Career frameworks people can actually use
A ladder that requires interpretation by HR is not a ladder.

A career framework has one reader: someone who wants to know what to do next. Most frameworks are written for a different audience, usually a compensation committee, and it shows.
Write it in the second person
You own delivery for a team. You are trusted with ambiguous problems. You influence work outside your immediate team. That reads as guidance. Demonstrates cross functional influence reads as a rubric.
Three dimensions is enough
Scope of work, autonomy, and impact on others. Most frameworks have eight to twelve dimensions, which produces a document nobody reads and a promotion case nobody can assemble.
Show real examples
Anonymised examples of work at each level do more than any amount of language. This project, at this level, is what it looked like. People calibrate from examples far better than from adjectives.
Handle the senior individual contributor path honestly
Most companies claim a technical track that goes as high as management, and most do not actually promote anyone above the first senior level on it. If your top individual contributor level has been empty for three years, do not advertise it. Either use it or admit the ceiling, because pretending is worse than either.
Say what a promotion is
A promotion recognises that someone is already operating at the next level, or it is a bet that they will. Pick one and be consistent, because mixing the two is the single largest source of perceived unfairness in promotion cycles.
Keep it stable
The value of a framework accumulates through repeated use. Rewriting it every year resets everyone's mental model and teaches people not to invest in it. Fix genuine defects, resist the rest, and revisit properly every couple of years.