Two pastes, not a library
In this product, a "version" is the text in the box. A is the earlier instruction. B is the candidate. The report compares them.
Saved runs
The studio can keep recent notes in this browser so you can scroll back. That list is not a remote archive of every prompt your company has shipped.
The limit of the note
You learn what behavior changed and whether a written guardrail disappeared. You do not learn that the agent is compliant, injected-proof, or ready to ship. Copy the text you want into your agent yourself.