$ cp -r examples/ch05/budget-vs-actual-2 /tmp/budget-vs-actual-2
$ mv /tmp/budget-vs-actual-2/scripts/bva.py /tmp/budget-vs-actual-2/
$ python3 tools/validate_pack.py --auto /tmp/budget-vs-actual-2
/tmp/budget-vs-actual-2: FAIL (split, 3/20 files, 44502 bytes below the root)
  error: SKILL.md: spec 3.4.1: path `scripts/bva.py` does not exist relative to the pack root
  error: SKILL.md: spec 3.4.4: `<pack root>/scripts/bva.py` does not exist relative to the pack root
