<h2>What's changed</h2> <ul> <li>Added <code>CLAUDE_CODE_AUTO_MODE_MODEL</code> to choose the model the client-side auto mode classifier uses; it does not change the model for server-side auto mode</li> <li>Added an <code>Idle compaction</code> row to <code>/config</code> for turning idle compaction off or back on; the notices shown after an idle compaction now say how to turn it off</li> <li>Added a notice to <code>/design-sync</code> and <code>/design-login</code> that standalone Claude Design (claude.ai/design) closes by December 14, 2026</li> <li>Fixed a "Prompt is too long" error when sto