Plan Mode Infrastructure

What: New persistent plan file storage system for task planning workflows, allowing Claude Code to save, retrieve, and track acceptance of execution plans.

Details:

• eO() retrieves the plans directory path
• pm() generates plan file paths for specific agents
• sx() reads plan file contents
• BnA() checks if a plan has been accepted
• INQ() and Zy6() manage plan file creation and updates
• WNQ() and ETQ() handle tool name overrides in plan context
• Plan files persist across sessions for continuity
• Evidence: eO(), pm(), sx(), BnA(), INQ(), Zy6() functions added for plan file management