VS Code

vscode:// opens files, projects, and settings. Extensions can register their own handlers under vscode://{publisher}.{extension}/, which is how most of the interesting links here exist at all — including Claude Code's editor tab and the one-click MCP install.

Insiders builds use a different scheme entirely: vscode-insiders://. A link that works on your machine will do nothing on a colleague's if they run Insiders and you do not. Nothing tells you; it just fails.

Paths are absolute, and on Windows they include the drive letter.