Context and continuity
What the next worker — machine or person — knows at the moment it begins, and what is left behind when the current one ends. Everything here is a question about durable state: whether the repository can say what matters, or whether the only copy is in a conversation that is about to be discarded.
Not in this area: whether what a worker did with the context can be shown to be correct, which is verification, and whether the rules it loaded were the right ones, which is governance.