Model, effort, subagents and an agent chat's mode were chips inside the composer, cut off or out of reach with a long model name or every chip on. They are in the chat's header now, beside the Terminal, the activity panel, a Tools and skills button and the menu; a new agent chat's computer and folder sit beside the title (where an open one says where it works), and its Terminal is the header's button as an open chat's is. The composer keeps text, attach, Dictate, Draw a picture and Send/Stop. Where the header has no room -- measured by fitHead on every drawing and resize: the settings cut at their end, or the place squeezed under 10rem -- they fold behind Chat settings, which opens them as a wrapped row under the header. The new chat page shows its header. Tests (tests/ui CI2): the composer holds only the message's controls; at 1920/1280/1024/800/390 px, for a chat and an agent chat with long model names and every chip, every button is inside the window and not clipped by its container, nothing is drawn over another, folded or not, and the model's menu opens; a new agent chat at 1280 and 390. Earlier tests follow the chips' new places. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>