Previously, the condition '&&plannerEnabled&&replacePlan' caused agents to be completely removed instead of demoted to subagent mode. The logic incorrectly prevented agents from being added back as subagents when Sisyphus is enabled with default config. Fixed by simplifying to just 'replacePlan' condition - agents are now properly demoted to subagent mode when replacement is enabled, which is the intended behavior per the README. 🤖 Generated with assistance of [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)