You take the smallest value and biggest value, do they work?
Take something in the middle, does that work?
Get the smallest and make it even smaller, does it break?
Get the biggest value, make it bigger, does it break?
GOTO 10
And when you got the pattern down, checking the rest is mostly just copying and pasting with different values on "smallest" and "biggest".
Something an LLM is very very good at.
Also you should always use another LLM to critique your primary one (or the same LLM with a clear context). I've found that gpt-5-high is VERY good at finding subtle bugs Claude will never catch. It can fix them immediately when I give it the Codex commentary though.
You take the smallest value and biggest value, do they work?
Take something in the middle, does that work?
Get the smallest and make it even smaller, does it break?
Get the biggest value, make it bigger, does it break?
GOTO 10
And when you got the pattern down, checking the rest is mostly just copying and pasting with different values on "smallest" and "biggest".
Something an LLM is very very good at.
Also you should always use another LLM to critique your primary one (or the same LLM with a clear context). I've found that gpt-5-high is VERY good at finding subtle bugs Claude will never catch. It can fix them immediately when I give it the Codex commentary though.