Khan's external interface is still experimental, so there's only one task that is currently useful:

%fard

[%fard p=(fyrd cage)]

Run a thread from within Arvo

p contains the thread location, name, and start arguments. See the fyrd data type reference entry for details.

Returns

When the thread finishes, either by succeeding or failing, Khan will return an %arow gift, which looks like :

[%arow p=(avow cage)]

p either contains the result in a cage, or an error and stack trace if it failed. See the avow data type reference entry for details.