Purview is data governance: classify sensitive information, discover where AI is being used across the estate, apply DLP policy to what people paste into AI tools, and support retention and eDiscovery obligations. The unit of concern is data, and the decisive moment is the one where data might leave. It is enterprise-wide, it is policy-driven, and it can block.
PromptWake starts one moment later. We are not asking whether the prompt should have been sent; we assume it was, and we keep it — along with what the model answered and which lines of which files changed as a result. The unit of concern is a change to a codebase, and the decisive moment is months later, when someone asks how that code came to exist.
A DLP policy stops measuring the instant the prompt is sent. That instant is exactly where the engineering record starts.