Type Alias: CapabilityRule

CapabilityRule = boolean | ((entry) => boolean | undefined)

Defined in: model/capabilities.ts:21

A boolean pins every entry the same way; a predicate varies the answer per entry (capabilities: { resize: (entry) => entry.read('approved') !== true }).

undefined means "no opinion about this entry" (ADR 0018). The next answer down then decides — a variant's own capabilities falls to the library rule, and the consumer's own capabilities falls to the variant's can. Without it, can: { resize: (entry) => !entry.hasChildren } would read "not on a parent" and also say yes to every other row, over the rule below it. That is the bug WriteRule already answers this way for (#256).