Discover candidates for status without resolving profiles or starting clients.
Optionaltarget: BinaryTargetList the unique deep-operation declarations without probing candidates.
Return the configured default without interpreting it as priority.
List configured candidate identities in canonical provider-ID order.
Select one whole deep-operation family for a parsed target.
OptionalrequestedSelector: stringExplain why a deep operation is unavailable on an unbound target.
Discover and select overlapping deep providers without starting their clients. Registration order never affects selection or caller-visible output.