Custom tool/event to notify what todo items have been cmopleted

[DonJayamanne]

This is what we'd like to display in VS Code
This used to work in Copilot CLI, as we had todo tool that contains markdown that could be parsed.
In VS Code agent, the todo tool outputs contains a structured JSON output

The todo too intput/outputs are not usable in its current form.
I'd like a new event or the like so that UIs can parse the data and build a custom UI element to show what todo has been completed
I.e. we'd like a way to display the progress to users.

[SteveSandersonMS]

Thanks for the info. Options:

1. In the runtime's sql tool, each time it does a query that appears to be insert/update/delete on the todos table or the dependencies table, we could query the DB to get the full set of todos and dependencies, and emit an event that contains all the structured data
2. Or, instead of emitting an event that contains all the data, we could emit an event that just says "todos updated", and have a separate SDK API for fetching the full structured list of todos

I think option 2 is probably better, because the todos list can be arbitrarily long, and the todos could contain massive descriptions. Forcing that over the TCP connection for every client on every update may be undesirable. Also it would have to be a non-ephemeral event so that reconnecting clients can see the latest todos without having to wait for them to be updated again, so we'd be storing the full todos on disk over and over.

Better to let the consumer choose how often to get the info, and maybe let the "get todos" API accept a param that controls what detail level you get back.