Written before opening wiki/, committed first so the prediction is timestamped and cannot be retrofitted once the answer is known. Contamination declared inline: paths already seen this session via generator_sources.py and visual_scenarios.gd are marked [SEEN] and discounted. Scoring rule fixed in advance, with 'load-bearing thing I did not know existed' as the bucket that decides what gets documented.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>