Component under test: the 160px rail below-left (dashed boundary, “160 × vh” tag). Legend lives here, not in the component: ● row = episode (violet = delegate, blue = steering/jobs, orange ▲ = watch, red ▪ = failure cascade, purple = fold) · pulsing = in flight · left-edge brackets = non-adjacent causality (red = caused failure, teal = reported, blue = steered, green = gate) · right-edge mercury = context pressure (purple nicks = folds) · rows compress to slivers behind each fold — the rail literally compacts · bottom = now · whole left border glows red while a runaway/cascade is active. ◆ green U-rows = user prompts (U1 goal … U7) — they never compress or scroll away; click one to jump the transcript to that exact prompt (try U5 once it appears — mid-cascade steering).