[BUG] Keyboard input shows raw focus event sequences (^[[O^[[I) in TUI menus on macOS

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?

When pressing any key inside a Claude Code TUI menu (e.g. the memory menu),
keystrokes are not processed. Instead, raw terminal focus event sequences
^[[O^[[I appear as literal text in the menu, making keyboard navigation
impossible.

## Steps to Reproduce

1. Open Claude Code in any terminal
2. Trigger a TUI menu (e.g. /memory)
3. Press any key to select an option

## Expected Behavior

The keypress selects the corresponding menu option.

## Actual Behavior

The input is not processed. Instead, ^[[O^[[I^[[O^[[I appears as
literal text in the menu display.

## Environment

• OS: macOS Darwin 25.4.0
• Terminals affected: VSCode integrated terminal, iTerm2
• Keyboard input works normally outside of Claude Code (e.g. TextEdit,

other CLI tools)

## Workaround

None for keyboard navigation. Mouse clicks work if the terminal supports
mouse input.

What Should Happen?

Claude code should accept keyboard input in command mode.

## Expected Behavior

The keypress selects the corresponding menu option.

## Actual Behavior

The input is not processed. Instead, ^[[O^[[I^[[O^[[I appears as
literal text in the menu display.

## Environment

• OS: macOS Darwin 25.4.0
• Terminals affected: VSCode integrated terminal, iTerm2
• Keyboard input works normally outside of Claude Code (e.g. TextEdit,

other CLI tools)

## Workaround

None for keyboard navigation. Mouse clicks work if the terminal supports
mouse input.

Error Messages/Logs

Steps to Reproduce

1. Open Claude Code in any terminal
2. Trigger a TUI menu (e.g. /memory)
3. Press any key to select an option

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.126

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_