MAS AI risk management
AI Inventory and Risk Materiality Workbook
A free Excel workbook built on the MAS Guidelines on Artificial Intelligence Risk Management, issued 7 October 2026. It rates each AI use case from factual answers, applies your controls and lists open gaps by paragraph.
About Epiphyte Corp. We help regulated companies in Singapore with security testing (including AI systems), the compliance evidence regulators ask for, and AI governance such as the AI inventory MAS requires. Fixed price, fixed dates. Services and prices
What the workbook does
AI inventory
One row per AI use case with the para 4.7 attributes. Thirteen factual questions drive the rating; no one types a 1–3 score.
Risk materiality
Impact, Complexity and Reliance (para 4.12) combine into inherent materiality, then residual materiality after twelve Section 5 controls, checked against your risk appetite.
Gaps by paragraph
Required controls follow from the rating and attributes, such as independent validation and a contingency plan for High (paras 5.19 and 5.3). Open gaps are listed by paragraph.
Providers and incidents
A third-party register and an AI incident log feed the footnote 18 measures: AI incidents and their financial impact, material use cases on a single provider, and threshold breaches.
Readiness by date
Every expectation in Sections 2 to 6 with status, owner and evidence, split by the two dates: 7 October 2027 and 7 October 2028.
The scores and thresholds are a starting calibration, set on the Scoring sheet. MAS sets the minimum dimensions (para 4.12) and leaves the methodology to each financial institution (para 4.10).
Excel workbook (.xlsx) · 7 sheets · 177 KB
Epiphyte also runs the inventory with your teams, in 10 business days at a fixed price: services and starting prices.