claudeSink wrote every raw transcript into brain/wiki/claude-sessions/facts/ (BM25-indexed), duplicating what ai-sessions' curated summaries already cover and out-ranking them in search (177,818 vs 45,335 BM25 weight on the same query, per ai-sessions#10 investigation). Raw dumps now land in brain/archive/claude-sessions/<host>/ — kept for deep lookups, never indexed, never deleted. Refs: ai-sessions#10