[Bug] Input field does not word-wrap — text extends beyond terminal width

Bug Description

The text input field in Claude Code CLI does not word-wrap at the terminal width. As you type a long message, text extends past the right edge of the screen and becomes invisible. There is no visual indication of where you are in the text.

This was previously reported in #9207 (Jan 2026, macOS) and #23243 (Feb 2026, plan mode). Both were auto-closed without resolution. The bug persists on Linux/WSL2 with the latest version.

Expected behavior

Text input should wrap at the terminal width, like every other CLI tool (bash, vim, nano, etc.).

Actual behavior

Text extends past the right terminal edge. No wrapping, no scrolling indicator. For long messages you're typing blind.

Environment

• Version: 2.1.63
• Platform: linux (WSL2 Kali Rolling)
• Terminal: Windows Terminal 1.x
• Terminal width: 194 columns
• Shell: bash

Related issues

• #9207 — same bug on macOS (auto-closed)
• #23243 — same bug in plan mode (closed as duplicate)