If anyone here has an issue with their Claude Desktop app seeing the new MCP tools you've added to your computer, restart it fully. Restarting the Claude Desktop app did NOT work for me, I had to do a full OS restart.
Hm, this shouldn't be the case, something Odd is happening here. Normally restarting the app should do it, though on Windows it is easy to think you restarted the app when you really just closed the main window and reopened it (you need to close the app via File => Qui)