Development record

2026-10-22 — A drain drives itself only when --drive is given, never because no host was detected (facilitator, on delegation, itd-2610222215485265; revised after review round 1): a terminal inherited from a Claude Code shell carries its environment and a host that runs commands in a terminal sets none, so detection would start a drive by accident or block a host's call on a prompt; --drive is the one way in, abcd drain without it does one move per call as today, and the host's command page always calls it that way (grounds: the Opus and Sonnet reviews of 2026-10-22; brief invariant 16, a control asserts only what it can prove)