[BUG] VSCode extension 2.1.129 command 'claude-vscode.editor.openLast' not found

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?

The Claude Code VS Code extension fails to activate on Windows v2.1.129. The extension bundle contains a hardcoded Linux CI path that is invalid on Windows, so no commands are registered. Clicking any Claude button or running any Claude command produces: "command 'claude-vscode.editor.openLast' not found"

What Should Happen?

The extension should activate successfully and Claude chat should open when clicking the Claude button or running commands from the Command Palette.

Error Messages/Logs

2026-05-06 09:39:38.261 [error] Activating extension Anthropic.claude-code failed due to an error:
TypeError: The argument 'filename' must be a file URL object, file URL string, or absolute path string. Received 'file:///home/runner/work/claude-cli-internal/claude-cli-internal/build-agent-sdk/sdk.mjs'
    at Module.createRequire (node:internal/modules/cjs/loader:1922:13)
    at Object.<anonymous> (c:\Users\denis\.vscode\extensions\anthropic.claude-code-2.1.129-win32-x64\extension.js:102:5407)

Steps to Reproduce

1. Install Claude Code CLI: npm install -g @anthropic-ai/claude-code (v2.1.129)
2. Install Claude Code VS Code extension v2.1.129 (anthropic.claude-code-2.1.129-win32-x64)
3. Open VS Code on Windows
4. Wait for extension to activate (onStartupFinished)
5. Click the Claude button in the sidebar or run any Claude command via Ctrl+Shift+P
6. Observe error: "command 'claude-vscode.editor.openLast' not found"
7. Check Extension Host logs, extension fails to activate with the Linux path error above

Environment: Windows 11, Node.js v22.22.0, VS Code latest

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.128

Claude Code Version

2.1.129 (Claude Code)

Platform

Other

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_