Promise. User-facing text lives in text blocks and resolves with a fallback chain that ends on the key itself — so a hole is visible. Plurals use CLDR categories. Data-plane results must not depend on locale; t, formatDate, and formatMoney cannot feed a stored value (E-TYPE-08).
Text has one home
Labels live in text blocks, never inline. A missing translation falls back to the key, so the hole is visible.
Plurals that are right
Plural categories come from CLDR, so Arabic and Polish are not an afterthought bolted on later.
Two planes, enforced
t, formatDate and formatMoney cannot feed a stored value. The type checker says no.
form loan version = "1.0" {
text {
"income.annual" = "Annual income"
"income.annual" @fr = "Revenu annuel"
}
field annual_income {
type = number
label = t("income.annual")
validate { min = 0 }
}
output {
annual_income: number
}
}
French labels may change. The output number must not.
Boundary. Brand CSS and a translation management system are still yours. The host supplies CLDR data.