[BUG] DISABLE_NONESSENTIAL_TRAFFIC silently breaks /usage

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?

Setting CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC to true causes the /usage command to stop working, with a non-specific error:

<img width="884" height="485" alt="Image" src="https://github.com/user-attachments/assets/6b1fc971-f379-4ac3-830b-05af3a7675a6" />

What Should Happen?

Claude Code should at least be explicit about the command being partially non-functional when CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC is true (as it explicitly is about disabling `/feedback).

Ideally, /usage would still function fully, since it was explicitly requested by the user.

Error Messages/Logs

Error: Failed to load usage data

Steps to Reproduce

1. Run CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=true claude
2. Type /usage
3. Navigate to the Usage tab

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.195

Platform

Other

Operating System

macOS

Terminal/Shell

Other

Additional Information

CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC has several undesired or unintended side effects:

• explicitly disables /feedback
• silently removes /web-setup