Operation Extensions

Operations extend a TRN by appending an action verb. The operation is not part of the resource identity—it simply tells executors what to do.

{TRN}:{operation}

Concept	Description	Example
TRN	Resource identifier	`trn:stepflow:default:workflow/order`
Operation	Verb	`start`, `invoke`, `execute`, `fire`
Directive	TRN + operation	`trn:stepflow:default:workflow/order:start`

Standard operations

Service	Resource	Operation	Example
StepFlow	workflow	`start`	`trn:stepflow:default:workflow/order:start`
AIonixFn	function	`invoke`	`trn:aionixfn:default:function/calc:invoke`
OpenAct	action	`execute`	`trn:openact:default:action/http/get:execute`
Igniter	trigger	`fire`	`trn:igniter:default:trigger/cron/daily:fire`

In workflow DSL

steps:
  ProcessOrder:
    type: task
    action: "trn:aionixfn:default:function/validate:invoke"
    parameters:
      orderId: "{% input.orderId %}"
    next: Notify
 
  Notify:
    type: task
    action: "trn:openact:default:action/slack/alert:execute"
    end: true

The base TRN encodes the resource; the suffix selects the runtime operation.

Resource Classes Service Reference