- test_ui_text.py: key parity, placeholder parity, English-left-in-Dutch, semicolon, 25-word description and 2-sentence line each now fail on a spoiled input (the English-left check was not a real mutation). - Jargon lists now cover the whole 'Not' column of STYLE.md section 4, in English, with the Dutch equivalents. - nl.json: 'gewijzigd worden' where 'wijzigen' read as intransitive, 'Bezig met bewaren' for the saving state, 'Metingen kloppen niet'. - test_uimodel.py: an overlap that changes partners is named piece by piece (a surviving mutant of _tiling's partner check). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>