Control & Flow Actions

Control and flow actions direct how a run proceeds: invoke another rule set, write to the log, iterate over an array, or pause for a person to step in.

At a glance

Action	Use it to
Rule	Invoke another rule set, optionally passing parameters.
Log	Record a message and optional attachments during the run.
Human Intervention	Pause the run for human review, then resume.
Array Loop	Repeat a set of actions once per item in an array.

Rule

The Rule action invokes another rule set by id, letting you factor shared logic into reusable units and compose larger workflows. Its key settings:

Field	Role
Rule Set Id	The rule set to invoke.
Copy Existing Context	Whether the called rule set inherits the current context.
Rule Set Parameters	Named values passed into the called rule set.

See Rules for how rule sets are organized.

Log

The Log action records a message during execution, which is invaluable for tracing and debugging. It takes a log level, one or more values to write (joined by an optional separator), and optional attachments referenced by context key.

Field	Role
Log Level	Severity of the entry.
Values	One or more values that make up the message.
Value Separator	Optional text inserted between values.
Attachments	Optional context keys attached to the entry.

Log entries surface in Logging & Observability, where you can review what a run did.

Human Intervention

The Human Intervention action pauses the run and waits for a person to review and respond. The engine generates a time-limited URL (optionally a form) that a reviewer opens; submitting it resumes the run at a designated rule set.

Field	Role
Rule Set Id	The rule set resumed when the reviewer submits.
Url Expiration Hours	How long the generated link stays valid.
Max Url Uses	How many times the link may be used (defaults to one).
Generated Url Context Key	Context key that receives the generated link.
Form Document Json	Optional definition of the review form.

See Human Intervention for the full pause-and-resume flow. This action is not available inside extension projects.

Array Loop

The Array Loop action repeats a nested set of actions once for each element of an array, exposing the current item and index to the inner actions on each pass. Use it to process collections — for example, calling an API or transforming a value for every record in a list.