Under the hood
MCP auth-helper subprocess now runs with an explicit working directory when one is set
What
When Claude Code saves the results of an MCP (Model Context Protocol, a way of connecting external tools) task, it runs an internal proxyAuthHelper subprocess to handle authentication. That subprocess now runs with an explicit working directory (cwd) when one is available, instead of always using the default.
Why
Setting the working directory explicitly makes the auth-helper subprocess behave consistently regardless of what directory it happens to be launched from, which matters when Claude Code needs it to resolve paths correctly.