Google's Open Knowledge Format (OKF), Explained: Markdown Files That Agents Can Trust

The short answer

Google's Open Knowledge Format (OKF) is a spec for writing down what an organization knows as plain markdown files, each starting with a little YAML. A folder of those files is a bundle. Google…

One required field: every file needs a type; everything else is optional

v0.2 adds trust signals: sources, who generated it, who verified it, status and a stale-after date

Not RAG: OKF says nothing about storage or search, so you can still index a bundle

We have not run it: this is a read of Google's docs on 3 October 2026, not a test