[BUG] Permission prompt defaults to "Always allow" instead of "Allow once" - dangerous UX regression

Preflight Checklist

• [ ] 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?

I have searched [existing issues](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug) and this hasn't been reported yet
This has been reported but was closed for being stale. Reopening in a new ticket.

The most recent upgrade to Claude Code regressed on https://github.com/anthropics/claude-code/issues/48550 which was auto closed for inactivity. I cannot allow claude to start running python whenever it wants.

The permission prompt in Claude Code Desktop now defaults to "Always allow" instead of "Allow once". Users reflexively pressing Enter silently grant permanent permissions they never intended to give.

Claude 2.37337.1 (ba51ab) 2026-10-13T14:04:25.000Z

Permission prompt changed:

• Primary button = "Always allow" (⇧⌘↵)
• "Allow once" now behind a dropdown chevron
• Same regression as #48550 / #48409, both auto-closed as stale, never fixed

What Should Happen?

Clear Regression, Allow once shouldn't be multiple clicks and shouldn't be hidden in a menu for high risk commands especially.

• Approving one command is the common case. Now it needs 2 clicks or a memorized shortcut
• Muscle-memory click on the big button silently saves a permanent allow rule
• Unsafe default for DB / external commands

Error Messages/Logs

Steps to Reproduce

Ask claude to run something like python3 -I -c "print('hello')" with no previous allowlist settings around running python. Or choose another bash command for which you don't have settings.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.31226.1 (my previous version, not necessarily the last good version).

Claude Code Version

2.37337.1

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

<img width="588" height="269" alt="Image" src="https://github.com/user-attachments/assets/265f020a-d562-40fb-a29a-37fc40528ac1" />

<img width="605" height="305" alt="Image" src="https://github.com/user-attachments/assets/7e634852-e86d-4616-9c19-5d09bdd0ff02" />