No [CUS: Transposition - ...] beat exists anywhere in CLEAN GROUND. The house mission structure requires a Transposition roll per agent on the return (tools/mission.mjs:343), which is where the instinct came from, but this scenario's crossing is a standing open door rather than an aimed one. The 63 appears at 1011 and 1479 and both are characterisation, never a roll. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>