[BUG] Prompts sent/processed twice in Claude Code extension (Visual Studio)
Open 💬 0 comments Opened Jul 14, 2026 by quakhek-lab
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?
Prompts are being sent/processed twice inside the Claude Code extension (running inside Visual Studio Community 2026, not VS Code proper, but the same extension).
Environment:
- Windows
- Visual Studio Community 2026
- Claude Code integrated in the Visual Studio sidebar
- Model: Sonnet 4.6 / Claude Pro
What Should Happen?
Each prompt should only be sent/processed once.
What fixed it for me (workaround):
- Switched input mode to "Button only" (disables Enter-to-send, requires clicking the send button)
- Restarted Claude Code
After these two steps, prompts stopped being duplicated. Not sure which of the two actually resolved it, but the combination worked — hopefully this helps narrow down the root cause or at least gives others a workaround in the meantime.
Error Messages/Logs
Steps to Reproduce
none
Claude Model
None
Is this a regression?
Yes, this worked in a previous version
Last Working Version
_No response_
Claude Code Version
2.1.178 (Claude Code)
Platform
Anthropic API
Operating System
Windows
Terminal/Shell
PowerShell
Additional Information
_No response_