[Bug] Agent tool intermittently unavailable, requires restart to recover

Status Open
Reported on v2.1.268
Maintainer reply None cached
Activity 0 comments · opened Sep 11, 2026

Bug Description
Very often Agent tool is not available. Restart claude and resume fixes. But WHY???

I also noticed that this most often happens after exiting planning mode (ExitPlanMode) with the option to clear the context.

<img width="988" height="104" alt="Image" src="https://github.com/user-attachments/assets/b511291f-3f6e-4d0a-9338-3d5a38c26ed9" />

Environment Info

  • Platform: win32
  • Terminal: vscode
  • Version: 2.1.268
  • Feedback ID: 8c39c7d3-bbda-40e1-acfb-1a6654c2938d

Errors

[{"error":"TelemetrySafeError: VirtualMessageList: itemKeys/messages length desync (keys=113 messages=112 range=[95,113))\n    at s4t (B:/~BUN/root/chunk-45p7jdjv.js:36:28828)\n    at XSe (B:/~BUN/root/chunk-45p7jdjv.js:36:21633)\n    at Br (B:/~BUN/root/chunk-4sm1dhmy.js:18:20036)\n    at Hu (B:/~BUN/root/chunk-4sm1dhmy.js:18:38202)\n    at qh (B:/~BUN/root/chunk-4sm1dhmy.js:18:84283)\n    at _b (B:/~BUN/root/chunk-4sm1dhmy.js:18:83283)\n    at ec (B:/~BUN/root/chunk-4sm1dhmy.js:18:83112)\n    at Kh (B:/~BUN/root/chunk-4sm1dhmy.js:18:79637)\n    at we (B:/~BUN/root/chunk-4sm1dhmy.js:18:6261)\n    at nt (B:/~BUN/root/chunk-4sm1dhmy.js:18:4792)","timestamp":"2026-09-11T07:20:31.495Z"}]

View original on GitHub ↗