Chronos is not liable for accidental deletion of one's own grandparents. Comprehensive paradox insurance is available for an additional fee.
Any deliberate alteration of major historical events (e.g., stopping assassinations, giving modern tech to historical figures) will result in immediate extraction and banishment to the void.
By initializing a jump, you agree that you are entering the timeline at your own risk. Time lag and minor cellular destabilization are normal.