[BUG] Clickable file links in chat no longer open files (regression in VS Code extension)

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?

What's Wrong?

File links rendered in Claude Code chat (e.g. [file.md](path/to/file.md))
used to open the file directly in the editor when clicked, but no longer work.

Steps to Reproduce

1. Ask Claude to reference a file in the chat
2. Claude outputs a markdown link like [README.md](README.md)
3. Click the link → nothing happens

Expected Behavior

Clicking a file link in the chat opens the file in VS Code editor.

Actual Behavior

Nothing happens. No error shown.

Environment

• Claude Code VS Code extension: 2.1.132 (darwin-arm64)
• VS Code: 1.119.0
• OS: macOS

Notes

• Was working in a previous version (regression)
• Tried both relative paths and absolute paths — neither works
• Files are confirmed to be inside the workspace

What Should Happen?

Clicking a file link output by Claude in the chat panel should open that file directly in the VS Code editor, as it did in previous versions of the extension.

Error Messages/Logs

Steps to Reproduce

1. Open Claude Code in VS Code
2. Ask Claude to reference any file in the workspace
3. Claude outputs a markdown link like [README.md](README.md) in the chat
4. Click the link
5. Nothing happens — file does not open in editor

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.0.132 (Claude Code), VS Code 1.119.0

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_