wangyu
7d4345c29d
Two-module pipeline for AI companion safety: - Module B: context-aware risk detector with CrossAttention fusion - Module C: PPO-based adaptive intervention policy Includes CompanionRisk Taxonomy (10 primary + 14 fine-grained labels), dataset generation/annotation pipeline, training scripts, and eval suite. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>