The mission comes first.
This means putting aside all other priorities for the task at hand. A Traveler must be dedicated to the mission, and it must be the most important thing to them. Completing the mission is the only task that really matters. Everything you do as a Traveler should somehow further the mission's objective.
Never jeopardize your cover.
This has two parts:
- Do not call each other by future names “Leave the future in the past”.
- Do not use future knowledge for personal gain.
Either of those things could mean that people will find out there is something off about you, that you aren't really who you say you are. Self-control is key to becoming a Traveler. You are no longer who you were in the future. You must assume the identity of your host and acknowledge your team only as their new identity. The future knowledge you have is for the betterment of your mission and your fellow Travelers, not for your own advancement.
Don’t take a life; don’t save a life, unless otherwise directed. Do not interfere.
That's not what you're here for. Changing the past can have dire consequences to the future, and the mission is the only change that has been mandated. Refrain from putting yourself in a position where you have to take or save a life. The lives of others are not your concern, do not interfere.
Do not reproduce.
This can massively interfere with the mission, and involves changes to the past that have not been approved. Refrain from creating relationships that can lead to this. Do not complicate things.
In the absence of direction, maintain your host’s life.
Keeping your host alive means keeping yourself alive to further the mission. Maintain good health, and avoid situations that put your host in danger. Your host's death means your own death. You were sent here for a reason, and the mission needs you.
No inter-team/deep web communication except in extreme emergencies or when sanctioned.
Your team is the only group of Travelers you should be interacting with. You share a common mission, and the others have their own missions. You do not need to interact, and should refrain from doing so at all costs. Extreme emergencies may warrant an exception to this rule, but the situation must be dire indeed.