diff --git a/docs/api-reference/fabro-api.yaml b/docs/api-reference/fabro-api.yaml
index d12a17ce9..d7ee6f200 100644
--- a/docs/api-reference/fabro-api.yaml
+++ b/docs/api-reference/fabro-api.yaml
@@ -2712,20 +2712,24 @@ components:
           additionalProperties: true
       additionalProperties: true
 
+    EventSeq:
+      description: Assigned sequence number component of a stored event envelope.
+      type: object
+      required:
+        - seq
+      properties:
+        seq:
+          type: integer
+          description: Assigned event sequence number.
+          example: 42
+
     EventEnvelope:
       description: >
         Stored event envelope with assigned sequence number. On the wire the
         envelope is flattened: seq sits alongside the RunEvent payload fields
         at the top level of the JSON object.
       allOf:
-        - type: object
-          required:
-            - seq
-          properties:
-            seq:
-              type: integer
-              description: Assigned event sequence number.
-              example: 42
+        - $ref: "#/components/schemas/EventSeq"
         - $ref: "#/components/schemas/RunEvent"
 
     PaginatedEventList:
diff --git a/lib/packages/fabro-api-client/src/.openapi-generator/FILES b/lib/packages/fabro-api-client/src/.openapi-generator/FILES
index 88db0f6d7..500b36498 100644
--- a/lib/packages/fabro-api-client/src/.openapi-generator/FILES
+++ b/lib/packages/fabro-api-client/src/.openapi-generator/FILES
@@ -62,6 +62,7 @@ models/disk-usage-summary-row.ts
 models/error-response-entry.ts
 models/error-response.ts
 models/event-envelope.ts
+models/event-seq.ts
 models/execute-query-request.ts
 models/execute-query-response-rows-inner-inner.ts
 models/execute-query-response.ts
diff --git a/lib/packages/fabro-api-client/src/models/event-envelope.ts b/lib/packages/fabro-api-client/src/models/event-envelope.ts
index 3b99be9e1..7947bcff7 100644
--- a/lib/packages/fabro-api-client/src/models/event-envelope.ts
+++ b/lib/packages/fabro-api-client/src/models/event-envelope.ts
@@ -18,12 +18,15 @@
 import type { ActorRef } from './actor-ref';
 // May contain unused imports in some cases
 // @ts-ignore
+import type { EventSeq } from './event-seq';
+// May contain unused imports in some cases
+// @ts-ignore
 import type { RunEvent } from './run-event';
 
 /**
  * @type EventEnvelope
  * Stored event envelope with assigned sequence number. On the wire the envelope is flattened: seq sits alongside the RunEvent payload fields at the top level of the JSON object. 
  */
-export type EventEnvelope = RunEvent;
+export type EventEnvelope = EventSeq & RunEvent;
 
 
diff --git a/lib/packages/fabro-api-client/src/models/event-seq.ts b/lib/packages/fabro-api-client/src/models/event-seq.ts
new file mode 100644
index 000000000..79f135951
--- /dev/null
+++ b/lib/packages/fabro-api-client/src/models/event-seq.ts
@@ -0,0 +1,26 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+ * Fabro Run API
+ * HTTP API for managing Fabro workflow run executions.
+ *
+ * The version of the OpenAPI document: 0.1.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+
+/**
+ * Assigned sequence number component of a stored event envelope.
+ */
+export interface EventSeq {
+    /**
+     * Assigned event sequence number.
+     */
+    'seq': number;
+}
+
diff --git a/lib/packages/fabro-api-client/src/models/index.ts b/lib/packages/fabro-api-client/src/models/index.ts
index adc64cfd0..83ec5eb72 100644
--- a/lib/packages/fabro-api-client/src/models/index.ts
+++ b/lib/packages/fabro-api-client/src/models/index.ts
@@ -44,6 +44,7 @@ export * from './disk-usage-summary-row';
 export * from './error-response';
 export * from './error-response-entry';
 export * from './event-envelope';
+export * from './event-seq';
 export * from './execute-query-request';
 export * from './execute-query-response';
 export * from './execute-query-response-rows-inner-inner';