KitaruMemoryArtifactUnavailableError

Raised when a memory entry points to a value artifact that cannot be loaded.

The memory metadata exists and was fetched successfully, but the backing artifact value cannot be materialized from the current runtime (for example, a memory entry written on a local stack whose artifact URI is not reachable from the current Kubernetes stack). Callers opting into strict mode on the memory read path can catch this specifically while broader KitaruBackendError handling keeps working.