Claude Graft 1.0.7
Opening a Claude you already had open started a second one.
Not a second window — a second Claude, on the same profile, reading and writing the same chat files. Claude Desktop doesn't refuse that, and Graft was asking for a brand new copy every time. This is the worst version of the thing Graft warns you about elsewhere: not two accounts sharing chats, but one profile's own files being written over twice.
Now it brings the Claude that's already there to the front, the way clicking a Dock icon does. If you'd closed its window and left it in the menu bar, the window comes back.
Opening your main Claude works properly too. With any shortcut running, asking macOS to open Claude got you whichever copy had started first — which was the shortcut, not your main account. That's fixed as well, and the warning about shared chats no longer interrupts you when nothing new is actually being opened.
Shortcuts you already have are updated automatically the first time Graft starts after this version arrives. Existing copies update themselves within the hour.