Hi HN, I built this because I wanted a standard way to tell my internal LLM proxy which data is ephemeral and which can be saved. It's a draft spec (RFC), and I

Hi HN, I built this because I wanted a standard way to tell my internal LLM proxy which data is ephemeral and which can be saved. It's a draft spec (RFC), and I've included fail-safe libraries for Go/Python. Would love feedback on the header structure.