[Bug] Anthropic API Error: Safeguards falsely flagging legitimate game library code

**Bug Description**
I was just trying to code a library for AAA games- the next big thing in rust. Nothing wrong with it. I had previously been working on a cybersecurity tool. I told Claude to focus on Neon (the game lib) and every time it would read a file or run a command "API Error: Opus 5 (1M context)'s safeguards flagged this message (https://www.anthropic.com/legal/aup). Our intentionally broad safeguards allow us to deliver more capabilities faster, but can sometimes flag legitimate coding, cybersecurity, and biology tasks." same thing happened with Claude Fable 5.1 too.

**Environment Info**
- Platform: darwin
- Terminal: ghostty
- Version: 2.1.258
- Feedback ID: 7f8b426a-8805-4454-bada-41224a0fb162

**Errors**
```json
[]
```

Start by reproducing the reported behavior in Claude Code on darwin with the Neon and Fable game-library requests, using feedback ID 7f8b426a-8805-4454-bada-41224a0fb162. Compare the commands or files that trigger the Anthropic API safeguard with legitimate requests; done means the game-library workflow is no longer falsely blocked or the issue has a documented, actionable explanation.

索引モデルが issue の本文から書いたものです。