{
  "title": "Split the brother_printer display and usb_query test modules under the 250-line cap",
  "objective": "Bring test_display.py (363 lines) and test_usb_query.py (328) under the repo-wide 250-line cap by partitioning them at class boundaries, and retire display.py's now-dead __all__ re-export block once no test reaches the supply helpers through it.",
  "acceptance_criteria": [
    "test_display.py, test_supply_levels.py, test_usb_query.py and test_usb_query_sequence.py are each at most 250 lines.",
    "The brother_printer suite still reports exactly 402 passing tests -- the same count as before the split, proving no test was dropped or silently skipped.",
    "The package keeps 100% branch coverage of the brother_printer source modules.",
    "display.py keeps every name that test_display.py and test_display_part2.py patch on it as a real module attribute, verified by an import-time probe rather than inferred from a green run.",
    "The six _supply names are removed from display.py's __all__ only after confirming by grep that no source module and no test still imports them through display.",
    "No assertion is changed and no test is deleted, skipped or weakened; whole classes move verbatim and only the import blocks are adjusted.",
    "No suppression is added and no coverage exclusion is introduced."
  ],
  "out_of_scope": [
    "Changing what any test asserts.",
    "Moving _display_supply_levels or _display_supply_warnings out of display.py: test_display_part2.py patches _display_supply_levels there.",
    "Splitting test_check_brother_printer.py or the consumables pair, which are separate commits."
  ],
  "verifier": "PYTHONPATH=. python3 -m pytest python_pkg/brother_printer/tests -q (expects exactly 402 passed), plus the display attribute probe, plus pre-commit run --files on the touched files, plus bash ~/utils/scripts/check_file_length.sh --all for the cap."
}