Asked -seats, it reads every seat definition the heads carry, resolves the parts it includes and answers the list with what it left out and why, so the running checker hands the manifest validator and the composer a list it does not read itself (ADR 0636 §4, ADR 0644 §1). Claude-Session: https://claude.ai/code/session_01NcbgfFSnn24M3GcqttoU7i