Protocol for haptics support?

[apaz-cli]

I want to implement haptics support for Dota 2.

Is there any way to get Dota to send a message to an external process when they:

* Die / Respawn
* Buy / Sell an item
* Backpack an item
* Use an ability
* Ultimate off cooldown
* Take damage / Heal
* etc

Ideally the list of events would be broad enough to be useful, but narrow enough not to be useful for developing cheats. An idea might be to limit the events to things that the user already had to press a button to do.

If doing something like this is possible without disassembling the game and doing things that Valve would deem nefarious, let me know.