Operating System Commands (OSC)

Operating System Command (OSC) sequences use the ESC ] format for out-of-band communication between applications and the terminal. Common OSC sequences set the window title (OSC 0/2), manipulate the clipboard (OSC 52), define hyperlinks (OSC 8), and mark semantic prompt regions (OSC 133). The OSC namespace is open-ended, allowing terminals to define new sequences without conflicting with CSI-based control codes.

3 features in this category

Support Matrix

Feature	Ghostty	WezTerm	Alacritty	vt100	xterm.js	Kitty
Hyperlinks (OSC 8)	✓	✓	✓	✗	✓	✓
Window title (OSC 2)	✗	✓	✓	✓	✓	✗
Semantic prompts (OSC 133)	✓	✓	✗	✗	✗	✗

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