it is possible for a task to get its own task run id? say if I wanted each task to send a notification with its task run id for example, would this be possible? and do task run ids persist across retries of the same flow run? (if a flow fails at a task and i restart the flow, will that task have the same task run id as before?)

Yes you can do this by pulling it from context. Yes it persists across retries because the restart just moved failed stuff to a scheduled state.

thanks Kevin, this is exactly what i was looking for!