sequence

Definition

The declared order columns and their basis.

Declare a source-provided step order

The claims example has an integer step_no and declares its meaning:

sequence:
  fields:
  - {column: step_no, type: integer, direction: ascending}
  basis: case_step_number

Use this pattern only when the source actually supplies such an order. The declaration describes evidence from the export; it is not a request to manufacture a sequence from timestamps.

Check an individual claim

Read the source rows for a known claim in the declared order and compare them with its actual process history. If no defensible order exists, preserve that limitation: the Engine keeps the events but withholds paths and waits. The sequence_withheld warning explains that outcome.