[BUG] CLI display broken in PhpStorm 2025.3.2 - misaligned lines

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 CLI interface in PhpStorm 2024.3 terminal displays with misaligned lines, making it difficult to read and interact with Claude Code. The text output appears shifted or incorrectly positioned, breaking the visual layout of the interface.

This issue appeared suddenly today (2026-01-27) after working correctly before.

What Should Happen?

The CLI interface should display correctly with proper line alignment and formatting in the PhpStorm terminal, similar to how it displays in other terminal emulators.

Error Messages/Logs

No specific error messages - this is a visual rendering issue affecting the terminal output formatting.

Steps to Reproduce

1. Open PhpStorm 2024.3
2. Open the built-in terminal (Tools → Terminal)
3. Launch Claude Code CLI
4. Observe the misaligned lines in the interface output

The terminal is using xterm-256color as TERM value.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Unknown - issue appeared today (2026-01-27)

Claude Code Version

Latest

Platform

Anthropic API

Operating System

Other Linux

Terminal/Shell

PyCharm terminal

Additional Information

Environment Details:

• PhpStorm version: 2024.3
• OS: Linux 6.14.0-123037-tuxedo
• TERM: xterm-256color
• Issue appeared: 2026-01-27 (today)

Screenshot: Will be attached in follow-up comment

The issue seems specific to PhpStorm's terminal emulator, as the terminal type and configuration haven't changed recently.