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A page larger than memory allows is now windowed instead of cut: one pass over its file (cache or Saved Page) counts lines, indexes every 64th (offset, and the preformatted state there in bit 31: about 1 KB for a 1 MB page) and loads the first window. Scrolling near either end reads the next or previous window on the Gemini task; the line on top of the screen stays put, the scrollbar follows the whole page, and Tab at a window's edge pages on instead of wrapping. Window budgets count the memory the old window gives back. Display pages alternate between two cache files so the one on screen is never overwritten by the next fetch; jobs use a third. On the device, Cosmos with IRC connected: 226 of 419 lines at first, then lines 192-419, back to 64 and 0 while scrolling. `key space` added to the console's key command. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT