Git Worktrees broken since v1.19367.0 (MacOS)

Bug Report

From Changelog:

  • Added descriptive branch names for local Code sessions, derived from your first message, in place of the random adjective-noun names.

Starting a session creates a new branch and checks it out immediately (already stupid), but then it does not create a worktree via git worktree add against the created branch, resulting in an empty folder with just a .claude and local settings copied. The agent can't work like this and parallel workflows are broken. They just create a branch and check it out.

I generated a workaround script, easily enough, but this is not optimal and it annoys me to high heaven.

This is such a basic thing, how can they fuck this up? My confidence in Anthropic is not high, especially when I see stuff like this. Not as bad as codex, but it baffles the mind.

Can you confirm?

Posted Jul 13, 2026, 10:41 AM UTC

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