[BUG] Failed to install Ghostty Shift+Enter key binding

Environment

• Platform: [x] Anthropic API
• Claude CLI version: <!-- output of claude --version -->

❯ claude --version
1.0.88 (Claude Code)

• Operating System: MacOS 15.6
• Terminal: Ghostty 1.1.3

Bug Description

On Ghostty, the /terminal-setup command crashes with a unresolved promise Failed to install Ghostty Shift+Enter key binding:

❯ claude
╭───────────────────────────────────────────────────╮
│ ✻ Welcome to Claude Code!                         │
│                                                   │
│   /help for help, /status for your current setup  │
│                                                   │
│   cwd: /Users/jpmcb/.config/nvim                  │
╰───────────────────────────────────────────────────╯

╭───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ >                                                                                                                                                                                         │
╰───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
  ? for shortcuts
file:///Users/jpmcb/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:826
`,T1().writeFileSync(G,W,{encoding:"utf-8",flush:!1}),`${AQ("success",A)("Installed Ghostty Shift+Enter key binding")}${UG}${AQ("success",A)("You may need to restart Ghostty for changes to take effect")}${UG}${Z0.dim(`See ${G}`)}${UG}`}catch(Y){throw N1(Y instanceof Error?Y:new Error(String(Y))),new Error("Failed to install Ghostty Shift+Enter key binding")}}async function k06(A){let B=ER1();try{if(!await jT2())throw new Error("Failed to create backup of iTerm2 preferences, bailing out");let{code:Z}=await Z2("defaults",["write","com.googlecode.iterm2","GlobalKeyMap","-dict-add","0xd-0x20000-0x24",`<dict>
                                                                                                                                                                                                                                                                                                         ^

Error: Failed to install Ghostty Shift+Enter key binding
    at j06 (file:///Users/jpmcb/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:826:298)
    at LY0 (file:///Users/jpmcb/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:821:11990)
    at Object.call (file:///Users/jpmcb/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:821:11484)
    at file:///Users/jpmcb/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3064:353
    at new Promise (<anonymous>)
    at Jq5 (file:///Users/jpmcb/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3064:333)
    at Yq5 (file:///Users/jpmcb/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3058:3840)
    at Zq5 (file:///Users/jpmcb/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3058:1615)
    at P01 (file:///Users/jpmcb/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3058:5366)
    at file:///Users/jpmcb/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3427:30089

Node.js v22.14.0

Steps to Reproduce

1. Use Ghostty
2. Initiate claude and run /terminal-setup
3. See error

I get this every time I try to run that command.