This is dangerous.

You're sending your context to someone's relay in plain text and loading it in plain text.

What was your initial problem? I usually work with contexts where they were created, like code session in Cursor / chat in Claude app. When do you have the need to often transfer the history?

Why? "Summarize in detail what we're doing here and what we have done/learnt so far so another agent can continue" usually works and does not burn the full context length of tokens (uncached) in the new session.