A careful, step-by-step habit of finding the cause of a failure: reproduce it, change one thing at a time, record results and avoid guessing.
No statement on what tools can do has been recorded for this skill yet.
The Hub knows of no registered course, programme or certification for this skill yet.
Note from the research register: Verification and lab work, mentors who insist on method, and many real bug hunts.
Register version 1.