a pretty wide swathe of OSR stuff - it's the mindset i bring to those, though whether a given text foregrounds that is hit or miss across the board. I think Mausritter has some pretty good stuff on that point, where it leverages both its lack of roll-to-hit and the fiction of Being A Mouse Sized Mouse to remind you that you should always be fighting dirty if at all. You may also find The Nightmares Underneath's framework helpful:
"When you undertake some kind of task that requires skill, or is dangerous and risky, the GM may ask you to make a save to accomplish it (thus saving yourself from the jaws of failure).
-If you are skilled and you have the proper tools at hand, you must save against the relevant attribute’s full score in order to get the job done.
-If you are skilled but have only the minimum necessary in terms of equipment or tools to get the job done, you must save against half the relevant attributes score, rounded down, to be successful.
-Likewise, if you are unskilled, but have a good set of tools to use, you must save against half the relevant attributes score, rounded down, to succeed.
-If you have neither the skills to complete the task nor the proper equipment, you cannot succeed at your task."
Implicit to all of this being that the circumstances described by the given difficulties are clear steps to take in improving your lot in attempting the task!