List the farms this connection can reach: the signed-in account, plus the connected account when the person has one (docfarm's work/personal split, two separate farms held by one person). Call this FIRST whenever a request could concern either farm, or when the person says "my personal", "my work", "my other account", or names an address that is not the signed-in one. Then pass account on the tool you actually want. Docs, links, viewers and analytics never mix between the two.