We have a great plugin for you. Our plugin in Dataiku creates and updates Looker metadata with metadata from Dataiku.
The plugin also updates existing Looker tables with newly added columns in Dataiku, making new columns available right away for ad-hoc Analysis and Dashboards in Looker.
Another example is the Column Description in Dataiku is available as the Looker Field Column Description, making information more transparent and available for your business users and developers.