# G49 -- Validate the target list; an empty tier terminates the pipeline

Every target passes a validity gate before a wave (real function boundary, assembly on disk, inside the binary's range, not
already banked); in any cascade a tier that cannot act ends the chain rather than passing its emptiness downstream.
provenance: BFM accelerator A9; 87 of 119 agents spent proving phantoms absent, one at the most expensive tier