fail_fast
Meaning and placement
task → for_each
Whether the fan-out abandons the batch on the first failure · default true. False finishes every item and yields null at a failed index, so the batch reports what it could.
In the same object: items · max_parallel
Schema source (use the pointer above)
In a source template
Excerpt fromtemplates/fanout.nika.yaml, source lines 101–110. This is a fragment, not a runnable workflow.
illustration
Templates containing this field
These are literal key occurrences in the source files, not an execution or conformance claim. How to instantiate a template.
Contract and implementation
This page projects the named specification revision. Check released engine status and the validation workflow before running a file. An optional field is not evidence that every engine supports every value. Canonical identity:language:word:fail_fast. Spec revision: c5ebbb7b862b.
How documentation stays connected.