This sounds useful, thanks.
However, I was thinking more in something that reminds of all the tasks that are dependent on B. Actually this app is a good way to have the trigger (as long as it is something changing a website), but it misses the part or reminding the tasks.
UPDATE:The app has an expansion pack that seems to get (at least very close) to the issue at hand. It contains a “Plug-in to integrate with Tasker, Automate and Automagic”. I have actually never used these apps, but for what I’ve read about them I would be surprised if they would not be able to add events in a calendar or entries in a to-do list.
Still, I would like to know how people deal with these kinds of situations in general, as this only works when a website changes.
Tasker is great in general, I’ve integrated it with my todo list using todoists REST API, which works great.
As for sourcing triggers:
The only general way I can think of is a personal assistant (or some kind of service that provides the same kind of human assistance).
Otherwise maybe figure out a couple of domain-specific trigger-sourcing methods.
If this allows you to do websites, you’ve covered most online things.
For covering non-online things, maybe you can find an API, use some kind of oracle service or similar.
Do you have an example for thing you struggle with?