Source
Primary sources are prioritized for material data and field-level provenance is preserved.
METHODOLOGY
Why did YST return this result — and where can you verify it?
YST brings sources, verification dates, limitations and reasons into the experience. When evidence is insufficient, the system is designed to say “not enough information” rather than manufacture a recommendation.
Source-awareFreshness-awareNo profit guarantee
Freshness
Verification date, review due and stale/conflicted state are part of the data model.
Explainable fit
Eligibility → must-have → priorities → result; commercial data stays outside the decision plane.
Limitations
When data or formulas are insufficient, YST returns an unknown state rather than guessing.
Source→Normalize→Verify→Tool / Content→Explain