I just tried it. It does not support /ide integration. You can test this by typing /ide in claude code. MCP support is not the same thing as IDE support.
Oh you mean something like active file awareness and selection context? This code seems quite well architected and has websockets well integrated, both features sound like a lunch break’s worth of work if you file a ticket. Other than that, I couldn’t care less about how these capabilities are implemented or whether /ide works.