[Bug] Claude Code resets working directory from git worktree to main repository

Bug Description

Summary

Claude Code unexpectedly resets the working directory from a git worktree to the main repository directory between conversation turns, requiring users to manually correct the context.

Steps to Reproduce

1. Have a git repository with worktrees (e.g., .worktrees/42-issue)
2. Start Claude Code session in the main repository
3. Tell Claude to switch the working dir
4. Create and accept a plan

Expected Behavior

Claude Code should maintain awareness of which worktree the user is working in and continue operating on files in that worktree.

Actual Behavior

Claude Code reads from the main repo instead of the worktree.

Environment

• Platform: Linux 6.12.64-1-MANJARO
• Model: claude-opus-4-5-20251101
• Git worktrees: Multiple active worktrees

Impact

• Confusion when file contents don't match expectations
• Risk of editing wrong files in wrong branches
• Wasted time correcting Claude's contex

Environment Info

• Platform: linux
• Terminal: alacritty
• Version: 2.1.15
• Feedback ID: 4db6ec73-543a-4aa0-9bce-3ec166ceda7b

Errors

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