All-or-nothing at ability level (S39), duplicate ids refused (S14), set and attrs on the same path refused (S38), invalid_attr_path error. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7