A single stage of an Agent Pipeline: an object with exactly one verb key + its args. Either a
capability ({ tool, with?, pipeInto? }), a pure operator ({ where: "..." },
{ select: [...] }, { sort, first, last, count, distinct, flatten, jsonpath, lines, grep, head, tail }), or a control construct ({ map: { as, do } }, { let: { name, value } }).
Structured JSON values flow between stages; the server validates the precise shape.
A single stage of an Agent Pipeline: an object with exactly one verb key + its args. Either a capability (
{ tool, with?, pipeInto? }), a pure operator ({ where: "..." },{ select: [...] },{ sort, first, last, count, distinct, flatten, jsonpath, lines, grep, head, tail }), or a control construct ({ map: { as, do } },{ let: { name, value } }). Structured JSON values flow between stages; the server validates the precise shape.