[BUG] claude-shell-snapshot-* has a syntax error when using Oh My Zsh

I'm also getting this error, the claude code is executed by creating a bash script.
function in /tmp/claude-shell-snapshot-100f:5552:

repeat () {
    while :
    do
        $@ && return
        sleep 3
    done
}

I get:

/tmp/claude-shell-snapshot-0f57:5552: parse error near `()

!Image

If I type:

 SHELL=/bin/bash claude

to start claude code, try again same query, everything is back to normal.

!Image

If I type: SHELL=/bin/bash claude to start claude code, try again same query, everything is back to normal.

Brilliant! A good workaround. For those using this technique, you'll probably want to add this alias:

alias claude='SHELL=/bin/bash claude'

Thanks for the detailed report. This should be fixable

Thanks guys. This helped me, even though I didn't have the same error message, but it was still due to not using bash.
https://github.com/anthropics/claude-code/issues/2139#issuecomment-2994060105

This happens to me as well, running zsh on Mac, with Oh My Zsh installed. The error frequently (always) seems to be at that repeat () function definition. I wonder if it's conflicting with something setup by OMZ?

Would love to see this fixed, but the workaround helps for now.

fwiw- i see this issue as well, and i don't use Oh My Zsh. i believe this is just a shell incompatibility because Zsh has a shell built-in repeat command, whereas Bash does not.

This is a problem with a zsh plugin, not zsh itself. I have this in my zshrc to prevent claude from loading any zsh plugins or p10k:

is_claude() { [[ -n "${CLAUDECODE}" ]] && return 0 || return 1 }
not_claude() { ! is_claude && return 0 || return 1 }

# We need to be able to define a set of plugins to load for human vs ai users
if not_claude; then
  source ~/.rad-shell/rad-init.zsh
  [[ ! -f ~/.p10k.zsh ]] || source ~/.p10k.zsh
fi

I have noticed no problems with missing tools (they are set up in my zsh plugins) , so presumably claude is using the inherited $PATH from the environment anyway.

Using bash was not ideal for me because there is configuration in my zshrc I want claude to have, and I don't feel like maintaining a basic as well.

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I have this issue, and just use regular bash. I have no idea what the snapshot is supposed to do, so I can't really diagnose, but my errors looked like this:

Successfully activated the macos environment
/Users/adamtaylor/.rvm/rubies/ruby-3.2.2/bin/ruby
/Users/adamtaylor/.tmuxifier/bin/tmuxifier
/Users/adamtaylor/.claude/shell-snapshots/snapshot-bash-1764462593695-n5dfvu.sh: line 271: set: m\^[[01: invalid option name
/Users/adamtaylor/.claude/shell-snapshots/snapshot-bash-1764462593695-n5dfvu.sh: line 271: 31m\^[[Kon\^[[m\^[[Kitor: command not found
/Users/adamtaylor/.claude/shell-snapshots/snapshot-bash-1764462593695-n5dfvu.sh: line 272: set: \^[[01: invalid option name
/Users/adamtaylor/.claude/shell-snapshots/snapshot-bash-1764462593695-n5dfvu.sh: line 272: 31m\^[[Kon\^[[m\^[[Kecmd: command not found

And then when I went to look at the actual snapshot file, it had these options in it:

set -o m^[[01;31m^[[Kon^[[m^[[Kitor
set -o ^[[01;31m^[[Kon^[[m^[[Kecmd

I removed them manually and so far, that's fixed it. Very strange.

EDIT: After a couple days, I've noticed the errors are back. I guess I'm going to try the SHELL fix mentioned above.

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