The Slack number is the part that frames the whole problem well, only about 20 percent of runs following the same sequence. Without that, repeatability sounds like a nice extra instead of the core requirement for regression tests and audits. The three approval gates are the detail I would keep too, especially the one before the write to qTest, since a bad decision saved into a workflow repeats on every run. The point about humans deciding whether a test checks the right thing is the honest limit of the whole approach, and it is good to see it stated plainly.