[Bug] Anthropic API Error: Cybersecurity safeguard incorrectly blocking checkpoint-restore code comments

Bug Description
The Claude API error (cybersecurity) is broken. DMTCP is an open-source project, for 15 years at github, and over 150 academic papers pointing to it. DMTCP does checkpoint-restore. In this case, Claude had made an erroneous comment about how the %fs register is restored. (In checkpoint-restore, we must restore all CPU registers, _including_ the %fs register.)

I told Claude that its comment was incorrect, and Claude should rewrite the comment according to my loose description. Claude then replied that it can't rewrite the comment using my own words because:

"API Error: Sonnet 5's safeguards flagged this message. ... cybersecurity ..."

Claude says I can apply to the Cyber Verification Program to allow Claude to do checkpoint-restore. Claude is lying. When I tried that earlier, Claude's web page crashed.

Here is the github site for DMTCP:
https://github.com/dmtcp/dmtcp

Here are over 150 refereed academic publications (_not_ on cybersecurity) describing how they use DMTCP:
https://dmtcp.sourceforge.io/publications.html

If Claude is truly not allowed to discuss the %fs register of x86_64, please document that users should never ask Claude to look at the %fs register -- only the other CPU registers!

I suggest allowing Anthropic employees to talk to developers. Apparently, from what I can see, they are not currently allowed to talk to developers like me. If Claude Code continues to be this buggy, then my next step might have to be to add a boldface message on the DMTCP github site, to warn its users:
Claude Code considers DMTCP to be a project using cybersecurity. This is ABSOLUTELY not true. If you use DMTCP for a while, with Claude Code, it might eventually poison your whole session and accuse you of doing cybersecurity. We have been unsuccessful in trying to reach a human being at Anthropic. When trying to use Anthropic's web page for "Cyber Verification Program", it crashes on us. If anybody sees this and knows an employee of Anthropic, please ask them to discuss this with us developers.

Environment Info

• Platform: linux
• Terminal: wsl-Ubuntu-24.04
• Version: 2.1.223
• Feedback ID: 1b348a1e-8611-41ba-a92c-681a3f2cf402

Errors

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