VS Code: File links in chat stop working after closing the file tab

Description

When Claude Code creates or references a file in a chat response, the markdown link auto-opens the file on first click. However, after closing that file tab, clicking the same link again does nothing — the file does not reopen.

Steps to reproduce

1. Ask Claude to create a document (Word, PDF, or any file type)
2. Claude outputs a clickable markdown link to the file in the chat
3. File auto-opens (or opens on first click) — works correctly
4. Close the file tab
5. Click the same link in the chat again
6. Nothing happens — file does not reopen

Expected behaviour

Clicking the link should reopen the file every time, regardless of how many times the tab has been closed and reopened.

Environment

• VS Code extension
• macOS (Darwin 25.3.0)
• Happens with all file types: .docx, .pdf, .sql, etc.