概要
The xcall skill enables Claude to interact directly with macOS applications that lack a native command-line interface but support the x-callback-url protocol. By utilizing a Swift-based helper compiled into a lightweight macOS app, it allows Claude to send commands to GUI applications and receive structured data—such as task IDs, note identifiers, or success confirmations—back into the terminal session. This bridge allows for complex workflow automation where Claude can manage your personal productivity stack as part of your development process.