A Ritual Chamber silver-gelatin production still, 4:5 portrait: a black-glass diagnostic console is venerated in a near-empty teal institute chamber, resting on a physical hexagonal floor lattice. Its screen displays pale trace strips and three sealed skill cartridges; signal cyan #38bdf8 appears only as a short band of cold monitor tubes behind it. A gloved technician’s back is half lost in deep shadow, holding a paper receipt to a small context-leak gauge. Large interlocking cream-and-dark institute tile on the rear wall; hard directional key, clear analogue tube-amp warmth. Numbered callouts indicate trace drawer, skill fossil, and delivery meter. One chair faces the wall, quietly wrong. Bureau seal struck once lower right. No caption text. Output in exactly 1122 x 1402 px, 4:5 portrait ratio.