MinAgent 0.155.0 (unchanged). Tests red-proved by mutation (A: 10, B: 7, C: 1, C2: 2). Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6