Right now, if you look at a child task, you'll see the "Parent task" row with a link to it. The reverse is not true, there's no link to the children tasks.

The challenge here is that a build can trigger a lot of tasks, in the low hundred, so the UI needs to have a minimum of reasonable scalability. At worst a scrollbar would do. The aim here is for smaller scale, this is still useful to click around.

Right now only the task ID is presented, not the task name. Maybe the task names would be useful, for the "Parent task" too. But this requires a fair amount of RPCs so these RPCs should be done as a low priority as there's no way to do it efficiently at the moment.

Adding a simple RPC to retrieve task names for a given list of task ids would likely be useful to batch it a bit, e.g. 20 tasks at a time. I'm fine to add this if this is seen as useful (I think).