Function isMouseTrackingEnabled

src/utils/fullscreen.ts:140–142

()

 * disables alt-screen and virtualized scrollback.
 */
export function isMouseTrackingEnabled(): boolean {
  return !isEnvTruthy(process.env.CLAUDE_CODE_DISABLE_MOUSE)
}

/**
 * Whether mouse click handling is disabled (clicks/drags ignored, wheel still