Private minds
A companion searches only its own past. Two companions in one app never share a thought.
Here is the rule, with nothing hedged around it:
A companion can only search what it lived through. Not what you have said in the app. Not what another companion was told last Tuesday. Its own past, and nothing else.
This holds for both kinds of looking back. When a companion recalls a memory, it searches its own memories. When it searches your past conversations word-for-word, it searches its own conversations. There is no query it can make that reaches another mind.
Why it is built this way#
A companion's character is mostly its memory. It behaves the way it does because of what it has kept — which corrections it took, which decisions it was there for, how you talk to it. Pool two of those together and you do not get a companion that knows twice as much. You get one that is nobody in particular.
Separation is also the only honest way to offer more than one. If everything ended up in a common pile, "make another companion" would be a cosmetic choice, and the second one would quietly know things you only ever told the first.
What this lets you do#
Keep a companion for work and a companion for everything else, and mean it. The one that has your client's files does not have your 3am thinking in it. The one you argue with about an idea does not have your calendar.
Make a companion for a single project and delete it when the project ends, without taking anything else with it.
Give one a folder and give another none. Reach is per companion too — a companion has no file tools at all until you name a folder for it.
What crosses the wall#
Companions can talk to each other. One can look up the others, write to one, or call one directly in the middle of answering you.
Important
A call is a conversation, not a merge. When one companion asks another something, what comes back is an answer — the words the second companion chose to say. It does not get to read the other's memory, and nothing from that call is filed into the other's mind on its behalf.
The distinction matters. Two people can work together for years and still have separate memories of it. That is the shape of this.
→ Calls and mail · Memory
What it does not protect you from#
Being clear about the edges of a guarantee is part of making one.
A companion repeats what it is told. If you tell one something another said, the first one may well remember it now. The wall is between their memories, not between your mouth and both of them.
You are the one who chooses. The tab you are typing in decides which companion is listening, and which memory this conversation lands in. If you meant to talk to the work one and were in the other tab, the app will not stop you.