--worktree now gives more actionable errors when workspace trust has not been accepted, when a worktree branch is already checked out elsewhere, or when a stale worktree directory blocks reuse.
Usage
claude --worktree feature-name
Evidence
Worktree diagnostics (search for "Workspace trust not yet accepted. Run \claude\ once in this directory and accept the trust dialog, then retry with --worktree." and "is already checked out in a worktree at")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeImproved error message when --worktree collides with an existing or stale worktree
