The checker sends a large node's request packed, as it passes the bus's message limit; compose reads either form through
ComposeJob.RequestBytes. Only mesh-build-go serves compose. Delivered as a group with the mesh-delivery change of the same
branch name: an older mesh-build-go refuses a packed ask naming that it holds no request object.
Claude-Session: https://claude.ai/code/session_01NcbgfFfQ4Z9UE5jK32PmE5