- Pin the play header (Plot/Memory/Scripts/Insights toggles) just below the top nav so they stay reachable without scrolling back up to the first message. - Fix streaming autoscroll: snap to the real document bottom instantly instead of smooth-scrolling to storyEndRef. That ref sits above the sticky composer, so block:'end' stopped short — hiding the latest line behind the input bar and yanking the reader back up when they scrolled down. Smooth behavior also never settled at per-token speed. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TEpWMjnfPqzZ13nPMoGhs5