Google releases Open Knowledge Format, a vendor-neutral markdown-based standard for representing knowledge that any system can produce and consume without proprietary APIs.

What happened: Google has published the Open Knowledge Format (OKF) v0.1 specification, a system for storing knowledge as plain markdown files with YAML frontmatter organized in directories. The release includes a reference agent that automatically produces OKF bundles from BigQuery datasets and web sources, a visualizer that renders bundles as interactive HTML, and three sample bundles (GA4 e-commerce, Stack Overflow, and Bitcoin data) ready to browse.

Why it matters: OKF is designed to be lock-in free and version-controllable—bundles live in git and work with standard markdown tools like Obsidian, Notion, and MkDocs without custom SDKs or proprietary query languages. This means knowledge curation can follow the same pull-request and code-review workflows engineers already use, and LLMs can ingest the content directly into context without intermediary APIs.

What to watch: The format deliberately mixes structured frontmatter fields (type, resource, tags, timestamp) with unstructured markdown prose, and supports graph-shaped relationships through cross-links in markdown rather than just tree-based directory hierarchy. The proof-of-concept visualizer runs entirely in the browser using Cytoscape.js and marked, with no data leaving the page.