Model-invoke workstation

Configure type = MODEL_INVOKE for provider-neutral operation bindings and model operations through a MODEL_WORKER backend.

How To Use

Author a workstation with type MODEL_INVOKE and bind a MODEL_WORKER. Choose behavior for the scheduling axis you need — STANDARD for fire-once dispatch, REPEATER for change-triggered loops, CRON for schedules, or POLLER for long-lived poller ingress. Wire inputs plus outputs, onContinue, onRejection, and onFailure so model outcomes route correctly. Set operation for the provider-neutral operation name, and use operationBindings when this step needs named binding maps. Do not set promptFile, outcomeFormat, outputSchema, stopWords, openCodeAgent, classificationRoutes, or cron fields that belong to other WorkstationType or WorkstationKind families. Choose MODEL_WORKSTATION for prompt-file and outcome-parse surfaces, AGENT_RUN for agent loops, or INFERENCE_RUN for bounded inference harness dispatch. MODEL_INVOKE is not a scheduling behavior and is not MODEL_WORKSTATION — keep promptFile, outcomeFormat, outputSchema, and stopWords on the model-workstation type.

Discriminator: type = MODEL_INVOKE

MODEL_INVOKE requires a MODEL_WORKER companion and is compatible with every published WorkstationKind. Bind the model worker, then choose scheduling on the behavior axis. MODEL_WORKSTATION also uses MODEL_WORKER but selects prompt/parse surfaces instead of operation fields.

Schema reference

The embed below shows the live Workstation base definition with MODEL_INVOKE overlay applicability. MODEL_INVOKE selects the exclusive operation and operationBindings fields. Excluded fields belong to other WorkstationType families or to CRON scheduling and must not appear on this type. Open the full Factory schema reference for exhaustive field lookup rather than copying contract text into this page.

Workstation

object

A processing step in the factory graph. Workstations consume authored work states, run a worker or logical move, and emit the next work states.

additionalPropertiesfalse (closed)

Fields

behaviorbehaviorOptionalWorkstationKind
Scheduling behavior for this workstation, such as STANDARD, REPEATER, or CRON execution.
bodybodyOptionalstring
Inline workstation instructions or script body when authored directly in factory config.
classificationRoutesclassificationRoutesOptionalClassificationRoute[]Excluded
Explicit label-to-destination routing used only by CLASSIFIER_WORKSTATION definitions. Each route must declare a unique non-empty label and one or more outputs.
copyReferencedScriptscopyReferencedScriptsOptionalboolean
Copy supported referenced script files into the expanded workstation layout when config expand runs.
croncronOptionalWorkstationCronExcluded
Cron trigger configuration for workstations whose behavior is CRON.
descriptiondescriptionOptionalNameValue
Optional localized customer-facing explanation of this workstation.
envenvOptionalStringMap
Environment variables added to the workstation execution context.
guardsguardsOptionalWorkstationGuard[]Excluded
Guarded loop breakers should use `VISIT_COUNT` guards here with a `LOGICAL_MOVE` workstation instead of top-level exhaustion rules.
ididOptionalstring
Optional durable public identifier for this workstation. Graph and layout references should use this id instead of the mutable name.
inputsinputsRequiredWorkstationIO[]
Work states this workstation can consume before it dispatches.
limitslimitsOptionalWorkstationLimits
Retry and execution ceilings applied to this workstation.
namenameRequiredstring
Customer-authored workstation name used by guards, diagnostics, and authored references.
onContinueonContinueOptionalWorkstationIO[]
Optional destination emitted when the workstation makes partial progress and should continue iterating. Classifier workstations must not declare onContinue.
onFailureonFailureOptionalWorkstationIO[]
Optional destination emitted when the workstation fails permanently.
onRejectiononRejectionOptionalWorkstationIO[]
Optional destination emitted when the worker rejects the current work without a hard failure. Classifier workstations must not declare onRejection.
operationoperationOptionalModelOperationNameSelected
Uppercase provider-agnostic operation requested by `MODEL_INVOKE` workstations, such as `TTS`.
operationBindingsoperationBindingsOptionalWorkstationOperationBinding[]Selected
Optional workstation-authored slot bindings that resolve operation inputs from runtime content or static config content.
outcomeFormatoutcomeFormatOptionalWorkstationOutcomeFormatExcluded
Optional worker-output parsing mode for model workstations. When set to `decision-envelope`, agent output is parsed as a reviewer/checker JSON envelope that maps directly onto WorkResult outcome, feedback, output, and optional recorded output work instead of stop-token routing.
outputSchemaoutputSchemaOptionalstringExcluded
JSON schema string used to validate or parse structured model output when configured.
outputsoutputsOptionalWorkstationIO[]
Work states emitted after a non-classifier workstation succeeds. Classifier workstations must use classificationRoutes instead of normal success outputs.
promptFilepromptFileOptionalstringExcluded
Path to a prompt template file loaded for model-oriented workstation execution.
resourcesresourcesOptionalResourceRequirement[]
Resource capacity this workstation consumes while one dispatch is in flight.
runnerrunnerOptionalRunnerID
Optional workstation-specific runner override. When omitted, dispatch falls back to the factory runner, then worker modelProvider compatibility when no explicit runner is configured, then the default codex runner.
stopWordsstopWordsOptionalarrayExcluded
Stop words authored on the topology entry for model-oriented dispatches.
typetypeOptionalWorkstationType
Runtime workstation implementation type, equivalent to the workstation AGENTS.md frontmatter type.
workPropagationworkPropagationOptionalWorkPropagation
Optional policy for whether downstream work uses the workstation output payload or preserves the consumed input payload.
workerworkerRequiredstring
Name of a worker declared in the workers list.
workingDirectoryworkingDirectoryOptionalstring
Go template resolved from token tags at dispatch time.
worktreeworktreeOptionalstring
Go template resolved and passed as the worktree path to CLI dispatchers.

Full Factory schema reference

Examples

Use the minimal valid example when starting a MODEL_INVOKE with behavior STANDARD, an operation, and optional operationBindings. The misuse example borrows outcomeFormat from MODEL_WORKSTATION — that field is excluded from MODEL_INVOKE.

Minimal valid MODEL_INVOKE workstation:

{
  "name": "chat-invoke-step",
  "worker": "model-main",
  "type": "MODEL_INVOKE",
  "behavior": "STANDARD",
  "operation": "chat.completions",
  "operationBindings": {
    "model": "primary"
  },
  "inputs": [
    "ready"
  ],
  "outputs": [
    "accepted"
  ],
  "onContinue": [
    "ready"
  ],
  "onFailure": [
    "failed"
  ]
}

Incompatible misuse — outcomeFormat on MODEL_INVOKE:

{
  "name": "chat-invoke-step",
  "worker": "model-main",
  "type": "MODEL_INVOKE",
  "behavior": "STANDARD",
  "outcomeFormat": "json",
  "inputs": [
    "ready"
  ],
  "outputs": [
    "accepted"
  ]
}

outcomeFormat belongs on MODEL_WORKSTATION. Keep MODEL_INVOKE on identity, worker binding, inputs, outputs, routing fields, and operation / operationBindings only.