Imagination pass (imagination-aeth-fauna, self-2026-10-13-ag2). Target: fauna are
simulated props seen through the one gain rule, each class with a legible motion
law (ruling disguise-held-by-flying). Map: body facts B1-B14 with a cost probe on
Yggdrasil, nine draft questions, first cut fauna-krill-swarms as a draft spec,
later cuts one line each. Docs only.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>