We'll keep you posted on how / when we implement this !
In the meantime, it's not super ergonomic but you can emulate this by asking your agent to fetch the table comments once before running SQL queries. This might be a bit slow because the assistant will need to generate this query but it will work.
Alternatively, you can make a dust app where you hard-code a SQL query that retrieves the table comments, and ask your agent to always call this dust app before executing SQL queries (this will be faster)
Happy to help with either of those if needed !