Cross-Chat References

Allow referencing or including context from previous chats in a new conversation.

What I'd like:

• Ability to attach/link a previous chat (or multiple chats) as context to a new one

• Ideally searchable chat history so finding the right one is easy

• attach/link selectable or all history from Projects

Why it matters:
Work often spans multiple sessions — being able to pull in context from a past conversation without copy-pasting saves time and avoids losing important decisions/outcomes.