Classic MRM assumes a definable model with stable inputs and a measurable output. Agentic AI breaks that assumption — it is non-deterministic and acts across steps — and was placed outside the scope of revised US guidance (OCC 2026-13 / SR 26-02).
Governing agents therefore leans on frameworks like the NIST AI RMF and ISO/IEC 42001, plus validation over decision sequences, audit trails, and human oversight.