Rewind freezes terminal completely on macOS arm64 — must force-quit (v2.1.119)

Summary

Triggering rewind — either via the double-Esc shortcut or the /rewind slash command — causes the entire terminal to become unresponsive. Keyboard input is ignored, Ctrl+C does not interrupt, and the only recovery is force-quitting the terminal application. No error message is displayed before or during the freeze.

Environment (verified)

• Claude Code: 2.1.119 (native Mach-O 64-bit arm64 build, installed via claude.ai/install.sh)
• macOS: 26.3.1 (build 25D771280a)
• Hardware: Apple Silicon (arm64)
• Terminal: Ghostty 1.3.1
• TERM: xterm-256color

Steps to reproduce

1. Launch claude in any project directory.
2. Send any prompt and receive a response (so there is at least one turn to rewind).
3. Either press Esc twice, or type /rewind and submit.
4. Terminal freezes immediately.

Expected

Rewind UI opens and lets the user select a previous turn.

Actual

• Terminal stops responding to all input.
• Ctrl+C, Ctrl+D, typing — nothing works.
• Only recovery: kill the terminal window/process.
• No stderr output, no log entry, no spinner — just silent freeze.

Scope

• Reproduces on every project, including a brand-new session with a 72KB .jsonl (so session size is not the cause).
• Reproduces immediately after a clean reinstall of Claude Code (binary wiped from ~/.local/share/claude/versions/ and reinstalled via the official claude.ai/install.sh). Reinstall did not change behavior.
• Has persisted across multiple updates over the past month+.

Related closed/open issues

• #31976 (closed "not planned") — rewind soft-lock
• #4805 — Esc key terminal freeze (P0)
• #4851 — rewind lag
• #9803 — double-Esc not triggering on M1

This report is filed because rewind is a flagship feature that is currently 100% unusable for this configuration, and #31976 was closed without a fix.

Not validated

• Exact freeze duration (user did not wait — terminal was killed).
• Whether earlier Claude Code versions exhibited the same behavior on this exact macOS/Ghostty combo.