In modern AI-assisted coding, allows a coding agent (like Claude Code) to make decisions and execute actions on your behalf to complete longer tasks with fewer interruptions [26].

In CNC machining, an ATC swaps cutting tools into the spindle to automate complex jobs [14].

Drive Index : Identifies which drive in a multi-drive library is being used, typically starting at 0 [5.16].

Keep the tool change position as close to the workpiece as possible to minimize travel distance [14].

For API users, you can use task budgets to control token spend during these long, automated runs [26]. 2. Backup Systems: Tape Autochangers