the language
stdin
text piped to the command’s standard input. One of 59 words the served contract declares, projected from workflow.schema.json, the same file your editor validates against.
- 1surfaceexec
- optionaleverywherea choice, never a miss
- stringtypethe declared shape
- schemathe sourcenever prose
the contract
1 declarationDescriptions are the schema's own; the deeper invariants (value languages and regexes) ride the same projection. A miss is a nika check finding before anything runs.
- exec
stringtext piped to the command’s standard inputinside exec:
in a real file
a crafted check-green filegrep.nika.yaml
tally: with: hits: ${{ tasks.lines.output }} exec: command: ["wc", "-l"] stdin: "${{ with.hits }}"a verbatim slice, real line numbers from grep.nika.yaml, nika check green; the drift gate re-proves this copy on every test run.
cross-references
no skeleton carries it and no registered code names it; the schema row is the whole story today.
accepted by
defined by
The whole grammar in one place: the four verbs · the standard library · the spec. Try it in the playground. Read the reference →