capabilityView

The current live capability view converged on this node — each peer that has a non-expired advertisement mapped to its CapSet. A peer absent from this map has either never advertised or has aged out; it is treated as CapSet.EMPTY for eligibility.

Snapshot semantics; every peer computes the same map once the capability board converges, which is why the eligible subset is bit-identical across peers (design §14.6).