Code review flagged two implicit invariants worth pinning with comments: - 'mention' must precede 'link' in INLINE_PATTERNS so the @[X](Y) prefix takes priority over plain link parsing - format_id_with_dashes is required because the Notion mention API expects a dashed UUID while extract_notion_id returns dashless 32/32 tests still pass. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>