[BUG] Missing vocative comma in "Welcome back" greeting

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

The greeting message says "Welcome back Greg!" but should include a direct address (vocative) comma: "Welcome back, Greg!"

What Should Happen?

The greeting should include a direct address (vocative) comma before the name of the person being addressed.

Error Messages/Logs

Steps to Reproduce

1. Start claude on the command line
2. Read the welcome message

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.37

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

1. An English degree