[BUG] All models above Haiku are blocking requests to discuss gameplay of a genetics video game

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?

I'm playing a PC video game called Creatura where I get to sequence genomes for virtual plants and try to figure out what genotype changes influence phenotypical changes in my virtual plants. I'm using Claude to theories I have, look at patterns in the data with me, and since yesterday, everything above Haiku has refused to discuss my video game with me, saying "API Error: Claude Code is unable to respond to this request, which appears to violate our Usage Policy (https://www.anthropic.com/legal/aup). Try rephrasing the request in a new session or change your model."

When I ask Haiku about it, it says something like "I don't have visibility into why Sonnet blocked those requests — I can't see what got flagged or why, since that happened in a separate model instance before the switch. My best guess is an overzealous automated filter producing a false positive; genetics discussion in a game context like this isn't something that should trip a policy violation, and nothing in what we've discussed reads as sensitive to me."

What Should Happen?

Nothing I've done has violated any policy, and should not be blocked.

Error Messages/Logs

API Error: Claude Code is unable to respond to this request, which appears to violate our Usage Policy (https://www.anthropic.com/legal/aup). Try rephrasing the request in a new session or change your model.

Request ID: req_011CdBqwFRV3wfRe6UmPETHJ

Steps to Reproduce

1. Ask any question or make any statement about my video game.

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.117

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

I'm using the desktop app