Todo List Feature Flag System

What changed: TodoWrite tool now controlled by runtime feature flag instead of hardcoded visibility Previous behavior: TodoWrite had hardcoded visibility conditions New behavior: Todo list visibility controlled by todoFeatureEnabled feature flag (defaults to disabled) Implementation: Tool inclusion controlled by dynamic feature flag system rather than hardcoded conditions Impact:

• Todos become opt-in feature rather than always-on
• Tool functionality remains fully implemented but filtered out at runtime by default
• Users must explicitly enable todo feature to see todo list management
• Creates configurable task management system
• Todos still persist to disk and function when enabled