Week 24 adds two operational safety valves: fallback chains and safe mode.

You can now set fallbackModel (or --fallback-model, now for interactive sessions too) to a chain of up to three models tried in order when the primary is overloaded (Claude Code Docs). That turns a hard "model overloaded" death into a transparent degrade-and-continue, which matters for cron-driven runs. And --safe-mode launches with all customizations off, CLAUDE.md, skills, plugins, hooks, MCP, custom commands, so you can bisect a broken config in one step instead of disabling things one at a time. Given today's export-ban story, fallback chains just became a resilience feature, not a convenience.