[BUG] command 'claude-vscode.editor.openLast' not found on every startup - requires full reinstall to fix

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?

OS: Windows 11, VS Code version: 1.109.5, Claude Code extension version: 2.1.51, Claude Code CLI version: 2.1.51. The extension crashes on every startup with "command 'claude-vscode.editor.openLast' not found". The extension appears in Running Extensions but none of its commands register, so clicking the Claude icon or any Claude command fails.

What Should Happen?

aExtension loads previous session gracefully or starts fresh

Error Messages/Logs

command 'claude-vscode.editor.openLast' not found

Steps to Reproduce

1. Install Claude Code extension and CLI on Windows 11
2. Use Claude Code normally for a day
3. Close VS Code
4. Reopen VS Code next day
5. Error appears immediately

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.51

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_