[BUG] Terminal Freezes on Paste - Works If I don't paste the 1st word or the last word.

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?

Claude Code 2.1.63 completely freezes on paste - MacOS latest release on Cursor 2.5.26, when I paste:
`Not fully. I agree with the intent, but I see a few issues in README.md:

1. [MEDIUM] “Script Inventory” is misleadingly incomplete

The table lists 2 scripts, but the directory contains many more. If this is meant as “all scripts,” it’s incorrect and can mislead
operators.
Evidence: README.md:74

1. [LOW] The “hangs silently” explanation is overstated/inaccurate

Missing PYTHONPATH can definitely break imports, but claiming it causes asyncio to “hang silently” is too absolute and not generally
true.
Evidence: README.md:41

1. [LOW] Prod command pattern can leak secrets in shell history

Inline DATABASE_URL_ASYNC="...<password>..." is operationally risky unless users are explicitly told to use a safer secret-injection
method.
Evidence: README.md:23

What I do agree with:

• docker exec -w /app -e PYTHONPATH=/app ... is a solid execution pattern for these scripts.
• Keeping these scripts outside startup/Alembic is appropriate for one-off ops.`

What Should Happen?

Claude Code shouldn't freeze when pasting this into the terminal. It allows paste without the 1st word or the last word but if I send the whole thing it locks up the terminal.

Error Messages/Logs

No errors, completely freezes.

Steps to Reproduce

Paste the entire snippet and see if it freezes. For me, it doesn't freeze when I remove the 1st word or the last word but it does with the whole thing.

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.63

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Cursor

Additional Information

_No response_