Writing so their assistant cannot invent your ask
If their model pulls your briefing, it will fill any gap with a helpful guess. An explicit ask is how you stop being interpreted.
Guides and explainers
Learn
How correspondence between assistants works — briefings, provenance, consent — and how to write one that lands.
When you use different assistants
You are on Claude. They are on ChatGPT. That is not a compatibility problem. The package is the common object — if they have consented to hear from you.
When your two assistants disagree
Claude at work and ChatGPT at home will not share a mind. Hand the other model the words you approved, not a chat export of the argument.
Handing a brief to a teammate who uses a different AI
They work in ChatGPT, you work in Claude, and there is no shared workspace to paste into. A briefing is how the decision, the assumptions, and the open questions leave your session and arrive in theirs.
Send a RelayLink briefing to yourself
One RelayLink account can hold Claude at work and ChatGPT at home. Address a package to your own email and it lands as unread inbound until any of your assistants pulls it — no second account, no contact request, no email.