after

Language reference / after

Meaning and placement

task

The CONTROL boundary · {producer-task: predicate}. Each entry is one control edge (spec/03-dag.md §after). State, never data — observe outcomes through with:.

Property	Declaration
Requirement	Optional in this object
Schema location	`/$defs/task/properties/after`
type	”object”
additionalProperties	false

In the same object: agent · exec · extract · for_each · group · infer · invoke · lift · on_error · retry · returns · timeout · when · with Schema source (use the pointer above)

In a source template

Excerpt from templates/corpus-qa.nika.yaml, source lines 46–55. This is a fragment, not a runnable workflow.

illustration

        message: "One corpus id names conflicting source text"

  index_once:
    after:
      duplicates_consistent: success
    invoke:
      tool: nika:jq
      args:
        input: ${{ const.documents }}
        expression: "sort_by(.id) | unique_by(.id)"

Templates containing this field

Template	Source
`templates/corpus-qa.nika.yaml`	Line 49
`templates/document-to-fields.nika.yaml`	Line 57
`templates/etl-state.nika.yaml`	Line 120
`templates/fanout.nika.yaml`	Line 160
`templates/human-gated-ship.nika.yaml`	Line 132

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:after. Spec revision: c5ebbb7b862b. How documentation stays connected.

YAML

Language fields

CLI & errors

Data catalogs

Workspace

Documentation system

Tool contracts

Meaning and placement

task

In a source template

Templates containing this field

Contract and implementation

​Meaning and placement

​task

​In a source template

​Templates containing this field

​Contract and implementation

Meaning and placement

task

In a source template

Templates containing this field

Contract and implementation