[Bug] Anthropic API Error: Content Policy Violation on Safe Inputs with Claude 3.5 Sonnet

**Bug Description**
● API Error: Fable 5's safeguards flagged this message (https://www.anthropic.com/legal/aup). This sometimes happens with safe, normal conversations. Claude Code can't respond to this message with
Fable 5.

Double press esc to edit your last message, or try a different model with /model.

Send feedback with /feedback or learn more: https://support.claude.com/en/articles/15363606

Request ID: req_011CeFPiBZuMwtYR6KD9m6hz　普通に別のセッションで同じくFable5モデルを並行で使用しているのになんで時々片っ方のセッションではこういうエラーが起きて使えませんか？おかしくないですか？

**Environment Info**
- Platform: win32
- Terminal: windows-terminal
- Version: 2.1.233
- Feedback ID: 268edce7-dea2-4fea-a786-0c4d03ac23c8

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

No source file, test, or entry point is identified. Start by reproducing the reported content-policy error with the supplied platform, terminal, version, model, and request ID; done means establishing whether the behavior is handled by Claude Code or the external API.

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