You and a partner
Two adults, one home, and the things one of you always ends up remembering.
Bin night is Tuesday. Recycling on even weeks.
Set by Sam (Owner) · 3 Oct 2026
Members join free, so your partner doesn’t need a plan of their own.
Leave the house rules once
House rules are your standing instructions — how things are done, who decides, who to call — written once into a JustOnce space you share with the people you choose — on Plus or Pro, and members join free. Owners and editors write a space’s rules and key facts. Each member’s own Claude picks them up when a new chat starts, credited: “Set by Sam (Owner) · 3 Oct 2026”.
Rules are guidance for that space’s matters, never permission: they can’t share, forget, invite or upload anything for anyone.
Sam & Jo · 2 members
Rules and key facts
Bin night is Tuesday.
Set by Sam (Owner) · 3 Oct 2026
Recycling on even weeks.
Set by Sam (Owner) · 3 Oct 2026
Jo’s new chat
Which bins go out tonight?
It’s Tuesday, so it’s bin night — and it’s an even week, so recycling too.
Set by Sam (Owner) · 3 Oct 2026
How house rules work.
Your standing instructions, kept in one space and credited to you.
You write them once
Owners and editors write a space’s rules and key facts. Bin night, who signs off, who to call. Viewers can read the rules; only owners and editors can change them.
Credited and versioned
Each rule is credited and versioned. Every member sees who set each rule and when.
Their own Claude starts with them
Each member’s own Claude picks them up when a new chat starts, credited. Rules arrive as labelled data at the start of a session, in assistants that call for them. Claude does today; we add another assistant here only after it passes its own live test.
Guidance, never permission
Rules are guidance for that space’s matters, never permission: they can’t share, forget, invite or upload anything for anyone. Each member can turn a space’s rules off for themselves.
Who you leave them for.
From home to the family business: one space for each set of people, with the rules that set of people needs.
Family and care
Brothers and sisters looking after a parent, and Dad’s care instructions in one place.
Call Dad before you book anything for him.
Set by Sam (Owner) · 3 Oct 2026
Talk to Dad first: they’re his wishes. JustOnce keeps records; it doesn’t give health advice.
Help at home
The house-sitter, the dog-walker, the cleaner: what they need, and none of what they don’t.
The dog stays downstairs.
Set by Jo (Owner) · 3 Oct 2026
Invite them by email, no account needed: they create a free one, then accept. Never put codes or passwords in a space.
The family business
When home is the business, and the bookkeeper reads along as a Viewer.
Dad signs anything over $10k.
Set by Rosa (Owner) · 3 Oct 2026
Viewers can read the rules; only owners and editors can change them.
Business with outside helpers
A VA, a bookkeeper or a contractor who needs to know how you do things.
Acme invoices: PO number, to ap@, net 14.
Set by Jo (Owner) · 3 Oct 2026
House rules don’t keep clients apart: someone in two spaces has both spaces’ rules.
Illustrative. The rules shown are examples; each space holds the rules its owners and editors write.
Guidance, never permission.
- Rules are guidance for that space’s matters, never permission: they can’t share, forget, invite or upload anything for anyone.
- When your assistant asks to share something or invite someone, nothing is shared or sent until you approve it in JustOnce.
- Every member sees who set each rule and when, and can turn a space’s rules off for themselves.
- A key fact is what a member wrote — JustOnce doesn’t check it.
- Never put codes or passwords in a space.
Where your instructions reach
Claude’s organisation instructions reach your Claude organisation. A JustOnce space reaches the people you invite, in Claude today.
OpenAI says custom GPTs are scheduled to retire on 11 December 2026. Where can your instructions work?
House rules, answered
Something else? Ask us.
Which assistants pick up house rules?
Claude today. Each member’s own Claude picks them up when a new chat starts, credited. We name another assistant here only after it passes its own live test. Your memory and documents connect to more assistants; the dated list is at justonce.ai/connect.
Can a rule make an assistant share, forget or invite?
No. Rules are guidance for that space’s matters, never permission: they can’t share, forget, invite or upload anything for anyone. When your assistant asks to share something or invite someone, nothing is shared or sent until you approve it in JustOnce.
Who can write or change the rules?
Owners and editors write a space’s rules and key facts. Viewers can read the rules; only owners and editors can change them. An invite your assistant sends is always Viewer; the owner sets Editor in the web app.
Can I stop my own assistant picking up a space’s rules?
Yes. Every member sees who set each rule and when, and can turn a space’s rules off for themselves.
Does JustOnce check what a rule or key fact says?
No. A key fact is what a member wrote — JustOnce doesn’t check it. Keep rules to that space’s matters. Never put codes or passwords in a space.
What does it cost?
Members join free, and recall and search are always free, on every plan. Owning a shared space comes with Plus (1 shared space) or Pro (3); Free is your personal space only.
Who can see a space’s rules?
The space’s members, and anyone you’ve invited: an invitation shows the space’s rules (not its key facts) before they accept. Each member’s connected assistant gets them too. Rules are encrypted under the space’s key; JustOnce holds the keys, so it isn’t end-to-end.
Give your agent a memory
Free: 20 memories and 10 document pages a month, no card. Connecting takes a minute at a computer.
House rules reach each member’s own Claude today.