This linter should offer an option to use the ScalaStyle SBT plugin.

Oh, great point. I wasn't aware of which indexes were available on the edge table. I'll definitely make that change. Anything else to include in the next diff? Should I rename/add Blocking Task IDs and Blocked By Task IDs as well?

No, it's correct. We've got it running on our internal Phabricator installation. You want the list of all tasks that are dependended on by the task you're querying for. So if I wanted all subtasks of T1049: Implement Harbormaster, I would want all tasks that are dependended on by T1049, not all tasks that depend on that task.

We're using high-level tasks to manage individual development/release phases of features, similar to T1049: Implement Harbormaster or T2015: Implement Drydock but with many more subtasks (now called "Blocked By" tasks, it seems, but I'll continue to refer to them as subtasks in this comment for continuity). On the individual task page, you can see a list of all the subtasks of the item (sorted by open v. closed), but there is no mechanism to view those tasks by priority or by assignee, or anything else you can do via Advanced Search.