TSUMS Mountain Risk Upstreaming: Public-Layer Operational Brief

This public-layer operational brief presents TSUMS Mountain Risk Upstreaming as a modular, auditable, and procedural governance reference for mountain-region disaster risk reduction. The document translates risk upstreaming, decision vacuum detection, governance-state transition, parameter registry, replay logic, and post-incident learning into a visual and operational format suitable for public communication, training, DOI archiving, and UNDRR-oriented reference use. This brief is intentionally non-operational and non-enforcement in nature. It does not disclose TSUMS core formulas, internal weights, proprietary scoring logic, or executable governance engine design. It provides a public-facing modular interface only. The reference principle is: auditable structure, modular disclosure, procedural clarity, and non-disclosed core logic. TSUMS principle: Self-Protection, then Help.