diff --git a/openapi.yaml b/openapi.yaml
index 3b602e0f6..30f85b6ad 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -1999,6 +1999,26 @@ components:
           items:
             type: string
           description: List of node IDs to execute (partial graph execution)
+        workflow_id:
+          type: string
+          format: uuid
+          nullable: true
+          x-runtime: [cloud]
+          description: |
+            UUID identifying a hosted-cloud workflow entity to associate with this
+            job. Local ComfyUI doesn't track workflow entities and returns `null`
+            (or omits the field). The `x-runtime: [cloud]` extension marks this
+            as populated only by the hosted-cloud runtime; absence of the tag
+            means a field is populated by all runtimes.
+        workflow_version_id:
+          type: string
+          format: uuid
+          nullable: true
+          x-runtime: [cloud]
+          description: |
+            UUID identifying a hosted-cloud workflow version to associate with
+            this job. Local ComfyUI returns `null` (or omits the field). See
+            `workflow_id` above for `x-runtime` semantics.
 
     PromptResponse:
       type: object