I need more information about the actual bug or issue you're experiencing with Claude Code to generate an appropriate GitHub issue title. Could you please provide: 1. What error or problem are you encountering? 2. What were you trying to do when it happen

**Bug Description**
this request has nothing to do with cybersecurity

**Environment Info**
- Platform: win32
- Terminal: null
- Version: 2.1.261
- Feedback ID: 8f2985fc-f543-47f7-ad13-5a517b7ab547

**Errors**
```json
[{"error":"TelemetrySafeError: VirtualMessageList: itemKeys/messages length desync (keys=281 messages=280 range=[260,281))\n at mQt (B:/~BUN/root/chunk-bab5vngb.js:36:27375)\n at hhe (B:/~BUN/root/chunk-bab5vngb.js:36:20207)\n at Br (B:/~BUN/root/chunk-3fchm6tx.js:18:20178)\n at zu (B:/~BUN/root/chunk-3fchm6tx.js:18:38344)\n at Ih (B:/~BUN/root/chunk-3fchm6tx.js:18:84425)\n at Wg (B:/~BUN/root/chunk-3fchm6tx.js:18:83425)\n at ic (B:/~BUN/root/chunk-3fchm6tx.js:18:83254)\n at jh (B:/~BUN/root/chunk-3fchm6tx.js:18:79779)\n at qe (B:/~BUN/root/chunk-3fchm6tx.js:18:6261)\n at ke (B:/~BUN/root/chunk-3fchm6tx.js:18:4792)","timestamp":"2026-09-08T20:30:44.955Z"}]
```

Start from the reported error text: `VirtualMessageList: itemKeys/messages length desync` in Claude Code 2.1.261 on win32, and search the codebase for `VirtualMessageList`, `itemKeys`, or the stack symbols if source maps are available. The issue does not include reproduction steps, so a first step is to reproduce or request the action that triggered it. Done means the desync cause is identified and the error no longer occurs for that scenario.

索引モデルが issue の本文から書いたものです。