Failure Modes — MAST, Groupthink, Monoculture, Cascading Errors

The reference taxonomy for 2026 is MAST (Cemri et al., NeurIPS 2025, arXiv:2503.13657), derived from 1642 execution traces across 7 state-of-the-art open-source MAS showing 41–86.7% failure rate. Three root categories: Specification Proble...